Climate and average weather in Vaalwater
In Vaalwater, the summers are hot, showery, and partly cloudy and the winters are mild and clear.
Over the course of the year, the temperature in Vaalwater typically varies from 6°C to 28°C, and is rarely below 2°C or above 33°C. January is the hottest month of the year, while July is the coldest.
Based on the travel score, the best time of year to visit Vaalwater for warm-weather activities is from early April to early October.
- Hottest
- Jan
- 28°
- Coldest
- Jul
- 6°
- Wettest
- Jan
- 101 mm
- Driest
- Aug
- 2 mm
- Rain / yr
- 505 mm
- 74 wet days
- Daylight
- 10.5–13.5 h
- shortest–longest
- Elevation
- 1,188 m
- 24.3°S
- Clearest
- Jul
- 15% cloud
Vaalwater 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 April to early October.
Temperature through the year
Daily average highs and lows in Vaalwater, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 6.5 months, from September 10 to March 27, with daily high temperatures above 26°C. The hottest month of the year in Vaalwater is January, with an average high of 28°C and low of 18°C.
The cool season lasts 2.0 months, from June 1 to August 1, with daily high temperatures below 22°C. The coldest month of the year in Vaalwater is July, with an average low of 6°C and high of 21°C.
Days typically run about 12°C warmer than nights, with the widest day–night swing (around 15°C) in August.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 27 | 25 | 23 | 21 | 21 | 23 | 27 | 28 | 28 | 28 |
| Avg low (°C) | 18 | 18 | 16 | 13 | 9 | 6 | 6 | 9 | 12 | 15 | 17 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 28 | 18 |
| Feb | 28 | 18 |
| Mar | 27 | 16 |
| Apr | 25 | 13 |
| May | 23 | 9 |
| Jun | 21 | 6 |
| Jul | 21 | 6 |
| Aug | 23 | 9 |
| Sep | 27 | 12 |
| Oct | 28 | 15 |
| Nov | 28 | 17 |
| Dec | 28 | 18 |
Average hourly temperature in Vaalwater
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 January afternoons, near 28°C, and coldest before dawn in July, near 6°C.
Vaalwater 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 | 28° / 18° | 101 | 12.9 | 13.3 | 5.6 |
| Feb | 28° / 18° | 77 | 9.6 | 12.8 | 6.0 |
| Mar | 27° / 16° | 58 | 9.2 | 12.2 | 6.8 |
| Apr | 25° / 13° | 33 | 4.7 | 11.4 | 8.0 |
| May | 23° / 9° | 11 | 2.1 | 10.8 | 8.9 |
| Jun | 21° / 6° | 5 | 1 | 10.5 | 8.7 |
| Jul | 21° / 6° | 3 | 0.6 | 10.6 | 8.7 |
| Aug | 23° / 9° | 2 | 0.5 | 11.2 | 9.3 |
| Sep | 27° / 12° | 10 | 1.8 | 11.8 | 8.5 |
| Oct | 28° / 15° | 37 | 6.3 | 12.6 | 6.9 |
| Nov | 28° / 17° | 73 | 10.9 | 13.2 | 6.0 |
| Dec | 28° / 18° | 96 | 14 | 13.5 | 5.6 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Vaalwater gets about 505 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 5.7 months, from around Oct 18 to Apr 8, peaking in December at about 47% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 17.
January is the wettest month by volume, with 101 mm over about 13 wet days; August is the driest, with 2 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 41 | 35 | 30 | 16 | 7 | 3 | 2 | 2 | 6 | 20 | 36 | 44 |
| Rain days | 13 | 10 | 9 | 5 | 2 | 1 | 1 | 1 | 2 | 6 | 11 | 14 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 41 | 13 |
| Feb | 35 | 10 |
| Mar | 30 | 9 |
| Apr | 16 | 5 |
| May | 7 | 2 |
| Jun | 3 | 1 |
| Jul | 2 | 1 |
| Aug | 2 | 1 |
| Sep | 6 | 2 |
| Oct | 20 | 6 |
| Nov | 36 | 11 |
| Dec | 44 | 14 |
Monthly rainfall
Over a full year, Vaalwater collects about 505 mm of rain across 74 wet days — roughly 42 mm in an average month.
