Basotu climate — normals and trends
Basotu (Tanzania) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 19.5 °C and it receives 1,523 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 October (21.2 °C on average) and the coldest is July (18.0 °C). Rainfall peaks in March.
Basotu averages 0 frost days, 3 hot days (≥ 30 °C) and 120 rainy days per year.
Basotu has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.2 °C (on 16 November 1983) and the coldest 8.6 °C (on 8 June 1971).
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
BasotuManyara
- coords
- -4.37°, 35.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.5°C
Average daily high
25.2°C
Average daily low
14.6°C
Annual rainfall
1,523mm
Sunshine / day
11.2h
Mean relative humidity
65%
Average peak wind
16.1km/h
Seasonal range
3.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.2 °C
Average feels-like low
13.7 °C
Average peak gust
35.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
22.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.52 · 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
32.2 °C
16 November 1983
Coldest day
8.6 °C
8 June 1971
Wettest day
173 mm
12 November 1972
Windiest day
33.8 km/h
30 May 2003
Strongest gust
67.7 km/h
1 October 1966
Hottest feels-like
33.6 °C
3 March 1988
Coldest feels-like
4.5 °C
11 July 1944
Sunniest day
12.3 h
8 December 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 24.7 °C | +0.2 °C | 190 mm | -74 mm |
| Feb | 26.7 °C | +1.7 °C | 77 mm | -144 mm |
| Mar | 25.6 °C | +0.7 °C | 303 mm | +9 mm |
| Apr | 25.2 °C | +0.9 °C | 160 mm | -69 mm |
| May | 24.2 °C | +0.2 °C | 43 mm | -4 mm |
| Jun | 24.2 °C | 0.0 °C | 11 mm | +4 mm |
| Jul | 24.1 °C | -0.1 °C | 1 mm | 0 mm |
| Aug | 25.3 °C | +0.1 °C | 2 mm | +0 mm |
| Sep | 27.6 °C | +1.0 °C | 1 mm | -3 mm |
| Oct | 27.8 °C | +0.1 °C | 14 mm | -8 mm |
| Nov | 29.3 °C | +2.6 °C | 10 mm | -134 mm |
| Dec | 26.0 °C | +1.1 °C | 263 mm | -26 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 Basotu?
Basotu has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 19.5 °C and it receives 1,523 mm of precipitation per year.
What is the hottest day ever recorded in Basotu?
The hottest day measured in Basotu between 1940 and 2025 was 16 November 1983, reaching 32.2 °C.
What is the coldest day in Basotu?
The coldest day measured in Basotu between 1940 and 2025 was 8 June 1971, at 8.6 °C.
Does it snow in Basotu?
Almost never: Basotu sees virtually no snow, with about 0 frost days per year.
Has the climate of Basotu warmed?
Yes: Basotu warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Basotu?
The wettest day measured in Basotu between 1940 and 2025 was 12 November 1972, with 173 mm of rain in 24 hours.
What was the windiest day in Basotu?
The windiest day measured in Basotu between 1940 and 2025 was 30 May 2003, with winds reaching 33.8 km/h.
What is the warmest month in Basotu?
The warmest month in Basotu is October (21.2 °C on average); the coldest is July (18.0 °C).
How much does it rain in Basotu?
Basotu receives on average 1,523 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Basotu?
Basotu gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Basotu?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Basotu.
What was the most extreme apparent temperature in Basotu?
In Basotu, between 1940 and 2025, the highest apparent temperature reached 33.6 °C on 3 March 1988, and the lowest was 4.5 °C on 11 July 1944.
Compare Basotu with another city
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Nearby cities
The climate around Basotu