Climate and average weather in Lai Chi Van
In Lai Chi Van, the summers are oppressive, hot, wet, and partly cloudy and the winters are mild, breezy, and partly cloudy.
Over the course of the year, the temperature in Lai Chi Van typically varies from 15°C to 29°C, and is rarely below 11°C or above 30°C. August is the hottest month of the year, while January is the coldest.
Based on the travel score, the best times of year to visit Lai Chi Van for warm-weather activities are from early April to late April and early October to late December.
- Hottest
- Aug
- 29°
- Coldest
- Jan
- 15°
- Wettest
- Aug
- 347 mm
- Driest
- Jan
- 35 mm
- Rain / yr
- 1796 mm
- 151 wet days
- Daylight
- 10.6–13.4 h
- shortest–longest
- Elevation
- 22 m
- 22.1°N
- Clearest
- Oct
- 40% cloud
Lai Chi Van weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early October to late December.
Temperature through the year
Daily average highs and lows in Lai Chi Van, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 5.3 months, from May 11 to October 19, with daily high temperatures above 26°C. The hottest month of the year in Lai Chi Van is August, with an average high of 29°C and low of 27°C.
The cool season lasts 2.9 months, from December 11 to March 7, with daily high temperatures below 20°C. The coldest month of the year in Lai Chi Van is January, with an average low of 15°C and high of 18°C.
Days typically run about 2°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 19 | 21 | 24 | 26 | 28 | 29 | 29 | 28 | 26 | 23 | 19 |
| Avg low (°C) | 15 | 16 | 19 | 22 | 25 | 27 | 28 | 27 | 27 | 24 | 21 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 18 | 15 |
| Feb | 19 | 16 |
| Mar | 21 | 19 |
| Apr | 24 | 22 |
| May | 26 | 25 |
| Jun | 28 | 27 |
| Jul | 29 | 28 |
| Aug | 29 | 27 |
| Sep | 28 | 27 |
| Oct | 26 | 24 |
| Nov | 23 | 21 |
| Dec | 19 | 17 |
How hot and cold Lai Chi Van really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Lai Chi Van feels like about 35°C (around July 30). About 112 days a year carry some heat stress, peaking in July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 18 | 18 | 21 | 23 | 28 | 34 | 35 | 35 | 33 | 27 | 23 | 19 |
| Air high (°C) | 18 | 19 | 21 | 24 | 26 | 28 | 29 | 29 | 28 | 26 | 23 | 19 |
| Feels-like low (°C) | 15 | 16 | 19 | 22 | 25 | 27 | 27 | 27 | 26 | 24 | 21 | 17 |
| Air low (°C) | 15 | 16 | 19 | 22 | 25 | 27 | 28 | 27 | 27 | 24 | 21 | 17 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 18 | 18 | 15 | 15 |
| Feb | 18 | 19 | 16 | 16 |
| Mar | 21 | 21 | 19 | 19 |
| Apr | 23 | 24 | 22 | 22 |
| May | 28 | 26 | 25 | 25 |
| Jun | 34 | 28 | 27 | 27 |
| Jul | 35 | 29 | 27 | 28 |
| Aug | 35 | 29 | 27 | 27 |
| Sep | 33 | 28 | 26 | 27 |
| Oct | 27 | 26 | 24 | 24 |
| Nov | 23 | 23 | 21 | 21 |
| Dec | 19 | 19 | 17 | 17 |
Average hourly temperature in Lai Chi Van
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 29°C, and coldest before dawn in January, near 15°C.
Lai Chi Van weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 18° / 15° | 35 | 6 | 10.8 | 6.5 |
| Feb | 19° / 16° | 51 | 8.7 | 11.2 | 6.0 |
| Mar | 21° / 19° | 69 | 10.5 | 11.8 | 6.2 |
| Apr | 24° / 22° | 109 | 10.9 | 12.5 | 6.5 |
| May | 26° / 25° | 208 | 16.6 | 13 | 5.5 |
| Jun | 28° / 27° | 303 | 21.4 | 13.3 | 4.1 |
| Jul | 29° / 28° | 277 | 19.9 | 13.2 | 4.2 |
| Aug | 29° / 27° | 347 | 21.4 | 12.8 | 4.1 |
| Sep | 28° / 27° | 231 | 17.1 | 12.1 | 5.0 |
| Oct | 26° / 24° | 91 | 8.5 | 11.5 | 7.2 |
| Nov | 23° / 21° | 39 | 5.8 | 10.9 | 7.8 |
| Dec | 19° / 17° | 36 | 4.5 | 10.7 | 7.2 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Lai Chi Van gets about 1796 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.
The wetter season lasts 5.2 months, from around Apr 27 to Sep 30, peaking in June at about 75% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 10.