It doesn’t fall evenly. January is the wettest month with 101 mm, while August is the driest at just 2 mm. The three wettest months alone bring about 54% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 101 | 77 | 58 | 33 | 11 | 5 | 3 | 2 | 10 | 37 | 73 | 96 |
| Rain days | 13 | 10 | 9 | 5 | 2 | 1 | 1 | 1 | 2 | 6 | 11 | 14 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 101 | 13 |
| Feb | 77 | 10 |
| Mar | 58 | 9 |
| Apr | 33 | 5 |
| May | 11 | 2 |
| Jun | 5 | 1 |
| Jul | 3 | 1 |
| Aug | 2 | 1 |
| Sep | 10 | 2 |
| Oct | 37 | 6 |
| Nov | 73 | 11 |
| Dec | 96 | 14 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Vaalwater, 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 April 13 and lasts for 6.0 months, ending around October 13. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 93% of the time on average.
The cloudier part of the year begins around October 14 and lasts for 5.9 months, ending around April 12. The cloudiest month is December, when it is overcast or mostly cloudy 46% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 58 | 61 | 68 | 77 | 90 | 92 | 92 | 93 | 88 | 74 | 59 | 54 |
| Cloudier (%) | 42 | 39 | 32 | 23 | 10 | 8 | 8 | 7 | 12 | 26 | 41 | 46 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 58 | 42 |
| Feb | 61 | 39 |
| Mar | 68 | 32 |
| Apr | 77 | 23 |
| May | 90 | 10 |
| Jun | 92 | 8 |
| Jul | 92 | 8 |
| Aug | 93 | 7 |
| Sep | 88 | 12 |
| Oct | 74 | 26 |
| Nov | 59 | 41 |
| Dec | 54 | 46 |
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 January 1, brings about 13 h 30 min of light; the shortest, around June 8, only 10 h 30 min — a swing of roughly 3 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.3 | 12.8 | 12.2 | 11.4 | 10.8 | 10.5 | 10.6 | 11.2 | 11.8 | 12.6 | 13.2 | 13.5 |
| Sunrise (AM) | 5:36 | 5:57 | 6:12 | 6:25 | 6:39 | 6:53 | 6:54 | 6:37 | 6:06 | 5:35 | 5:17 | 5:19 |
| Sunset (PM) | 6:57 | 6:47 | 6:22 | 5:51 | 5:29 | 5:23 | 5:32 | 5:46 | 5:58 | 6:10 | 6:29 | 6:49 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 13.3 | 5:36 | 6:57 |
| Feb | 12.8 | 5:57 | 6:47 |
| Mar | 12.2 | 6:12 | 6:22 |
| Apr | 11.4 | 6:25 | 5:51 |
| May | 10.8 | 6:39 | 5:29 |
| Jun | 10.5 | 6:53 | 5:23 |
| Jul | 10.6 | 6:54 | 5:32 |
| Aug | 11.2 | 6:37 | 5:46 |
| Sep | 11.8 | 6:06 | 5:58 |
| Oct | 12.6 | 5:35 | 6:10 |
| Nov | 13.2 | 5:17 | 6:29 |
| Dec | 13.5 | 5:19 | 6:49 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Vaalwater averages about 18 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 26 days.
The sunnier stretch runs 5.9 months, from around Apr 18 to Oct 13. The sunniest month is July, with roughly 26 sunny days (brilliant).
