Bonga climate — normals and trends
Bonga (Ethiopia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 16.8 °C and it receives 3,135 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 March (18.0 °C on average) and the coldest is July (15.8 °C). Rainfall peaks in October.
Bonga averages 0 frost days, 0 hot days (≥ 30 °C) and 308 rainy days per year.
Bonga has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.4 °C (on 27 March 1941) and the coldest 5.4 °C (on 31 December 2011).
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
BongaSouth West Ethiopia Peoples' Region
- coords
- 7.29°, 36.24°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.8°C
Average daily high
22.7°C
Average daily low
12.2°C
Annual rainfall
3,135mm
Sunshine / day
9.8h
Mean relative humidity
84%
Average peak wind
6.4km/h
Seasonal range
2.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
308 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.2 °C
Average feels-like low
12.1 °C
Average peak gust
24.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.83 · 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
30.4 °C
27 March 1941
Coldest day
5.4 °C
31 December 2011
Wettest day
124 mm
11 October 1971
Windiest day
13.8 km/h
28 March 2013
Strongest gust
50.0 km/h
13 August 1943
Hottest feels-like
34.2 °C
20 April 2019
Coldest feels-like
2.9 °C
8 January 1944
Sunniest day
12.2 h
10 May 1972
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 | 24.9 °C | +1.3 °C | 55 mm | -56 mm |
| Feb | 26.0 °C | +1.5 °C | 28 mm | -110 mm |
| Mar | 25.4 °C | +0.8 °C | 333 mm | +59 mm |
| Apr | 24.5 °C | +0.7 °C | 299 mm | -62 mm |
| May | 23.8 °C | +1.2 °C | 322 mm | -61 mm |
| Jun | 23.5 °C | +1.9 °C | 192 mm | -46 mm |
| Jul | 21.8 °C | +1.3 °C | 200 mm | -41 mm |
| Aug | 21.1 °C | +0.3 °C | 238 mm | -14 mm |
| Sep | 22.7 °C | +1.1 °C | 265 mm | -74 mm |
| Oct | 22.7 °C | +0.2 °C | 494 mm | +72 mm |
| Nov | 23.7 °C | +0.8 °C | 158 mm | -82 mm |
| Dec | 23.6 °C | +0.6 °C | 95 mm | -43 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 Bonga?
Bonga has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 3,135 mm of precipitation per year.
What is the hottest day ever recorded in Bonga?
The hottest day measured in Bonga between 1940 and 2025 was 27 March 1941, reaching 30.4 °C.
What is the coldest day in Bonga?
The coldest day measured in Bonga between 1940 and 2025 was 31 December 2011, at 5.4 °C.
Does it snow in Bonga?
Almost never: Bonga sees virtually no snow, with about 0 frost days per year.
Has the climate of Bonga warmed?
Yes: Bonga warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bonga?
The wettest day measured in Bonga between 1940 and 2025 was 11 October 1971, with 124 mm of rain in 24 hours.
What was the windiest day in Bonga?
The windiest day measured in Bonga between 1940 and 2025 was 28 March 2013, with winds reaching 13.8 km/h.
What is the warmest month in Bonga?
The warmest month in Bonga is March (18.0 °C on average); the coldest is July (15.8 °C).
How much does it rain in Bonga?
Bonga receives on average 3,135 mm of precipitation per year, spread over about 308 rainy days.
Is it sunny in Bonga?
Bonga gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Bonga?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Bonga.
What was the most extreme apparent temperature in Bonga?
In Bonga, between 1940 and 2025, the highest apparent temperature reached 34.2 °C on 20 April 2019, and the lowest was 2.9 °C on 8 January 1944.
Compare Bonga with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bonga