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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.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours 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 (mph) | 1.6 | 1.6 | 1.5 | 1.4 | 1.4 | 1.4 | 1.5 | 1.5 | 1.5 | 1.6 | 1.7 | 1.7 |
| 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 (mph) | 1.6 | 1.6 | 1.5 | 1.4 | 1.4 | 1.4 |
| 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 (mph) | 1.5 | 1.5 | 1.5 | 1.6 | 1.7 | 1.7 |
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.