The greyest month is December, down near 10 sunny days — about 63% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 10 | 10 | 14 | 17 | 24 | 26 | 26 | 26 | 24 | 18 | 11 | 10 |
| Sky | Mixed | Mixed | Mixed | Bright | Brilliant | Brilliant | Brilliant | Brilliant | Brilliant | Bright | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 10 | Mixed |
| Feb | 10 | Mixed |
| Mar | 14 | Mixed |
| Apr | 17 | Bright |
| May | 24 | Brilliant |
| Jun | 26 | Brilliant |
| Jul | 26 | Brilliant |
| Aug | 26 | Brilliant |
| Sep | 24 | Brilliant |
| Oct | 18 | Bright |
| Nov | 11 | Mixed |
| Dec | 10 | 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 Vaalwater, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 4.4 months, from around November 17 to March 31. The muggiest month is January, when the air feels humid, muggy or worse about 53% of the time.
The most comfortable stretch runs from around April 1 to November 16, and May is the most comfortable month — the air is dry or comfortable 100% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 12 | 14 | 30 | 70 | 98 | 100 | 100 | 100 | 98 | 81 | 47 | 18 |
| Comfortable (%) | 35 | 39 | 42 | 25 | 2 | 0 | 0 | 0 | 2 | 18 | 39 | 41 |
| Humid (%) | 46 | 40 | 25 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 38 |
| Muggy (%) | 7 | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 12 | 35 | 46 | 7 |
| Feb | 14 | 39 | 40 | 7 |
| Mar | 30 | 42 | 25 | 3 |
| Apr | 70 | 25 | 4 | 0 |
| May | 98 | 2 | 0 | 0 |
| Jun | 100 | 0 | 0 | 0 |
| Jul | 100 | 0 | 0 | 0 |
| Aug | 100 | 0 | 0 | 0 |
| Sep | 98 | 2 | 0 | 0 |
| Oct | 81 | 18 | 1 | 0 |
| Nov | 47 | 39 | 14 | 0 |
| Dec | 18 | 41 | 38 | 3 |
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 Vaalwater is typically calm, near 8 km/h, and varies little with the seasons.
The windier part of the year lasts 4.6 months, from around Aug 2 to Dec 20. The windiest month is October, averaging about 10 km/h (calm).
The calmer part of the year runs from around Dec 21 to Aug 1, with May the calmest month at about 7 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 10 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 8 | calm |
| Feb | 8 | calm |
| Mar | 8 | calm |
| Apr | 7 | calm |
| May | 7 | calm |
| Jun | 8 | calm |
| Jul | 8 | calm |
| Aug | 9 | calm |
| Sep | 10 | calm |
| Oct | 10 | calm |
| Nov | 10 | calm |
| Dec | 9 | calm |
Hazard calendar for Vaalwater
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Vaalwater's rainy season runs November–March, when most of the year's rain falls.
Best time to visit Vaalwater
To characterize how pleasant the weather is in Vaalwater throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid April, Vaalwater is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
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 Vaalwater for general outdoor tourist activities is from early April to early October, with a peak score in the third week of August.
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) | 5.6 | 6.1 | 6.8 | 8.0 | 8.9 | 8.7 | 8.7 | 9.3 | 8.5 | 6.9 | 6.0 | 5.6 |
| Rating | good | good | good | ideal | ideal | ideal | ideal | ideal | ideal | good | good | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 5.6 | good |
| Feb | 6.1 | good |
| Mar | 6.8 | good |
| Apr | 8.0 | ideal |
| May | 8.9 | ideal |
| Jun | 8.7 | ideal |
| Jul | 8.7 | ideal |
| Aug | 9.3 | ideal |
| Sep | 8.5 | ideal |
| Oct | 6.9 | good |
| Nov | 6.0 | good |
| Dec | 5.6 | good |
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 Vaalwater for hot-weather activities run from early February to mid May and again from mid August to mid November, with a peak score in the third week of September.
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 Vaalwater, 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 January (highs near 28°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 21°C), pack a warm layer.
In January, Vaalwater sees daytime highs around 28°C and nights near 18°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.
