Kayonza climate — normals and trends
Kayonza (Rwanda) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 21.3 °C and it receives 805 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 (22.3 °C on average) and the coldest is November (20.6 °C). Rainfall peaks in April.
Kayonza averages 0 frost days, 8 hot days (≥ 30 °C) and 166 rainy days per year.
Kayonza has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.1 °C (on 23 February 2005) and the coldest 12.3 °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
KayonzaEastern Province
- coords
- -1.95°, 30.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.3°C
Average daily high
26.1°C
Average daily low
17.3°C
Annual rainfall
805mm
Sunshine / day
10.6h
Mean relative humidity
72%
Average peak wind
11.1km/h
Seasonal range
1.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
166 d/yr
Annual snowfall
0.0 cm
Average feels-like high
27.7 °C
Average feels-like low
18.5 °C
Average peak gust
28.8 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
19.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.56 · 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
34.1 °C
23 February 2005
Coldest day
12.3 °C
6 July 1953
Wettest day
53 mm
19 April 2020
Windiest day
22.3 km/h
13 August 1943
Strongest gust
48.6 km/h
23 October 2018
Hottest feels-like
35.1 °C
25 February 2005
Coldest feels-like
10.4 °C
6 July 1953
Sunniest day
12.0 h
2 January 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 | 27.3 °C | +1.5 °C | 30 mm | -38 mm |
| Feb | 29.1 °C | +2.8 °C | 16 mm | -55 mm |
| Mar | 27.9 °C | +1.9 °C | 72 mm | -26 mm |
| Apr | 26.1 °C | +0.9 °C | 139 mm | +11 mm |
| May | 25.6 °C | +0.4 °C | 66 mm | -17 mm |
| Jun | 27.0 °C | +0.8 °C | 10 mm | -2 mm |
| Jul | 27.8 °C | +0.7 °C | 2 mm | -2 mm |
| Aug | 27.3 °C | -0.4 °C | 28 mm | +11 mm |
| Sep | 28.7 °C | +1.6 °C | 18 mm | -28 mm |
| Oct | 26.6 °C | +0.4 °C | 95 mm | +12 mm |
| Nov | 26.0 °C | +1.0 °C | 65 mm | -43 mm |
| Dec | 25.6 °C | +0.5 °C | 51 mm | -35 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 Kayonza?
Kayonza has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 21.3 °C and it receives 805 mm of precipitation per year.
What is the hottest day ever recorded in Kayonza?
The hottest day measured in Kayonza between 1940 and 2025 was 23 February 2005, reaching 34.1 °C.
What is the coldest day in Kayonza?
The coldest day measured in Kayonza between 1940 and 2025 was 6 July 1953, at 12.3 °C.
Does it snow in Kayonza?
Almost never: Kayonza sees virtually no snow, with about 0 frost days per year.
Has the climate of Kayonza warmed?
Yes: Kayonza warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kayonza?
The wettest day measured in Kayonza between 1940 and 2025 was 19 April 2020, with 53 mm of rain in 24 hours.
What was the windiest day in Kayonza?
The windiest day measured in Kayonza between 1940 and 2025 was 13 August 1943, with winds reaching 22.3 km/h.
What is the warmest month in Kayonza?
The warmest month in Kayonza is August (22.3 °C on average); the coldest is November (20.6 °C).
How much does it rain in Kayonza?
Kayonza receives on average 805 mm of precipitation per year, spread over about 166 rainy days.
Is it sunny in Kayonza?
Kayonza gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Kayonza?
Yes: Kayonza has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kayonza?
In Kayonza, between 1940 and 2025, the highest apparent temperature reached 35.1 °C on 25 February 2005, and the lowest was 10.4 °C on 6 July 1953.
Compare Kayonza with another city
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Nearby cities
The climate around Kayonza