Jimma, Ethiopia climate

Csb Warm-summer Mediterranean

Jimma has a remarkably steady mild-temperate climate (Warm-summer Mediterranean, Köppen Csb). The hottest month is March with an average daily high near 27°C, while the coldest is November averaging around 11°C at night. Precipitation totals about 1874 mm a year and is strongly seasonal — September alone averages 295 mm while December barely receives 30 mm.

☀️ Summers

Warm

Highs near 27°C in March.

❄️ Winters

Mild

Lows near 11°C in November.

🌧️ Rain

Very wet

About 1874 mm of rain a year.

Wettest in September

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Jimma climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	25	27	27	24	23	21	21	21	21	22	22	23
Avg temp (°C)	18	20	21	20	19	17	17	17	17	17	17	17
Avg low (°C)	12	14	15	15	15	14	13	13	13	13	11	11
Precipitation (mm)	35	39	96	180	266	217	227	245	295	179	65	30

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	25	27	27	24	23	21
Avg temp (°C)	18	20	21	20	19	17
Avg low (°C)	12	14	15	15	15	14
Precipitation (mm)	35	39	96	180	266	217

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	21	21	21	22	22	23
Avg temp (°C)	17	17	17	17	17	17
Avg low (°C)	13	13	13	13	11	11
Precipitation (mm)	227	245	295	179	65	30

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with high ≥ 32°C (days)	—	0.2	0.3	—	—	—	—	—	—	—	—	—

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with high ≥ 32°C (days)	—	0.2	0.3	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with high ≥ 32°C (days)	—	—	—	—	—	—

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	54	61	70	77	77	80	87	86	78	64	53	46
Relative humidity (%)	63	59	65	78	85	88	89	88	87	80	72	67
Wind speed (m/s)	0.7	0.7	0.7	0.6	0.6	0.6	0.7	0.7	0.7	0.7	0.7	0.7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	54	61	70	77	77	80
Relative humidity (%)	63	59	65	78	85	88
Wind speed (m/s)	0.7	0.7	0.7	0.6	0.6	0.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	87	86	78	64	53	46
Relative humidity (%)	89	88	87	80	72	67
Wind speed (m/s)	0.7	0.7	0.7	0.7	0.7	0.7

Methodology & sources

Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →