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
19402025 · 86 yrs
AwTropical savannaWarmest monthMarchColdest monthAugustWettest monthAugustDriest monthJanuary

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

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202541.1 °C23 February 202518.8 °C31 December 202528.6 °C640 mm3220
202442.6 °C13 March 202421.4 °C2 August 202429.8 °C673 mm3240
202341.0 °C6 March 202321.7 °C7 July 202329.7 °C598 mm3450
202241.0 °C5 March 202220.1 °C25 August 202228.9 °C616 mm3070
202141.3 °C12 February 202121.5 °C3 August 202129.3 °C646 mm3230
202041.5 °C4 March 202021.3 °C12 January 202028.6 °C807 mm2980
201942.1 °C22 March 201921.0 °C5 August 201928.7 °C963 mm2880
201841.0 °C8 February 201820.8 °C13 September 201829.0 °C670 mm3320
201742.1 °C11 March 201721.5 °C15 September 201729.2 °C774 mm3130
201641.8 °C29 February 201621.0 °C28 January 201629.7 °C639 mm3360
201542.6 °C10 March 201518.6 °C11 January 201529.1 °C767 mm3350
201440.8 °C20 March 201421.1 °C28 November 201428.7 °C818 mm3170
201341.7 °C25 February 201320.4 °C16 November 201328.6 °C821 mm3070
201240.8 °C14 February 201221.0 °C14 October 201228.2 °C910 mm2810
201140.1 °C12 April 201119.3 °C2 December 201128.0 °C888 mm3050
201041.5 °C2 February 201020.7 °C22 September 201028.4 °C1,010 mm3000
200940.9 °C7 March 200921.5 °C2 September 200928.8 °C775 mm3350
200840.2 °C4 March 200820.7 °C4 July 200828.1 °C921 mm3010
200741.0 °C8 March 200720.9 °C15 August 200728.4 °C914 mm2960
200640.5 °C26 January 200620.0 °C30 December 200628.0 °C1,000 mm2840
200543.4 °C26 February 200521.0 °C17 July 200528.9 °C841 mm3090
200441.6 °C25 March 200420.9 °C5 February 200428.4 °C864 mm3120
200341.9 °C6 March 200321.0 °C11 August 200328.3 °C978 mm2950
200241.0 °C25 February 200219.5 °C13 January 200228.2 °C843 mm3200
200140.4 °C28 February 200119.4 °C8 January 200127.7 °C981 mm2980
200041.4 °C22 March 200020.7 °C3 July 200027.9 °C826 mm3030
199940.4 °C8 February 199920.7 °C20 August 199927.4 °C1,181 mm2570
199842.1 °C16 March 199820.5 °C15 January 199828.4 °C1,128 mm2900
199740.4 °C23 March 199720.8 °C24 January 199727.9 °C967 mm3080
199639.8 °C11 February 199621.0 °C15 August 199627.2 °C1,310 mm2460
199540.4 °C11 March 199520.8 °C12 July 199527.7 °C1,067 mm2520
199441.3 °C2 April 199420.5 °C13 December 199427.7 °C1,007 mm2480
199340.5 °C4 March 199319.9 °C7 February 199327.6 °C879 mm2880
199241.4 °C9 March 199218.4 °C5 January 199227.3 °C1,112 mm2580
199140.9 °C20 February 199120.6 °C24 October 199127.5 °C1,224 mm2550
199040.2 °C12 April 199020.8 °C19 July 199028.1 °C982 mm2980
198940.9 °C1 March 198918.9 °C21 January 198927.1 °C1,044 mm2710
198841.4 °C2 March 198821.1 °C16 August 198827.7 °C1,092 mm2650
198740.9 °C23 March 198720.3 °C5 January 198727.7 °C1,031 mm2760
198638.8 °C25 February 198617.8 °C7 December 198626.6 °C1,230 mm2230
198541.2 °C14 March 198520.5 °C1 September 198526.6 °C1,363 mm1870
198440.6 °C20 February 198419.2 °C12 December 198427.0 °C1,063 mm2360
198340.7 °C29 March 198315.9 °C28 December 198327.4 °C1,242 mm2470
198239.9 °C24 March 198219.3 °C5 December 198227.1 °C996 mm2460
198140.0 °C1 March 198119.9 °C24 November 198127.3 °C1,292 mm2600
198041.3 °C18 March 198018.6 °C14 December 198027.3 °C1,153 mm2420
197939.3 °C23 March 197919.0 °C31 January 197927.2 °C1,269 mm2930
197839.7 °C6 February 197818.7 °C14 December 197826.7 °C1,266 mm2250
197739.1 °C16 March 197720.0 °C1 November 197726.8 °C1,148 mm2570
197638.2 °C9 March 197619.4 °C30 November 197626.5 °C1,230 mm2260
197539.4 °C25 March 197518.3 °C8 December 197526.4 °C1,340 mm2100
197440.5 °C13 March 197419.8 °C7 December 197426.7 °C1,296 mm2090
197340.9 °C29 March 197320.1 °C10 September 197327.4 °C1,189 mm2470
197240.6 °C31 March 197218.3 °C2 January 197227.0 °C1,241 mm2540
197141.3 °C5 March 197117.4 °C21 December 197126.7 °C1,118 mm2230
197040.9 °C28 February 197018.1 °C14 September 197027.0 °C1,257 mm2560
196939.2 °C7 February 196920.0 °C30 January 196927.2 °C1,319 mm2840
196838.3 °C19 February 196817.5 °C18 January 196826.7 °C1,193 mm2660
196740.0 °C10 March 196719.1 °C22 December 196726.5 °C1,318 mm2440
196638.9 °C16 May 196619.6 °C2 March 196627.4 °C1,057 mm2530
196539.4 °C27 May 196518.6 °C20 December 196527.5 °C976 mm2490
196439.9 °C31 March 196419.4 °C30 December 196427.3 °C1,170 mm2120
196338.4 °C24 March 196319.7 °C23 November 196326.0 °C1,282 mm2100
196238.5 °C15 February 196216.2 °C4 January 196225.8 °C1,476 mm2420
196140.7 °C8 March 196117.8 °C28 December 196126.5 °C1,485 mm2320
196038.9 °C17 March 196020.1 °C20 January 196026.8 °C1,353 mm2810
195941.3 °C16 March 195918.8 °C29 December 195926.8 °C1,471 mm2670
195841.2 °C4 April 195818.1 °C17 February 195827.0 °C1,447 mm2660
195738.8 °C20 February 195717.5 °C6 February 195726.4 °C1,423 mm2640
195639.4 °C10 March 195618.2 °C18 January 195626.4 °C1,276 mm2390
195539.2 °C20 February 195518.9 °C13 December 195526.4 °C1,436 mm2430
195440.2 °C7 February 195419.5 °C9 December 195426.4 °C1,215 mm2060
195338.1 °C29 March 195317.7 °C19 December 195325.6 °C1,608 mm2340
195238.7 °C27 January 195220.5 °C12 August 195226.2 °C1,574 mm2290
195139.4 °C6 March 195119.0 °C18 December 195126.3 °C1,343 mm2560
195039.9 °C5 March 195018.9 °C7 December 195025.6 °C1,838 mm2150
194939.7 °C6 March 194917.7 °C25 December 194926.0 °C1,551 mm2320
194839.3 °C3 April 194818.9 °C26 December 194826.5 °C1,231 mm1950
194738.1 °C9 March 194719.1 °C21 July 194726.7 °C1,051 mm2240
194641.5 °C30 March 194616.4 °C11 December 194627.0 °C1,205 mm1870
194539.7 °C21 February 194519.9 °C6 July 194527.0 °C963 mm2290
194440.0 °C1 March 194420.5 °C6 December 194427.6 °C792 mm2630
194340.9 °C13 March 194319.8 °C9 August 194327.1 °C1,440 mm1920
194239.9 °C5 February 194220.1 °C17 July 194227.5 °C815 mm2780
194141.7 °C28 March 194119.4 °C17 November 194127.5 °C783 mm2480
194038.0 °C1 March 194019.6 °C12 February 194026.3 °C1,218 mm1880

