Tonj in Spring
In spring (March, April and May), Tonj sees average daytime highs around 36°C and overnight lows near 25°C, with 207 mm of rain over about 38 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 38°C in early March to 33°C by late May. The sky is clear or mostly clear about 22% of the time across spring, and the air most often feels oppressive.
Spring is Tonj's weakest season of the year to visit on our travel score. For the whole year in context, see Tonj's year-round climate.
- Avg daytime high
- 36°C
- 2nd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 207 mm
- 38 wet days
- Avg wind
- 8 km/h
- Travel score
- 1.9
- weakest season of the year
- Months
- Mar · Apr · May
Temperature in Tonj in Spring
Over the season highs ease from about 38°C in early March to 33°C by late May.
A typical spring day in Tonj reaches about 36°C and drops to 25°C overnight. The warmest of the three months is March, the coolest May.
How spring really feels in Tonj
Once humidity and wind are folded in, spring brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Tonj weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 36° / 23° | 1 | 0.3 | 11.6 | 2.8 |
| Feb | 37° / 24° | 3 | 0.7 | 11.8 | 1.8 |
| Mar | 38° / 26° | 21 | 4.5 | 12 | 1.4 |
| Apr | 36° / 26° | 63 | 13.6 | 12.2 | 1.8 |
| May | 34° / 25° | 122 | 20 | 12.3 | 2.5 |
| Jun | 32° / 23° | 127 | 20.3 | 12.4 | 3.1 |
| Jul | 30° / 23° | 163 | 22.9 | 12.4 | 3.4 |
| Aug | 30° / 22° | 178 | 23.6 | 12.2 | 3.3 |
| Sep | 31° / 22° | 152 | 22.4 | 12 | 3.2 |
| Oct | 32° / 23° | 122 | 20.2 | 11.8 | 3.2 |
| Nov | 33° / 23° | 23 | 5.7 | 11.7 | 3.6 |
| Dec | 35° / 23° | 2 | 0.4 | 11.6 | 3.3 |
Cloud cover in Spring
The sky is clear or mostly clear about 22% of the time across spring.
Chance of precipitation in Spring
Tonj gets around 207 mm of rain over 38 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 8 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 48 min in early March to 12 h 24 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.0 kWh/m².
Hazard calendar for Tonj
In spring, Tonj overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Tonj's rainy season runs May–October, when most of the year's rain falls.
Is spring a good time to visit Tonj?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Tonj.
What to pack for Tonj in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Tonj sees daytime highs around 36°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 38 days see rain.
UV index in Tonj in Spring
Clear-sky midday UV across spring averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tonj peaks around March 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 | 10 | 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 | 10 | Very high |
| Dec | 9 | Very high |
Air quality in Tonj in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Tonj is worst in December — around 50 µg/m³ PM2.5 (poor), about 4.6× the cleanest month (August, 11 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) | 39 | 42 | 44 | 24 | 12 | 15 | 14 | 11 | 11 | 16 | 46 | 50 |
| Level | Poor | Poor | Poor | Moderate | Good | Moderate | Moderate | Good | Good | Moderate | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 39 | Poor |
| Feb | 42 | Poor |
| Mar | 44 | Poor |
| Apr | 24 | Moderate |
| May | 12 | Good |
| Jun | 15 | Moderate |
| Jul | 14 | Moderate |
| Aug | 11 | Good |
| Sep | 11 | Good |
| Oct | 16 | Moderate |
| Nov | 46 | Poor |
| Dec | 50 | Poor |
Where is Tonj?
Tonj sits at 7.3°N, 28.7°E, 444 m above sea level, in South Sudan. The nearest listed city is Wau, 89 km away.
Topography around Tonj
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tonj.
Within 3 km, the terrain around Tonj has only modest variations in elevation — a maximum elevation change of 21 m around an average of 437 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 73 m; within 80 km, only modest variations in elevation — a maximum elevation change of 176 m.
The land around Tonj is covered by grassland (79%) within 3 km, grassland (64%) and shrubs (23%) within 16 km, and grassland (53%) and shrubs (32%) 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 Tonj (7.2739°, 28.6775°, elevation 444 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.