Climate and average weather in Phong Điền
In Phong Điền, the summers are muggy, hot, wet, and mostly cloudy and the winters are warm and mostly cloudy.
Over the course of the year, the temperature in Phong Điền typically varies from 17°C to 33°C, and is rarely below 14°C or above 35°C. June is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Phong Điền for warm-weather activities is from late December to late March.
- Hottest
- Jun
- 33°
- Coldest
- Jan
- 17°
- Wettest
- Nov
- 540 mm
- Driest
- Feb
- 121 mm
- Rain / yr
- 3263 mm
- 256 wet days
- Daylight
- 11.0–13.0 h
- shortest–longest
- Elevation
- 14 m
- 16.6°N
- Clearest
- Mar
- 65% cloud
Phong Điền 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 late December to late March.
Temperature through the year
Daily average highs and lows in Phong Điền, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.8 months, from April 20 to September 13, with daily high temperatures above 30°C. The hottest month of the year in Phong Điền is June, with an average high of 33°C and low of 25°C.
The cool season lasts 2.6 months, from November 29 to February 14, with daily high temperatures below 24°C. The coldest month of the year in Phong Điền is January, with an average low of 17°C and high of 23°C.
Days typically run about 6°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 24 | 27 | 30 | 31 | 33 | 32 | 32 | 30 | 27 | 25 | 23 |
| Avg low (°C) | 17 | 18 | 20 | 22 | 24 | 25 | 25 | 25 | 24 | 22 | 20 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 23 | 17 |
| Feb | 24 | 18 |
| Mar | 27 | 20 |
| Apr | 30 | 22 |
| May | 31 | 24 |
| Jun | 33 | 25 |
| Jul | 32 | 25 |
| Aug | 32 | 25 |
| Sep | 30 | 24 |
| Oct | 27 | 22 |
| Nov | 25 | 20 |
| Dec | 23 | 18 |
How hot and cold Phong Điền 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, Phong Điền feels like about 38°C (around June 9). About 178 days a year carry some heat stress, peaking in June.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 23 | 24 | 28 | 34 | 37 | 38 | 37 | 36 | 34 | 29 | 25 | 23 |
| Air high (°C) | 23 | 24 | 27 | 30 | 31 | 33 | 32 | 32 | 30 | 27 | 25 | 23 |
| Feels-like low (°C) | 17 | 18 | 20 | 22 | 24 | 25 | 25 | 25 | 24 | 22 | 20 | 18 |
| Air low (°C) | 17 | 18 | 20 | 22 | 24 | 25 | 25 | 25 | 24 | 22 | 20 | 18 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 23 | 23 | 17 | 17 |
| Feb | 24 | 24 | 18 | 18 |
| Mar | 28 | 27 | 20 | 20 |
| Apr | 34 | 30 | 22 | 22 |
| May | 37 | 31 | 24 | 24 |
| Jun | 38 | 33 | 25 | 25 |
| Jul | 37 | 32 | 25 | 25 |
| Aug | 36 | 32 | 25 | 25 |
| Sep | 34 | 30 | 24 | 24 |
| Oct | 29 | 27 | 22 | 22 |
| Nov | 25 | 25 | 20 | 20 |
| Dec | 23 | 23 | 18 | 18 |
Average hourly temperature in Phong Điền
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 June afternoons, near 33°C, and coldest before dawn in January, near 17°C.
Phong Điền 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 | 23° / 17° | 193 | 18.1 | 11.1 | 5.3 |
| Feb | 24° / 18° | 121 | 15 | 11.4 | 5.7 |
| Mar | 27° / 20° | 143 | 17 | 11.9 | 5.4 |
| Apr | 30° / 22° | 171 | 20.9 | 12.4 | 3.8 |
| May | 31° / 24° | 281 | 25.9 | 12.8 | 2.7 |
| Jun | 33° / 25° | 153 | 20.2 | 13 | 2.6 |
| Jul | 32° / 25° | 167 | 20.3 | 12.9 | 2.9 |
| Aug | 32° / 25° | 202 | 20.8 | 12.6 | 3.0 |
| Sep | 30° / 24° | 349 | 25 | 12.1 | 3.1 |
| Oct | 27° / 22° | 512 | 25.9 | 11.6 | 4.0 |
| Nov | 25° / 20° | 540 | 23.2 | 11.2 | 4.5 |
| Dec | 23° / 18° | 431 | 23.4 | 11 | 4.5 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Phong Điền gets about 3263 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.
The wetter season lasts 4.2 months, from around Aug 19 to Dec 24, peaking in September at about 85% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Mar 7.
