Climate and average weather in Wau
In Wau, the summers are sweltering, fairly dry, and partly cloudy and the winters are hot and mostly cloudy.
Over the course of the year, the temperature in Wau typically varies from 22°C to 38°C, and is rarely below 19°C or above 41°C. March is the hottest month of the year, while August is the coldest.
Based on the travel score, the best times of year to visit Wau for warm-weather activities are from mid June to late September and mid October to mid January.
- Hottest
- Mar
- 38°
- Coldest
- Aug
- 22°
- Wettest
- Aug
- 192 mm
- Driest
- Jan
- 0 mm
- Rain / yr
- 982 mm
- 154 wet days
- Daylight
- 11.6–12.4 h
- shortest–longest
- Elevation
- 440 m
- 7.7°N
- Clearest
- Dec
- 36% cloud
Wau is city in northwestern South Sudan.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Wau 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 mid June to late September.
Temperature through the year
Daily average highs and lows in Wau, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 2.7 months, from January 27 to April 19, with daily high temperatures above 36°C. The hottest month of the year in Wau is March, with an average high of 38°C and low of 26°C.
The cool season lasts 3.6 months, from June 20 to October 5, with daily high temperatures below 32°C. The coldest month of the year in Wau is August, with an average low of 22°C and high of 30°C.
Days typically run about 10°C warmer than nights, with the widest day–night swing (around 13°C) in February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 37 | 38 | 36 | 34 | 32 | 30 | 30 | 31 | 32 | 34 | 35 |
| Avg low (°C) | 23 | 24 | 26 | 26 | 25 | 23 | 23 | 22 | 22 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 35 | 23 |
| Feb | 37 | 24 |
| Mar | 38 | 26 |
| Apr | 36 | 26 |
| May | 34 | 25 |
| Jun | 32 | 23 |
| Jul | 30 | 23 |
| Aug | 30 | 22 |
| Sep | 31 | 22 |
| Oct | 32 | 23 |
| Nov | 34 | 23 |
| Dec | 35 | 23 |
How hot and cold Wau 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, Wau feels like about 39°C (around April 27). Nearly every day a year carries some heat stress, peaking in April.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 35 | 37 | 38 | 38 | 38 | 35 | 34 | 33 | 35 | 36 | 35 | 35 |
| Air high (°C) | 35 | 37 | 38 | 36 | 34 | 32 | 30 | 30 | 31 | 32 | 34 | 35 |
| Feels-like low (°C) | 23 | 24 | 26 | 26 | 25 | 23 | 22 | 22 | 22 | 23 | 23 | 23 |
| Air low (°C) | 23 | 24 | 26 | 26 | 25 | 23 | 23 | 22 | 22 | 23 | 23 | 23 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 35 | 35 | 23 | 23 |
| Feb | 37 | 37 | 24 | 24 |
| Mar | 38 | 38 | 26 | 26 |
| Apr | 38 | 36 | 26 | 26 |
| May | 38 | 34 | 25 | 25 |
| Jun | 35 | 32 | 23 | 23 |
| Jul | 34 | 30 | 22 | 23 |
| Aug | 33 | 30 | 22 | 22 |
| Sep | 35 | 31 | 22 | 22 |
| Oct | 36 | 32 | 23 | 23 |
| Nov | 35 | 34 | 23 | 23 |
| Dec | 35 | 35 | 23 | 23 |
Average hourly temperature in Wau
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 March afternoons, near 38°C, and coldest before dawn in August, near 22°C.
Wau 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 | 35° / 23° | 0 | 0.2 | 11.6 | 3.0 |
| Feb | 37° / 24° | 3 | 0.7 | 11.7 | 1.8 |
| Mar | 38° / 26° | 20 | 4.2 | 11.9 | 1.3 |
| Apr | 36° / 26° | 58 | 12.7 | 12.2 | 1.7 |
| May | 34° / 25° | 118 | 19.5 | 12.3 | 2.4 |
| Jun | 32° / 23° | 127 | 20.5 | 12.4 | 3.0 |
| Jul | 30° / 23° | 166 | 23.5 | 12.4 | 3.3 |
| Aug | 30° / 22° | 192 | 24.8 | 12.3 | 3.3 |
| Sep | 31° / 22° | 155 | 23.2 | 12 | 3.1 |
| Oct | 32° / 23° | 125 | 20.2 | 11.8 | 3.1 |
| Nov | 34° / 23° | 17 | 3.9 | 11.6 | 3.6 |
| Dec | 35° / 23° | 1 | 0.2 | 11.6 | 3.3 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Wau gets about 982 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 6.5 months, from around Apr 15 to Oct 29, peaking in August at about 81% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 21.