UV index (midday) in Vaalwater 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 Vaalwater peaks around January 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 5 (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) | 15 | 13 | 13 | 9 | 6 | 5 | 6 | 8 | 10 | 10 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 13 | Extreme |
| Mar | 13 | Extreme |
| Apr | 9 | Very high |
| May | 6 | High |
| Jun | 5 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 10 | Very high |
| Oct | 10 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Average hourly UV index in Vaalwater
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 January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 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) | 9 | 8.5 | 8 | 6.5 | 5.5 | 5 | 5.5 | 6.5 | 7.5 | 7.5 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 7 | 6.5 | 6 | 4.5 | 1.5 | 0 | 1.5 | 3.5 | 5 | 5.5 | 6.5 | 7 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7 |
| Feb | 8.5 | 6.5 |
| Mar | 8 | 6 |
| Apr | 6.5 | 4.5 |
| May | 5.5 | 1.5 |
| Jun | 5 | 0 |
| Jul | 5.5 | 1.5 |
| Aug | 6.5 | 3.5 |
| Sep | 7.5 | 5 |
| Oct | 7.5 | 5.5 |
| Nov | 8.5 | 6.5 |
| Dec | 9 | 7 |
Air quality in Vaalwater 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 Vaalwater is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 6 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) | 7 | 9 | 10 | 12 | 16 | 15 | 16 | 14 | 17 | 12 | 8 | 6 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 9 | Good |
| Mar | 10 | Good |
| Apr | 12 | Moderate |
| May | 16 | Moderate |
| Jun | 15 | Moderate |
| Jul | 16 | Moderate |
| Aug | 14 | Moderate |
| Sep | 17 | Moderate |
| Oct | 12 | Moderate |
| Nov | 8 | Good |
| Dec | 6 | Good |
Growing season
Vaalwater 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 | 99 | 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 | 99 | 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. Vaalwater banks about 3,401 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 408 | 364 | 363 | 273 | 193 | 104 | 97 | 184 | 288 | 362 | 370 | 396 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 408 |
| Feb | 364 |
| Mar | 363 |
| Apr | 273 |
| May | 193 |
| Jun | 104 |
| Jul | 97 |
| Aug | 184 |
| Sep | 288 |
| Oct | 362 |
| Nov | 370 |
| Dec | 396 |
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.
Vaalwater receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.0 and 6.8 kWh/m².
The brighter stretch of the year lasts 6.5 months, from around Aug 29 to Mar 14. The brightest month is October, averaging about 6.7 kWh/m² (intense).
The dimmest month is June, down near 4.1 kWh/m² — roughly 39% less than the October peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.5 | 6.1 | 5.6 | 4.9 | 4.5 | 4.1 | 4.3 | 5.2 | 6.2 | 6.7 | 6.6 | 6.6 |
| Level | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.5 | Intense |
| Feb | 6.1 | Intense |
| Mar | 5.6 | Bright |
| Apr | 4.9 | Bright |
| May | 4.5 | Bright |
| Jun | 4.1 | Bright |
| Jul | 4.3 | Bright |
| Aug | 5.2 | Bright |
| Sep | 6.2 | Intense |
| Oct | 6.7 | Intense |
| Nov | 6.6 | Intense |
| Dec | 6.6 | Intense |
Where is Vaalwater?
Vaalwater sits at 24.3°S, 28.1°E, 1,188 m above sea level, in South Africa. The nearest listed city is Modimolle, 53 km away.
Topography around Vaalwater
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vaalwater.
Within 3 km, the terrain around Vaalwater has only modest variations in elevation — a maximum elevation change of 104 m around an average of 1,170 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 598 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,265 m.
The land around Vaalwater is covered by shrubs (40%) and grassland (32%) within 3 km, shrubs (61%) and grassland (27%) within 16 km, and shrubs (64%) and grassland (21%) within 80 km.
South Africa travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / M / N
- 230 V · 50 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $6,598
- 2025
- Happiness
- 5.0 / 10
- World Happiness, 2025
- Safe drinking water
- 68%
- of population, 2024
- Homicide rate
- 43.7
- per 100k, 2022
- Road deaths
- 22.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very high
- EF EPI 602
- 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 Vaalwater (-24.2957°, 28.1141°, elevation 1,188 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. 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).