August is the wettest month by volume, with 347 mm over about 21 wet days; January is the driest, with 35 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 20 | 31 | 34 | 37 | 53 | 71 | 65 | 69 | 56 | 28 | 19 | 15 |
| Rain days | 6 | 9 | 11 | 11 | 17 | 21 | 20 | 21 | 17 | 9 | 6 | 5 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 20 | 6 |
| Feb | 31 | 9 |
| Mar | 34 | 11 |
| Apr | 37 | 11 |
| May | 53 | 17 |
| Jun | 71 | 21 |
| Jul | 65 | 20 |
| Aug | 69 | 21 |
| Sep | 56 | 17 |
| Oct | 28 | 9 |
| Nov | 19 | 6 |
| Dec | 15 | 5 |
Monthly rainfall
Over a full year, Lai Chi Van collects about 1796 mm of rain across 151 wet days — roughly 150 mm in an average month.
It doesn’t fall evenly. August is the wettest month with 347 mm, while January is the driest at just 35 mm. The three wettest months alone bring about 52% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 35 | 51 | 69 | 109 | 208 | 303 | 277 | 347 | 231 | 91 | 39 | 36 |
| Rain days | 6 | 9 | 11 | 11 | 17 | 21 | 20 | 21 | 17 | 9 | 6 | 5 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 35 | 6 |
| Feb | 51 | 9 |
| Mar | 69 | 11 |
| Apr | 109 | 11 |
| May | 208 | 17 |
| Jun | 303 | 21 |
| Jul | 277 | 20 |
| Aug | 347 | 21 |
| Sep | 231 | 17 |
| Oct | 91 | 9 |
| Nov | 39 | 6 |
| Dec | 36 | 5 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Lai Chi Van, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around September 7 and lasts for 5.1 months, ending around February 7. The clearest month is October, when the sky is clear, mostly clear, or partly cloudy 70% of the time on average.
The cloudier part of the year begins around February 8 and lasts for 6.9 months, ending around September 6. The cloudiest month is June, when it is overcast or mostly cloudy 79% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 56 | 44 | 40 | 43 | 33 | 21 | 33 | 38 | 54 | 70 | 68 | 62 |
| Cloudier (%) | 44 | 56 | 60 | 57 | 67 | 79 | 67 | 62 | 46 | 30 | 32 | 38 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 56 | 44 |
| Feb | 44 | 56 |
| Mar | 40 | 60 |
| Apr | 43 | 57 |
| May | 33 | 67 |
| Jun | 21 | 79 |
| Jul | 33 | 67 |
| Aug | 38 | 62 |
| Sep | 54 | 46 |
| Oct | 70 | 30 |
| Nov | 68 | 32 |
| Dec | 62 | 38 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 19, brings about 13 h 24 min of light; the shortest, around December 19, only 10 h 36 min — a swing of roughly 2 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.8 | 11.2 | 11.8 | 12.5 | 13.0 | 13.3 | 13.2 | 12.8 | 12.1 | 11.5 | 10.9 | 10.7 |
| Sunrise (AM) | 7:12 | 7:03 | 6:40 | 6:11 | 5:50 | 5:46 | 5:54 | 6:07 | 6:16 | 6:26 | 6:43 | 7:02 |
| Sunset (PM) | 5:59 | 6:18 | 6:31 | 6:41 | 6:54 | 7:06 | 7:08 | 6:53 | 6:24 | 5:55 | 5:39 | 5:42 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 10.8 | 7:12 | 5:59 |
| Feb | 11.2 | 7:03 | 6:18 |
| Mar | 11.8 | 6:40 | 6:31 |
| Apr | 12.5 | 6:11 | 6:41 |
| May | 13.0 | 5:50 | 6:54 |
| Jun | 13.3 | 5:46 | 7:06 |
| Jul | 13.2 | 5:54 | 7:08 |
| Aug | 12.8 | 6:07 | 6:53 |
| Sep | 12.1 | 6:16 | 6:24 |
| Oct | 11.5 | 6:26 | 5:55 |
| Nov | 10.9 | 6:43 | 5:39 |
| Dec | 10.7 | 7:02 | 5:42 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Lai Chi Van averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 18 days.
The sunnier stretch runs 5.0 months, from around Sep 7 to Feb 6. The sunniest month is October, with roughly 17 sunny days (bright).
