Rulenge climate — normals and trends
Rulenge (Tanzania) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 20.4 °C and it receives 1,276 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 August (21.8 °C on average) and the coldest is December (19.5 °C). Rainfall peaks in April.
Rulenge averages 0 frost days, 9 hot days (≥ 30 °C) and 183 rainy days per year.
Rulenge has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.7 °C (on 25 September 1997) and the coldest 10.2 °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
RulengeKagera
- coords
- -2.72°, 30.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
20.4°C
Average daily high
26.2°C
Average daily low
15.6°C
Annual rainfall
1,276mm
Sunshine / day
10.6h
Mean relative humidity
71%
Average peak wind
10.9km/h
Seasonal range
2.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
183 d/yr
Annual snowfall
0.0 cm
Average feels-like high
27.7 °C
Average feels-like low
16.1 °C
Average peak gust
30.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.63 · 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
33.7 °C
25 September 1997
Coldest day
10.2 °C
8 June 1971
Wettest day
52 mm
1 May 2023
Windiest day
20.5 km/h
12 May 2007
Strongest gust
54.0 km/h
18 September 2007
Hottest feels-like
35.4 °C
23 February 2007
Coldest feels-like
7.4 °C
12 July 1944
Sunniest day
12.0 h
2 January 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 | 26.9 °C | +1.4 °C | 68 mm | -70 mm |
| Feb | 28.4 °C | +2.4 °C | 37 mm | -94 mm |
| Mar | 27.5 °C | +1.6 °C | 126 mm | -48 mm |
| Apr | 26.4 °C | +1.2 °C | 209 mm | +14 mm |
| May | 25.7 °C | +0.4 °C | 60 mm | -27 mm |
| Jun | 26.7 °C | +0.5 °C | 8 mm | +0 mm |
| Jul | 27.3 °C | +0.1 °C | 3 mm | +0 mm |
| Aug | 27.5 °C | -0.5 °C | 22 mm | +7 mm |
| Sep | 29.3 °C | +1.5 °C | 15 mm | -32 mm |
| Oct | 26.8 °C | +0.2 °C | 111 mm | -1 mm |
| Nov | 26.3 °C | +1.2 °C | 66 mm | -128 mm |
| Dec | 25.4 °C | +0.4 °C | 156 mm | -19 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 Rulenge?
Rulenge has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 20.4 °C and it receives 1,276 mm of precipitation per year.
What is the hottest day ever recorded in Rulenge?
The hottest day measured in Rulenge between 1940 and 2025 was 25 September 1997, reaching 33.7 °C.
What is the coldest day in Rulenge?
The coldest day measured in Rulenge between 1940 and 2025 was 8 June 1971, at 10.2 °C.
Does it snow in Rulenge?
Almost never: Rulenge sees virtually no snow, with about 0 frost days per year.
Has the climate of Rulenge warmed?
Yes: Rulenge warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rulenge?
The wettest day measured in Rulenge between 1940 and 2025 was 1 May 2023, with 52 mm of rain in 24 hours.
What was the windiest day in Rulenge?
The windiest day measured in Rulenge between 1940 and 2025 was 12 May 2007, with winds reaching 20.5 km/h.
What is the warmest month in Rulenge?
The warmest month in Rulenge is August (21.8 °C on average); the coldest is December (19.5 °C).
How much does it rain in Rulenge?
Rulenge receives on average 1,276 mm of precipitation per year, spread over about 183 rainy days.
Is it sunny in Rulenge?
Rulenge gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Rulenge?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Rulenge.
What was the most extreme apparent temperature in Rulenge?
In Rulenge, between 1940 and 2025, the highest apparent temperature reached 35.4 °C on 23 February 2007, and the lowest was 7.4 °C on 12 July 1944.
Compare Rulenge with another city
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Nearby cities
The climate around Rulenge