August is the wettest month by volume, with 192 mm over about 25 wet days; January is the driest, with 0 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 1 | 2 | 15 | 42 | 62 | 69 | 76 | 80 | 77 | 63 | 15 | 1 |
| Rain days | 0 | 1 | 4 | 13 | 20 | 21 | 24 | 25 | 23 | 20 | 4 | 0 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 1 | 0 |
| Feb | 2 | 1 |
| Mar | 15 | 4 |
| Apr | 42 | 13 |
| May | 62 | 20 |
| Jun | 69 | 21 |
| Jul | 76 | 24 |
| Aug | 80 | 25 |
| Sep | 77 | 23 |
| Oct | 63 | 20 |
| Nov | 15 | 4 |
| Dec | 1 | 0 |
Monthly rainfall
Over a full year, Wau collects about 982 mm of rain across 154 wet days — roughly 82 mm in an average month.
It doesn’t fall evenly. August is the wettest month with 192 mm, while January is the driest at just 0 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) | 0 | 3 | 20 | 58 | 118 | 127 | 166 | 192 | 155 | 125 | 17 | 1 |
| Rain days | 0 | 1 | 4 | 13 | 20 | 21 | 24 | 25 | 23 | 20 | 4 | 0 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 3 | 1 |
| Mar | 20 | 4 |
| Apr | 58 | 13 |
| May | 118 | 20 |
| Jun | 127 | 21 |
| Jul | 166 | 24 |
| Aug | 192 | 25 |
| Sep | 155 | 23 |
| Oct | 125 | 20 |
| Nov | 17 | 4 |
| Dec | 1 | 0 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Wau, 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 October 29 and lasts for 5.1 months, ending around April 2. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 76% of the time on average.
The cloudier part of the year begins around April 3 and lasts for 6.9 months, ending around October 28. The cloudiest month is August, when it is overcast or mostly cloudy 71% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 68 | 66 | 56 | 43 | 40 | 43 | 33 | 29 | 39 | 44 | 66 | 76 |
| Cloudier (%) | 32 | 34 | 44 | 57 | 60 | 57 | 67 | 71 | 61 | 56 | 34 | 24 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 68 | 32 |
| Feb | 66 | 34 |
| Mar | 56 | 44 |
| Apr | 43 | 57 |
| May | 40 | 60 |
| Jun | 43 | 57 |
| Jul | 33 | 67 |
| Aug | 29 | 71 |
| Sep | 39 | 61 |
| Oct | 44 | 56 |
| Nov | 66 | 34 |
| Dec | 76 | 24 |
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 May 16, brings about 12 h 24 min of light; the shortest, around January 1, only 11 h 36 min — a swing of roughly 0 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.6 | 11.7 | 11.9 | 12.2 | 12.3 | 12.4 | 12.4 | 12.3 | 12.0 | 11.8 | 11.6 | 11.6 |
| Sunrise (AM) | 7:29 | 7:30 | 7:19 | 7:03 | 6:54 | 6:55 | 7:01 | 7:04 | 7:01 | 6:58 | 7:04 | 7:18 |
| Sunset (PM) | 7:05 | 7:15 | 7:16 | 7:13 | 7:15 | 7:22 | 7:26 | 7:20 | 7:04 | 6:48 | 6:43 | 6:51 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 11.6 | 7:29 | 7:05 |
| Feb | 11.7 | 7:30 | 7:15 |
| Mar | 11.9 | 7:19 | 7:16 |
| Apr | 12.2 | 7:03 | 7:13 |
| May | 12.3 | 6:54 | 7:15 |
| Jun | 12.4 | 6:55 | 7:22 |
| Jul | 12.4 | 7:01 | 7:26 |
| Aug | 12.3 | 7:04 | 7:20 |
| Sep | 12.0 | 7:01 | 7:04 |
| Oct | 11.8 | 6:58 | 6:48 |
| Nov | 11.6 | 7:04 | 6:43 |
| Dec | 11.6 | 7:18 | 6:51 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Wau averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 19 days.