November is the wettest month by volume, with 540 mm over about 23 wet days; February is the driest, with 121 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 59 | 54 | 55 | 70 | 83 | 68 | 65 | 68 | 83 | 83 | 78 | 75 |
| Rain days | 18 | 15 | 17 | 21 | 26 | 20 | 20 | 21 | 25 | 26 | 23 | 23 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 59 | 18 |
| Feb | 54 | 15 |
| Mar | 55 | 17 |
| Apr | 70 | 21 |
| May | 83 | 26 |
| Jun | 68 | 20 |
| Jul | 65 | 20 |
| Aug | 68 | 21 |
| Sep | 83 | 25 |
| Oct | 83 | 26 |
| Nov | 78 | 23 |
| Dec | 75 | 23 |
Monthly rainfall
Over a full year, Phong Điền collects about 3263 mm of rain across 256 wet days — roughly 272 mm in an average month.
It doesn’t fall evenly. November is the wettest month with 540 mm, while February is the driest at just 121 mm. The three wettest months alone bring about 45% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 193 | 121 | 143 | 171 | 281 | 153 | 167 | 202 | 349 | 512 | 540 | 431 |
| Rain days | 18 | 15 | 17 | 21 | 26 | 20 | 20 | 21 | 25 | 26 | 23 | 23 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 193 | 18 |
| Feb | 121 | 15 |
| Mar | 143 | 17 |
| Apr | 171 | 21 |
| May | 281 | 26 |
| Jun | 153 | 20 |
| Jul | 167 | 20 |
| Aug | 202 | 21 |
| Sep | 349 | 25 |
| Oct | 512 | 26 |
| Nov | 540 | 23 |
| Dec | 431 | 23 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Phong Điền, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.
The clearer part of the year begins around January 25 and lasts for 3.6 months, ending around May 13. The clearest month is March, when the sky is clear, mostly clear, or partly cloudy 40% of the time on average.
The cloudier part of the year begins around November 21 and lasts for 2.1 months, ending around January 24. The cloudiest month is December, when it is overcast or mostly cloudy 84% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 23 | 34 | 40 | 38 | 24 | 17 | 21 | 16 | 18 | 25 | 26 | 16 |
| Cloudier (%) | 77 | 66 | 60 | 62 | 76 | 83 | 79 | 84 | 82 | 75 | 74 | 84 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 23 | 77 |
| Feb | 34 | 66 |
| Mar | 40 | 60 |
| Apr | 38 | 62 |
| May | 24 | 76 |
| Jun | 17 | 83 |
| Jul | 21 | 79 |
| Aug | 16 | 84 |
| Sep | 18 | 82 |
| Oct | 25 | 75 |
| Nov | 26 | 74 |
| Dec | 16 | 84 |
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 8, brings about 13 hours of light; the shortest, around January 1, only 11 hours — a swing of roughly 2 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.1 | 11.4 | 11.9 | 12.4 | 12.8 | 13.0 | 12.9 | 12.6 | 12.1 | 11.6 | 11.2 | 11.0 |
| Sunrise (AM) | 6:27 | 6:22 | 6:04 | 5:40 | 5:24 | 5:21 | 5:29 | 5:38 | 5:42 | 5:47 | 5:59 | 6:16 |
| Sunset (PM) | 5:33 | 5:48 | 5:57 | 6:02 | 6:10 | 6:20 | 6:23 | 6:11 | 5:48 | 5:24 | 5:12 | 5:17 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 11.1 | 6:27 | 5:33 |
| Feb | 11.4 | 6:22 | 5:48 |
| Mar | 11.9 | 6:04 | 5:57 |
| Apr | 12.4 | 5:40 | 6:02 |
| May | 12.8 | 5:24 | 6:10 |
| Jun | 13.0 | 5:21 | 6:20 |
| Jul | 12.9 | 5:29 | 6:23 |
| Aug | 12.6 | 5:38 | 6:11 |
| Sep | 12.1 | 5:42 | 5:48 |
| Oct | 11.6 | 5:47 | 5:24 |
| Nov | 11.2 | 5:59 | 5:12 |
| Dec | 11.0 | 6:16 | 5:17 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Phong Điền averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 8 days.
The sunnier stretch runs 3.9 months, from around Jan 10 to May 7. The sunniest month is March, with roughly 8 sunny days (gloomy).