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

Average daily high
34.2 °C
+1.7 °C
Hot days (≥ 30 °C)
322 d/yr
+57
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
640 mm
-456 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan37.3 °C+1.9 °C0 mm-5 mm
Feb39.6 °C+2.9 °C0 mm-11 mm
Mar37.9 °C+1.5 °C3 mm-37 mm
Apr35.9 °C+1.3 °C40 mm-40 mm
May34.6 °C+2.5 °C59 mm-75 mm
Jun33.1 °C+2.5 °C46 mm-92 mm
Jul30.4 °C+0.9 °C116 mm-38 mm
Aug29.5 °C0.0 °C189 mm+31 mm
Sep31.1 °C+1.1 °C100 mm-42 mm
Oct32.0 °C+1.6 °C72 mm-79 mm
Nov34.8 °C+3.2 °C13 mm-56 mm
Dec34.8 °C+1.2 °C3 mm-11 mm

The year's extremes

Hottest day
41.1 °C
23 Feb 2025
Coldest day
18.8 °C
31 Dec 2025
Wettest day
22.4 mm
7 Apr 2025
Windiest day
27.5 km/h
31 Mar 2025
Strongest gust
56.5 km/h
31 Mar 2025
Hottest feels-like
42.3 °C
4 Apr 2025
Coldest feels-like
17.6 °C
31 Dec 2025
Sunniest day
12.0 h
18 Mar 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

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

Other cities — South Sudan