The greyest month is June, down near 4 sunny days — about 76% fewer than the October peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 13 | 9 | 7 | 8 | 7 | 4 | 7 | 8 | 12 | 18 | 16 | 15 |
| Sky | Mixed | Mixed | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed | Bright | Bright | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 13 | Mixed |
| Feb | 9 | Mixed |
| Mar | 7 | Gloomy |
| Apr | 8 | Gloomy |
| May | 7 | Gloomy |
| Jun | 4 | Gloomy |
| Jul | 7 | Gloomy |
| Aug | 8 | Gloomy |
| Sep | 12 | Mixed |
| Oct | 18 | Bright |
| Nov | 16 | Bright |
| Dec | 15 | Mixed |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Lai Chi Van, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 7.7 months, from around March 19 to November 6. The muggiest month is May, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around November 7 to March 18, and January is the most comfortable month — the air is dry or comfortable 72% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 49 | 32 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 13 | 42 |
| Comfortable (%) | 23 | 22 | 14 | 4 | 0 | 0 | 0 | 0 | 0 | 5 | 20 | 25 |
| Humid (%) | 23 | 27 | 25 | 12 | 2 | 0 | 0 | 0 | 1 | 13 | 24 | 21 |
| Muggy (%) | 5 | 18 | 39 | 26 | 10 | 1 | 0 | 0 | 8 | 31 | 26 | 9 |
| Oppressive (%) | 0 | 1 | 11 | 47 | 35 | 9 | 1 | 2 | 27 | 38 | 17 | 2 |
| Miserable (%) | 0 | 0 | 0 | 9 | 53 | 89 | 99 | 98 | 63 | 11 | 1 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 49 | 23 | 23 | 5 | 0 | 0 |
| Feb | 32 | 22 | 27 | 18 | 1 | 0 |
| Mar | 11 | 14 | 25 | 39 | 11 | 0 |
| Apr | 1 | 4 | 12 | 26 | 47 | 9 |
| May | 0 | 0 | 2 | 10 | 35 | 53 |
| Jun | 0 | 0 | 0 | 1 | 9 | 89 |
| Jul | 0 | 0 | 0 | 0 | 1 | 99 |
| Aug | 0 | 0 | 0 | 0 | 2 | 98 |
| Sep | 0 | 0 | 1 | 8 | 27 | 63 |
| Oct | 2 | 5 | 13 | 31 | 38 | 11 |
| Nov | 13 | 20 | 24 | 26 | 17 | 1 |
| Dec | 42 | 25 | 21 | 9 | 2 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Lai Chi Van is typically breezy, near 21 km/h, and varies moderately with the seasons.
The windier part of the year lasts 5.3 months, from around Oct 7 to Mar 16. The windiest month is December, averaging about 24 km/h (breezy).
The calmer part of the year runs from around Jul 22 to Oct 6, with August the calmest month at about 18 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 23 | 22 | 21 | 19 | 18 | 21 | 21 | 18 | 19 | 22 | 23 | 24 |
| Feels | breezy | breezy | breezy | light breeze | light breeze | breezy | breezy | light breeze | light breeze | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 23 | breezy |
| Feb | 22 | breezy |
| Mar | 21 | breezy |
| Apr | 19 | light breeze |
| May | 18 | light breeze |
| Jun | 21 | breezy |
| Jul | 21 | breezy |
| Aug | 18 | light breeze |
| Sep | 19 | light breeze |
| Oct | 22 | breezy |
| Nov | 23 | breezy |
| Dec | 24 | breezy |
Hazard calendar for Lai Chi Van
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Lai Chi Van sits in the Pacific typhoon belt; the season peaks July–October.
Lai Chi Van's monsoon runs May–September, when most of the year's rain falls.
Best time to visit Lai Chi Van
To characterize how pleasant the weather is in Lai Chi Van throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late December, Lai Chi Van is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best times of year to visit Lai Chi Van for general outdoor tourist activities run from early April to late April and again from early October to mid January, with a peak score in the first week of November.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 6.5 | 6.0 | 6.2 | 6.5 | 5.5 | 4.1 | 4.2 | 4.1 | 5.0 | 7.2 | 7.8 | 7.2 |
| Rating | good | good | good | good | fair | fair | fair | fair | fair | good | ideal | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 6.5 | good |
| Feb | 6.0 | good |
| Mar | 6.2 | good |
| Apr | 6.5 | good |
| May | 5.5 | fair |
| Jun | 4.1 | fair |
| Jul | 4.2 | fair |
| Aug | 4.1 | fair |
| Sep | 5.0 | fair |
| Oct | 7.2 | good |
| Nov | 7.8 | ideal |
| Dec | 7.2 | good |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Lai Chi Van for hot-weather activities is from mid September to late November, with a peak score in the last week of October.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Lai Chi Van, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around August (highs near 29°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 18°C), pack a windbreaker.
In August, Lai Chi Van sees daytime highs around 29°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.
Sea temperature near Lai Chi Van
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea offshore is warmest in August at about 29°C and coldest in January near 19°C.