The greyest month is December, down near 2 sunny days — about 75% fewer than the March peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 4 | 6 | 8 | 6 | 3 | 2 | 3 | 2 | 3 | 3 | 3 | 2 |
| Sky | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 4 | Gloomy |
| Feb | 6 | Gloomy |
| Mar | 8 | Gloomy |
| Apr | 6 | Gloomy |
| May | 3 | Gloomy |
| Jun | 2 | Gloomy |
| Jul | 3 | Gloomy |
| Aug | 2 | Gloomy |
| Sep | 3 | Gloomy |
| Oct | 3 | Gloomy |
| Nov | 3 | Gloomy |
| Dec | 2 | Gloomy |
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 Phong Điền, how humid it feels changes noticeably over the year.
The more humid part of the year lasts 8.7 months, from around March 10 to November 28. The muggiest month is April, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around November 29 to March 9, and January is the most comfortable month — the air is dry or comfortable 16% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Comfortable (%) | 14 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 10 |
| Humid (%) | 34 | 27 | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 12 | 28 |
| Muggy (%) | 40 | 38 | 27 | 11 | 2 | 1 | 1 | 1 | 2 | 17 | 36 | 42 |
| Oppressive (%) | 9 | 24 | 55 | 64 | 54 | 67 | 86 | 82 | 78 | 72 | 48 | 18 |
| Miserable (%) | 0 | 0 | 4 | 23 | 44 | 33 | 14 | 17 | 20 | 7 | 2 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 3 | 14 | 34 | 40 | 9 | 0 |
| Feb | 2 | 9 | 27 | 38 | 24 | 0 |
| Mar | 0 | 3 | 11 | 27 | 55 | 4 |
| Apr | 0 | 0 | 2 | 11 | 64 | 23 |
| May | 0 | 0 | 0 | 2 | 54 | 44 |
| Jun | 0 | 0 | 0 | 1 | 67 | 33 |
| Jul | 0 | 0 | 0 | 1 | 86 | 14 |
| Aug | 0 | 0 | 0 | 1 | 82 | 17 |
| Sep | 0 | 0 | 0 | 2 | 78 | 20 |
| Oct | 0 | 1 | 3 | 17 | 72 | 7 |
| Nov | 0 | 2 | 12 | 36 | 48 | 2 |
| Dec | 2 | 10 | 28 | 42 | 18 | 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 Phong Điền is typically calm, near 7 km/h, and varies little with the seasons.
The windier part of the year lasts 2.4 months, from around Jun 12 to Aug 24. The windiest month is August, averaging about 8 km/h (calm).
The calmer part of the year runs from around Feb 15 to Jun 11, with May the calmest month at about 5 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 7 | 6 | 6 | 5 | 7 | 8 | 8 | 6 | 7 | 8 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 8 | calm |
| Feb | 7 | calm |
| Mar | 6 | calm |
| Apr | 6 | calm |
| May | 5 | calm |
| Jun | 7 | calm |
| Jul | 8 | calm |
| Aug | 8 | calm |
| Sep | 6 | calm |
| Oct | 7 | calm |
| Nov | 8 | calm |
| Dec | 8 | calm |
Hazard calendar for Phong Điền
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Phong Điền sits in the Pacific typhoon belt; the season peaks July–October.
Phong Điền's rainy season runs September–December, when most of the year's rain falls.
Best time to visit Phong Điền
To characterize how pleasant the weather is in Phong Điền throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late March, Phong Điền 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 time of year to visit Phong Điền for general outdoor tourist activities is from late December to late March, with a peak score in the second week of February.
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) | 5.3 | 5.7 | 5.4 | 3.8 | 2.7 | 2.6 | 2.9 | 3.0 | 3.1 | 4.0 | 4.5 | 4.5 |
| Rating | fair | good | fair | fair | poor | poor | poor | poor | poor | fair | fair | fair |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 5.3 | fair |
| Feb | 5.7 | good |
| Mar | 5.4 | fair |
| Apr | 3.8 | fair |
| May | 2.7 | poor |
| Jun | 2.6 | poor |
| Jul | 2.9 | poor |
| Aug | 3.0 | poor |
| Sep | 3.1 | poor |
| Oct | 4.0 | fair |
| Nov | 4.5 | fair |
| Dec | 4.5 | fair |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Phong Điền for hot-weather activities run from early February to late April and again from mid June to late August, with a peak score in the second week of March.
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 Phong Điền, 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 June (highs near 33°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 23°C), pack light clothes and rain gear.
In June, Phong Điền sees daytime highs around 33°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.
