Mwanza climate — normals and trends
Mwanza (Tanzania) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.9 °C and it receives 1,918 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 February (23.2 °C on average) and the coldest is November (22.4 °C). Rainfall peaks in November.
Mwanza averages 0 frost days, 0 hot days (≥ 30 °C) and 215 rainy days per year.
Mwanza has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.1 °C (on 1 March 2025) and the coldest 16.1 °C (on 6 July 1953).
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
MwanzaMwanza
- coords
- -2.52°, 32.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.9°C
Average daily high
25.1°C
Average daily low
20.5°C
Annual rainfall
1,918mm
Sunshine / day
10.8h
Mean relative humidity
70%
Average peak wind
17.6km/h
Seasonal range
0.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
215 d/yr
Annual snowfall
0.0 cm
Average feels-like high
27.8 °C
Average feels-like low
20.8 °C
Average peak gust
29.4 km/h
Tropical nights (≥ 20 °C)
247 d/yr
Solar radiation
21.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.69 · 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
30.1 °C
1 March 2025
Coldest day
16.1 °C
6 July 1953
Wettest day
155 mm
17 April 1959
Windiest day
35.2 km/h
29 July 1994
Strongest gust
54.7 km/h
29 July 1994
Hottest feels-like
35.8 °C
25 February 2005
Coldest feels-like
12.2 °C
11 July 1944
Sunniest day
12.1 h
8 November 2021
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 | 25.6 °C | +0.9 °C | 70 mm | -107 mm |
| Feb | 27.5 °C | +2.1 °C | 14 mm | -144 mm |
| Mar | 26.5 °C | +1.1 °C | 159 mm | -71 mm |
| Apr | 25.8 °C | +0.8 °C | 225 mm | -21 mm |
| May | 25.8 °C | +0.5 °C | 77 mm | -36 mm |
| Jun | 25.9 °C | +0.3 °C | 15 mm | -17 mm |
| Jul | 26.0 °C | +0.5 °C | 7 mm | -10 mm |
| Aug | 25.3 °C | -0.1 °C | 84 mm | +35 mm |
| Sep | 26.0 °C | +0.6 °C | 57 mm | -62 mm |
| Oct | 24.9 °C | -0.1 °C | 206 mm | -8 mm |
| Nov | 25.6 °C | +1.3 °C | 117 mm | -184 mm |
| Dec | 25.4 °C | +1.2 °C | 176 mm | -85 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 Mwanza?
Mwanza has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.9 °C and it receives 1,918 mm of precipitation per year.
What is the hottest day ever recorded in Mwanza?
The hottest day measured in Mwanza between 1940 and 2025 was 1 March 2025, reaching 30.1 °C.
What is the coldest day in Mwanza?
The coldest day measured in Mwanza between 1940 and 2025 was 6 July 1953, at 16.1 °C.
Does it snow in Mwanza?
Almost never: Mwanza sees virtually no snow, with about 0 frost days per year.
Has the climate of Mwanza warmed?
Yes: Mwanza warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mwanza?
The wettest day measured in Mwanza between 1940 and 2025 was 17 April 1959, with 155 mm of rain in 24 hours.
What was the windiest day in Mwanza?
The windiest day measured in Mwanza between 1940 and 2025 was 29 July 1994, with winds reaching 35.2 km/h.
What is the warmest month in Mwanza?
The warmest month in Mwanza is February (23.2 °C on average); the coldest is November (22.4 °C).
How much does it rain in Mwanza?
Mwanza receives on average 1,918 mm of precipitation per year, spread over about 215 rainy days.
Is it sunny in Mwanza?
Mwanza gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Mwanza?
Yes: Mwanza has on average 247 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mwanza?
In Mwanza, between 1940 and 2025, the highest apparent temperature reached 35.8 °C on 25 February 2005, and the lowest was 12.2 °C on 11 July 1944.
Compare Mwanza with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mwanza