Bor climate — normals and trends
Bor (South Sudan) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.5 °C and it receives 1,096 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is March (30.6 °C on average) and the coldest is August (25.3 °C). Rainfall peaks in August.
Bor averages 0 frost days, 265 hot days (≥ 30 °C) and 163 rainy days per year.
Bor has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.4 °C (on 26 February 2005) and the coldest 15.9 °C (on 28 December 1983).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BorJonglei
- coords
- 6.21°, 31.56°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.5°C
Average daily high
32.5°C
Average daily low
23.6°C
Annual rainfall
1,096mm
Sunshine / day
10.5h
Mean relative humidity
65%
Average peak wind
12.2km/h
Seasonal range
5.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
265 d/yr
Rainy days (≥ 1 mm)
163 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.1 °C
Average feels-like low
26.0 °C
Average peak gust
30.3 km/h
Tropical nights (≥ 20 °C)
362 d/yr
Solar radiation
19.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.70 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
43.4 °C
26 February 2005
Coldest day
15.9 °C
28 December 1983
Wettest day
105 mm
9 March 1950
Windiest day
29.7 km/h
10 March 2015
Strongest gust
63.0 km/h
16 March 2021
Hottest feels-like
44.8 °C
28 March 2016
Coldest feels-like
13.8 °C
5 February 1957
Sunniest day
12.0 h
22 March 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 37.3 °C | +1.9 °C | 0 mm | -5 mm |
| Feb | 39.6 °C | +2.9 °C | 0 mm | -11 mm |
| Mar | 37.9 °C | +1.5 °C | 3 mm | -37 mm |
| Apr | 35.9 °C | +1.3 °C | 40 mm | -40 mm |
| May | 34.6 °C | +2.5 °C | 59 mm | -75 mm |
| Jun | 33.1 °C | +2.5 °C | 46 mm | -92 mm |
| Jul | 30.4 °C | +0.9 °C | 116 mm | -38 mm |
| Aug | 29.5 °C | 0.0 °C | 189 mm | +31 mm |
| Sep | 31.1 °C | +1.1 °C | 100 mm | -42 mm |
| Oct | 32.0 °C | +1.6 °C | 72 mm | -79 mm |
| Nov | 34.8 °C | +3.2 °C | 13 mm | -56 mm |
| Dec | 34.8 °C | +1.2 °C | 3 mm | -11 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Bor?
Bor has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.5 °C and it receives 1,096 mm of precipitation per year.
What is the hottest day ever recorded in Bor?
The hottest day measured in Bor between 1940 and 2025 was 26 February 2005, reaching 43.4 °C.
What is the coldest day in Bor?
The coldest day measured in Bor between 1940 and 2025 was 28 December 1983, at 15.9 °C.
Does it snow in Bor?
Almost never: Bor sees virtually no snow, with about 0 frost days per year.
Has the climate of Bor warmed?
Yes: Bor warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bor?
The wettest day measured in Bor between 1940 and 2025 was 9 March 1950, with 105 mm of rain in 24 hours.
What was the windiest day in Bor?
The windiest day measured in Bor between 1940 and 2025 was 10 March 2015, with winds reaching 29.7 km/h.
What is the warmest month in Bor?
The warmest month in Bor is March (30.6 °C on average); the coldest is August (25.3 °C).
How much does it rain in Bor?
Bor receives on average 1,096 mm of precipitation per year, spread over about 163 rainy days.
Is it sunny in Bor?
Bor gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Bor?
Yes: Bor has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bor?
In Bor, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 28 March 2016, and the lowest was 13.8 °C on 5 February 1957.
Compare Bor with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bor