Serowe climate — normals and trends
Serowe (Botswana) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 20.4 °C and it receives 420 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 January (24.2 °C on average) and the coldest is July (13.7 °C). Rainfall peaks in January.
Serowe averages 0 frost days, 113 hot days (≥ 30 °C) and 66 rainy days per year.
Serowe has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.8 °C (on 14 January 1949) and the coldest -1.7 °C (on 15 June 1968).
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
SeroweCentral District
- coords
- -22.39°, 26.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
20.4°C
Average daily high
27.3°C
Average daily low
14.4°C
Annual rainfall
420mm
Sunshine / day
10.5h
Mean relative humidity
54%
Average peak wind
17.9km/h
Seasonal range
10.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
113 d/yr
Rainy days (≥ 1 mm)
66 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.8 °C
Average feels-like low
12.9 °C
Average peak gust
36.9 km/h
Tropical nights (≥ 20 °C)
47 d/yr
Solar radiation
20.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.11 · p = 0.002
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
40.8 °C
14 January 1949
Coldest day
-1.7 °C
15 June 1968
Wettest day
137 mm
20 January 2013
Windiest day
40.8 km/h
27 October 2024
Strongest gust
79.9 km/h
1 August 2006
Hottest feels-like
42.6 °C
7 January 2016
Coldest feels-like
-6.2 °C
21 July 1942
Sunniest day
13.4 h
13 December 1944
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 | 27.8 °C | -2.0 °C | 240 mm | +154 mm |
| Feb | 27.5 °C | -1.8 °C | 232 mm | +159 mm |
| Mar | 27.9 °C | -0.7 °C | 5 mm | -41 mm |
| Apr | 26.3 °C | -0.6 °C | 31 mm | +6 mm |
| May | 23.2 °C | -1.5 °C | 12 mm | +6 mm |
| Jun | 22.2 °C | +0.3 °C | 0 mm | -4 mm |
| Jul | 22.5 °C | +0.6 °C | 1 mm | -0 mm |
| Aug | 27.4 °C | +2.3 °C | 1 mm | -1 mm |
| Sep | 31.3 °C | +2.5 °C | 3 mm | -4 mm |
| Oct | 30.5 °C | -0.3 °C | 5 mm | -19 mm |
| Nov | 26.8 °C | -3.3 °C | 119 mm | +59 mm |
| Dec | 27.6 °C | -2.1 °C | 124 mm | +38 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 Serowe?
Serowe has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 20.4 °C and it receives 420 mm of precipitation per year.
What is the hottest day ever recorded in Serowe?
The hottest day measured in Serowe between 1940 and 2025 was 14 January 1949, reaching 40.8 °C.
What is the coldest day in Serowe?
The coldest day measured in Serowe between 1940 and 2025 was 15 June 1968, at -1.7 °C.
Does it snow in Serowe?
Almost never: Serowe sees virtually no snow, with about 0 frost days per year.
Has the climate of Serowe warmed?
Yes: Serowe warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Serowe?
The wettest day measured in Serowe between 1940 and 2025 was 20 January 2013, with 137 mm of rain in 24 hours.
What was the windiest day in Serowe?
The windiest day measured in Serowe between 1940 and 2025 was 27 October 2024, with winds reaching 40.8 km/h.
What is the warmest month in Serowe?
The warmest month in Serowe is January (24.2 °C on average); the coldest is July (13.7 °C).
How much does it rain in Serowe?
Serowe receives on average 420 mm of precipitation per year, spread over about 66 rainy days.
Is it sunny in Serowe?
Serowe gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Serowe?
Yes: Serowe has on average 47 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Serowe?
In Serowe, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 7 January 2016, and the lowest was -6.2 °C on 21 July 1942.
Compare Serowe with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Serowe