It's comfortable for a long swim from Mar 12 to Dec 25 — about 9.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19 | 19 | 20 | 23 | 26 | 28 | 29 | 29 | 28 | 27 | 24 | 21 |
| Comfort | Cool | Cool | Refreshing | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 19 | Cool |
| Feb | 19 | Cool |
| Mar | 20 | Refreshing |
| Apr | 23 | Refreshing |
| May | 26 | Warm |
| Jun | 28 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 28 | Tropical |
| Oct | 27 | Warm |
| Nov | 24 | Refreshing |
| Dec | 21 | Refreshing |
UV index (midday) in Lai Chi Van by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Lai Chi Van peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 8 | 10 | 10 | 10 | 12 | 12 | 11 | 10 | 9 | 7 | 6 |
| Level | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 8 | Very high |
| Mar | 10 | Very high |
| Apr | 10 | Very high |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 9 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Average hourly UV index in Lai Chi Van
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 5.5 | 6.5 | 7 | 7.5 | 8 | 8.5 | 8.5 | 8 | 7.5 | 6.5 | 6 | 5.5 |
| UV ≥ 6 (h/day) | 1.5 | 3.5 | 5 | 5 | 5.5 | 6.5 | 6.5 | 6 | 5 | 4 | 2.5 | 1.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 5.5 | 1.5 |
| Feb | 6.5 | 3.5 |
| Mar | 7 | 5 |
| Apr | 7.5 | 5 |
| May | 8 | 5.5 |
| Jun | 8.5 | 6.5 |
| Jul | 8.5 | 6.5 |
| Aug | 8 | 6 |
| Sep | 7.5 | 5 |
| Oct | 6.5 | 4 |
| Nov | 6 | 2.5 |
| Dec | 5.5 | 1.5 |
Air quality in Lai Chi Van by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Lai Chi Van is worst in January — around 81 µg/m³ PM2.5 (unhealthy), about 5.8× the cleanest month (June, 14 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 81 | 66 | 54 | 38 | 24 | 14 | 15 | 20 | 32 | 52 | 62 | 75 |
| Level | Unhealthy | Unhealthy | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 81 | Unhealthy |
| Feb | 66 | Unhealthy |
| Mar | 54 | Poor |
| Apr | 38 | Poor |
| May | 24 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 20 | Moderate |
| Sep | 32 | Moderate |
| Oct | 52 | Poor |
| Nov | 62 | Unhealthy |
| Dec | 75 | Unhealthy |
Growing season
Lai Chi Van is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Lai Chi Van banks about 4,843 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 203 | 208 | 302 | 384 | 490 | 528 | 562 | 560 | 522 | 475 | 358 | 251 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 203 |
| Feb | 208 |
| Mar | 302 |
| Apr | 384 |
| May | 490 |
| Jun | 528 |
| Jul | 562 |
| Aug | 560 |
| Sep | 522 |
| Oct | 475 |
| Nov | 358 |
| Dec | 251 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Lai Chi Van receives about 4.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.4 and 5.7 kWh/m².
The brighter stretch of the year lasts 6.9 months, from around Apr 1 to Oct 28. The brightest month is July, averaging about 5.6 kWh/m² (bright).
The dimmest month is December, down near 3.4 kWh/m² — roughly 39% less than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.4 | 3.6 | 4.2 | 4.9 | 5.2 | 5.2 | 5.6 | 5.1 | 5.0 | 4.8 | 3.9 | 3.4 |
| Level | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 3.4 | Moderate |
| Feb | 3.6 | Moderate |
| Mar | 4.2 | Bright |
| Apr | 4.9 | Bright |
| May | 5.2 | Bright |
| Jun | 5.2 | Bright |
| Jul | 5.6 | Bright |
| Aug | 5.1 | Bright |
| Sep | 5.0 | Bright |
| Oct | 4.8 | Bright |
| Nov | 3.9 | Moderate |
| Dec | 3.4 | Moderate |
Where is Lai Chi Van?
Lai Chi Van sits at 22.1°N, 113.6°E, 22 m above sea level, in Macao. The nearest listed city is Luhuan, 0.0 km away.
Topography around Lai Chi Van
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Lai Chi Van.
Within 3 km, the terrain around Lai Chi Van has significant variations in elevation — a maximum elevation change of 358 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 452 m; within 80 km, large variations in elevation — a maximum elevation change of 1,004 m.
The land around Lai Chi Van is covered by trees (32%), water (31%) and artificial surfaces (24%) within 3 km, water (71%) within 16 km, and water (61%) within 80 km.
Macao travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type D / G / M
- 230 V · 50 Hz
- Prices
- ≈ 55% of US
- price level, 2025
- GDP per capita
- $75,902
- 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 0.6
- per 100k, 2023
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Lai Chi Van (22.1197°, 113.5511°, elevation 22 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).