Climate averages 1991–2020
Jimma weather
by month.
See how the year changes. February has the highest average daily maximum; December has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: JanuaryFebruaryNovemberDecember
Long-term climate patterns, not a forecast for a particular trip.
Across the year Jimma averages a daytime high of 24.6°C and a nighttime low of 13.9°C, with about 1,535 mm of rain on roughly 212 days. February is the warmest month (average high 27.3°C) and July the coolest (22.3°C). September is the wettest month with 248 mm; December is the driest with 19 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): January, February, November and December. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Jimma
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Jimma climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.0°C13.6°C | 13.6°C | 24 | 4.9 | 11.712 h |
| February | 27.3°C14.4°C | 14.4°C | 29 | 4.9 | 11.912 h |
| March | 27.1°C14.8°C | 14.8°C | 75 | 11.9 | 12.112 h |
| April | 25.9°C15.0°C | 15.0°C | 142 | 19.2 | 12.312 h |
| May | 24.3°C14.6°C | 14.6°C | 225 | 25.8 | 12.512 h |
| June | 23.1°C14.0°C | 14.0°C | 179 | 28.3 | 12.613 h |
| July | 22.3°C13.8°C | 13.8°C | 191 | 29.4 | 12.513 h |
| August | 22.5°C13.9°C | 13.9°C | 205 | 29.6 | 12.412 h |
| September | 23.2°C13.6°C | 13.6°C | 248 | 29.3 | 12.212 h |
| October | 23.9°C13.2°C | 13.2°C | 148 | 17.9 | 12.012 h |
| November | 24.6°C12.8°C | 12.8°C | 50 | 7.4 | 11.812 h |
| December | 25.2°C12.8°C | 12.8°C | 19 | 3.8 | 11.712 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- Hosa’inaEthiopia · 113 kmHigh 21.5°C · Low 10.7°C · 2,196 mm rain a year
- ĀrekaEthiopia · 117 kmHigh 24.9°C · Low 14.2°C · 1,776 mm rain a year
- GununoEthiopia · 123 kmHigh 23.6°C · Low 13.5°C · 1,776 mm rain a year
- Welk’īt’ēEthiopia · 125 kmHigh 23.2°C · Low 12.2°C · 1,362 mm rain a year
- SodoEthiopia · 137 kmHigh 23.3°C · Low 12.9°C · 1,579 mm rain a year
- K’olītoEthiopia · 143 kmHigh 24.8°C · Low 14.2°C · 1,031 mm rain a year
- WalisoEthiopia · 157 kmHigh 22.8°C · Low 12.1°C · 1,398 mm rain a year
- ButajīraEthiopia · 176 kmHigh 23.4°C · Low 13.0°C · 2,291 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+3, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 7.70°, 36.80° (5 km from the city centre), adjusted up by 0.7°C for the difference between the city's elevation (1,719 m) and the cell's (1,823 m). Rain comes from the 0.25° cell at 7.75°, 36.75°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.