Climate averages 1991–2020
Yirga ‘Alem weather
in September.
A warm, very wet month: the 9th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Yirga ‘Alem: daytime highs average 22.3°C and nights cool to about 13.1°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 224 mm of rain on roughly 26 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average September day.
The nearest other city in this atlas is Awasa (35 km away). In September its highs average 23.1°C, 0.8°C warmer than Yirga ‘Alem, with 171 mm of rain.
Among the 40 cities listed in Ethiopia, Yirga ‘Alem ranks 25th of 40 for the warmest September highs and 24th of 40 for the driest September (rainfall, lowest first). The mean September high of those 40 cities is 23.6°C; Yirga ‘Alem is 1.3°C cooler than that mean.
From September to October, average highs rise by 0.6°C to 22.8°C, and monthly rainfall falls from 224 mm to 201 mm.
The annual picture
September in context
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
Yirga ‘Alem climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.4°C12.7°C | 12.7°C | 26 | 4.4 | 11.812 h |
| February | 27.6°C13.5°C | 13.5°C | 34 | 4.8 | 11.912 h |
| March | 27.4°C14.5°C | 14.5°C | 98 | 11.9 | 12.112 h |
| April | 25.2°C14.5°C | 14.5°C | 211 | 20.5 | 12.312 h |
| May | 23.1°C14.0°C | 14.0°C | 233 | 25.4 | 12.412 h |
| June | 21.6°C13.6°C | 13.6°C | 131 | 25.7 | 12.513 h |
| July | 20.7°C13.6°C | 13.6°C | 124 | 25.5 | 12.512 h |
| August | 21.2°C13.6°C | 13.6°C | 150 | 26.3 | 12.312 h |
| September, selected | 22.3°C13.1°C | 13.1°C | 224 | 26.0 | 12.212 h |
| October | 22.8°C12.9°C | 12.9°C | 201 | 21.6 | 12.012 h |
| November | 24.1°C12.5°C | 12.5°C | 74 | 9.5 | 11.812 h |
| December | 25.2°C12.0°C | 12.0°C | 26 | 4.0 | 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
September in nearby cities
- Awasa in SeptemberEthiopia · 35 kmHigh 23.1°C · Low 14.2°C · 171 mm rain
- Dīla in SeptemberEthiopia · 39 kmHigh 23.4°C · Low 15.1°C · 212 mm rain
- Shashamane in SeptemberEthiopia · 54 kmHigh 21.4°C · Low 13.0°C · 136 mm rain
- K’olīto in SeptemberEthiopia · 73 kmHigh 22.9°C · Low 13.6°C · 163 mm rain
- Arsi Negele in SeptemberEthiopia · 73 kmHigh 21.0°C · Low 13.2°C · 369 mm rain
- Sodo in SeptemberEthiopia · 73 kmHigh 21.5°C · Low 12.7°C · 227 mm rain
- Gununo in SeptemberEthiopia · 87 kmHigh 21.9°C · Low 13.1°C · 267 mm rain
- Āreka in SeptemberEthiopia · 87 kmHigh 23.0°C · Low 13.9°C · 267 mm rain
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Yirga ‘Alem) is explained once on the Yirga ‘Alem year overview and on the Sources, method and limits page.