Sea temperature near Phong Điền
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea at the nearest coast (about 28 km away) is warmest in August at about 30°C and coldest in February near 22°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 23 | 22 | 23 | 25 | 28 | 29 | 29 | 30 | 29 | 28 | 26 | 24 |
| Comfort | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 23 | Refreshing |
| Feb | 22 | Refreshing |
| Mar | 23 | Refreshing |
| Apr | 25 | Warm |
| May | 28 | Warm |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Tropical |
| Nov | 26 | Warm |
| Dec | 24 | Warm |
UV index (midday) in Phong Điền 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 Phong Điền peaks around August 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (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) | 9 | 10 | 9 | 10 | 11 | 13 | 13 | 14 | 12 | 10 | 8 | 6 |
| Level | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 10 | Very high |
| Mar | 9 | Very high |
| Apr | 10 | Extreme |
| May | 11 | Extreme |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 14 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 6 | High |
Average hourly UV index in Phong Điền
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 August 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) | 7 | 7 | 7 | 7.5 | 8 | 8.5 | 8.5 | 8.5 | 8 | 7 | 6.5 | 6 |
| UV ≥ 6 (h/day) | 4.5 | 5 | 4.5 | 5.5 | 6 | 6.5 | 6.5 | 6.5 | 6 | 5 | 4 | 2 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 7 | 4.5 |
| Feb | 7 | 5 |
| Mar | 7 | 4.5 |
| Apr | 7.5 | 5.5 |
| May | 8 | 6 |
| Jun | 8.5 | 6.5 |
| Jul | 8.5 | 6.5 |
| Aug | 8.5 | 6.5 |
| Sep | 8 | 6 |
| Oct | 7 | 5 |
| Nov | 6.5 | 4 |
| Dec | 6 | 2 |
Air quality in Phong Điền 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 Phong Điền is worst in March — around 76 µg/m³ PM2.5 (unhealthy), about 5.1× the cleanest month (July, 15 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) | 21 | 27 | 76 | 66 | 26 | 17 | 15 | 16 | 19 | 21 | 18 | 21 |
| Level | Moderate | Moderate | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 21 | Moderate |
| Feb | 27 | Moderate |
| Mar | 76 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 26 | Moderate |
| Jun | 17 | Moderate |
| Jul | 15 | Moderate |
| Aug | 16 | Moderate |
| Sep | 19 | Moderate |
| Oct | 21 | Moderate |
| Nov | 18 | Moderate |
| Dec | 21 | Moderate |
Growing season
Phong Điền 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. Phong Điền banks about 5,441 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around June.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 308 | 312 | 420 | 479 | 546 | 563 | 576 | 563 | 502 | 457 | 387 | 327 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 308 |
| Feb | 312 |
| Mar | 420 |
| Apr | 479 |
| May | 546 |
| Jun | 563 |
| Jul | 576 |
| Aug | 563 |
| Sep | 502 |
| Oct | 457 |
| Nov | 387 |
| Dec | 327 |
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.
Phong Điền receives about 4.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.3 and 5.7 kWh/m².
The brighter stretch of the year lasts 6.6 months, from around Mar 2 to Sep 18. The brightest month is June, averaging about 5.7 kWh/m² (bright).
The dimmest month is December, down near 2.5 kWh/m² — roughly 57% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.0 | 3.9 | 4.9 | 5.5 | 5.7 | 5.7 | 5.4 | 5.2 | 4.5 | 3.7 | 3.0 | 2.4 |
| Level | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 3.0 | Moderate |
| Feb | 3.9 | Moderate |
| Mar | 4.9 | Bright |
| Apr | 5.5 | Bright |
| May | 5.7 | Bright |
| Jun | 5.7 | Bright |
| Jul | 5.4 | Bright |
| Aug | 5.2 | Bright |
| Sep | 4.5 | Bright |
| Oct | 3.7 | Moderate |
| Nov | 3.0 | Moderate |
| Dec | 2.4 | Moderate |
Where is Phong Điền?
Phong Điền sits at 16.6°N, 107.4°E, 14 m above sea level, in Vietnam. The nearest listed city is Hương Trà, 13 km away.
Topography around Phong Điền
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Phong Điền.
Within 3 km, the terrain around Phong Điền has only modest variations in elevation — a maximum elevation change of 67 m around an average of 12 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 678 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,057 m.
The land around Phong Điền is covered by trees (50%) and grassland (20%) within 3 km, trees (53%) and cropland (20%) within 16 km, and trees (62%) and water (29%) within 80 km.
Vietnam travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B / C / F
- 220 V · 50 Hz
- Prices
- ≈ 29% of US
- price level, 2025
- GDP per capita
- $5,066
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Safe drinking water
- 59%
- of population, 2024
- Homicide rate
- 1.5
- per 100k, 2011
- Road deaths
- 30.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 500
- 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 Phong Điền (16.5832°, 107.3644°, elevation 14 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).