The sunnier stretch runs 5.1 months, from around Oct 30 to Apr 3. The sunniest month is December, with roughly 18 sunny days (bright).
The greyest month is August, down near 2 sunny days — about 88% fewer than the December peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 17 | 14 | 11 | 7 | 6 | 5 | 3 | 2 | 4 | 6 | 14 | 18 |
| Sky | Bright | Mixed | Mixed | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 17 | Bright |
| Feb | 14 | Mixed |
| Mar | 11 | Mixed |
| Apr | 7 | Gloomy |
| May | 6 | Gloomy |
| Jun | 5 | Gloomy |
| Jul | 3 | Gloomy |
| Aug | 2 | Gloomy |
| Sep | 4 | Gloomy |
| Oct | 6 | Gloomy |
| Nov | 14 | Mixed |
| Dec | 18 | Bright |
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 Wau, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 7.4 months, from around April 6 to November 16. 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 17 to April 5, and February is the most comfortable month — the air is dry or comfortable 94% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 95 | 89 | 54 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 81 |
| Comfortable (%) | 3 | 5 | 12 | 6 | 0 | 0 | 0 | 0 | 0 | 1 | 15 | 9 |
| Humid (%) | 2 | 4 | 16 | 15 | 1 | 0 | 0 | 0 | 0 | 2 | 19 | 7 |
| Muggy (%) | 0 | 2 | 15 | 41 | 28 | 20 | 20 | 10 | 4 | 16 | 30 | 2 |
| Oppressive (%) | 0 | 0 | 4 | 27 | 70 | 80 | 80 | 90 | 96 | 81 | 18 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 95 | 3 | 2 | 0 | 0 |
| Feb | 89 | 5 | 4 | 2 | 0 |
| Mar | 54 | 12 | 16 | 15 | 4 |
| Apr | 11 | 6 | 15 | 41 | 27 |
| May | 0 | 0 | 1 | 28 | 70 |
| Jun | 0 | 0 | 0 | 20 | 80 |
| Jul | 0 | 0 | 0 | 20 | 80 |
| Aug | 0 | 0 | 0 | 10 | 90 |
| Sep | 0 | 0 | 0 | 4 | 96 |
| Oct | 0 | 1 | 2 | 16 | 81 |
| Nov | 18 | 15 | 19 | 30 | 18 |
| Dec | 81 | 9 | 7 | 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 Wau is typically calm, near 8 km/h, and varies moderately with the seasons.
The windier part of the year lasts 5.9 months, from around Nov 22 to May 19. The windiest month is January, averaging about 10 km/h (calm).
The calmer part of the year runs from around May 20 to Nov 21, with September the calmest month at about 5 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 9 | 9 | 8 | 7 | 6 | 6 | 5 | 6 | 7 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 10 | calm |
| Feb | 10 | calm |
| Mar | 9 | calm |
| Apr | 9 | calm |
| May | 8 | calm |
| Jun | 7 | calm |
| Jul | 6 | calm |
| Aug | 6 | calm |
| Sep | 5 | calm |
| Oct | 6 | calm |
| Nov | 7 | calm |
| Dec | 9 | calm |
Hazard calendar for Wau
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Wau's monsoon runs May–October, when most of the year's rain falls.
Best time to visit Wau
To characterize how pleasant the weather is in Wau throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid September, Wau 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 Wau for general outdoor tourist activities run from mid June to late September and again from mid October to mid January, with a peak score in the second 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) | 3.0 | 1.9 | 1.3 | 1.7 | 2.4 | 3.0 | 3.3 | 3.3 | 3.1 | 3.1 | 3.6 | 3.3 |
| Rating | poor | poor | poor | poor | poor | poor | poor | poor | poor | poor | fair | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 3.0 | poor |
| Feb | 1.9 | poor |
| Mar | 1.3 | poor |
| Apr | 1.7 | poor |
| May | 2.4 | poor |
| Jun | 3.0 | poor |
| Jul | 3.3 | poor |
| Aug | 3.3 | poor |
| Sep | 3.1 | poor |
| Oct | 3.1 | poor |
| Nov | 3.6 | fair |
| Dec | 3.3 | poor |
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 Wau for hot-weather activities is from late October to early February, with a peak score in the third week of November.
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 Wau, 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 March (highs near 38°C), the essentials are light clothes and sun protection. In the cold season around August (highs near 30°C), pack light clothes, rain gear and sun protection.
In March, Wau sees daytime highs around 38°C and nights near 26°C. Pack light clothes and sun protection. About 4 days see rain.
UV index (midday) in Wau 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 Wau peaks around March 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 9 (very 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) | 11 | 11 | 14 | 13 | 11 | 11 | 11 | 13 | 12 | 12 | 9 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 11 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Average hourly UV index in Wau
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 March the burn window is concentrated in the middle of the day: about 8 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) | 7.5 | 7.5 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7.5 | 7 | 7 |
| UV ≥ 6 (h/day) | 5.5 | 5.5 | 6.5 | 6 | 5.5 | 5.5 | 6 | 6.5 | 6 | 5.5 | 4.5 | 4.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 7.5 | 5.5 |
| Feb | 7.5 | 5.5 |
| Mar | 8 | 6.5 |
| Apr | 8 | 6 |
| May | 8 | 5.5 |
| Jun | 8 | 5.5 |
| Jul | 8 | 6 |
| Aug | 8 | 6.5 |
| Sep | 8 | 6 |
| Oct | 7.5 | 5.5 |
| Nov | 7 | 4.5 |
| Dec | 7 | 4.5 |
Air quality in Wau 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 Wau is worst in November — around 59 µg/m³ PM2.5 (unhealthy), about 5.9× the cleanest month (August, 10 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) | 23 | 30 | 37 | 22 | 11 | 14 | 14 | 10 | 10 | 15 | 59 | 52 |
| Level | Moderate | Moderate | Poor | Moderate | Good | Moderate | Moderate | Good | Good | Moderate | Unhealthy | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 23 | Moderate |
| Feb | 30 | Moderate |
| Mar | 37 | Poor |
| Apr | 22 | Moderate |
| May | 11 | Good |
| Jun | 14 | Moderate |
| Jul | 14 | Moderate |
| Aug | 10 | Good |
| Sep | 10 | Good |
| Oct | 15 | Moderate |
| Nov | 59 | Unhealthy |
| Dec | 52 | Poor |
Growing season
Wau 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. Wau banks about 6,770 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 587 | 575 | 673 | 635 | 599 | 529 | 508 | 499 | 498 | 536 | 549 | 582 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 587 |
| Feb | 575 |
| Mar | 673 |
| Apr | 635 |
| May | 599 |
| Jun | 529 |
| Jul | 508 |
| Aug | 499 |
| Sep | 498 |
| Oct | 536 |
| Nov | 549 |
| Dec | 582 |
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.
Wau receives about 5.9 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.1 and 6.6 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.2 | 6.5 | 6.5 | 6.2 | 5.8 | 5.5 | 5.2 | 5.3 | 5.8 | 5.8 | 5.8 | 5.9 |
| Level | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.2 | Intense |
| Feb | 6.5 | Intense |
| Mar | 6.5 | Intense |
| Apr | 6.2 | Intense |
| May | 5.8 | Bright |
| Jun | 5.5 | Bright |
| Jul | 5.2 | Bright |
| Aug | 5.3 | Bright |
| Sep | 5.8 | Bright |
| Oct | 5.8 | Bright |
| Nov | 5.8 | Bright |
| Dec | 5.9 | Bright |
Where is Wau?
Wau sits at 7.7°N, 28.0°E, 440 m above sea level, in South Sudan. The nearest listed city is Kuacjok, 67 km away.
Topography around Wau
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Wau.
Within 3 km, the terrain around Wau has only modest variations in elevation — a maximum elevation change of 58 m around an average of 447 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 112 m; within 80 km, only modest variations in elevation — a maximum elevation change of 198 m.
The land around Wau is covered by artificial surfaces (50%) and grassland (34%) within 3 km, grassland (70%) within 16 km, and grassland (46%) and shrubs (38%) within 80 km.
South Sudan travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Prices
- ≈ 6% of US
- price level, 2021
- GDP per capita
- $1,080
- 2015
- Happiness
- 2.8 / 10
- World Happiness, 2019
- Homicide rate
- 14
- per 100k, 2012
- Road deaths
- 36.7
- per 100k/yr, 2019
- Income group
- Low
- 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 Wau (7.7011°, 27.9897°, elevation 440 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).