Climate averages 1991–2020
Bahir Dar weather
in September.
A warm, very wet month: the 10th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Bahir Dar: daytime highs average 22.5°C and nights cool to about 15.2°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 248 mm of rain on roughly 27 days, which makes September a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average September day.
The nearest other city in this atlas is Debre Mark’os (143 km away). In September its highs average 19.6°C, 2.9°C cooler than Bahir Dar, with 390 mm of rain.
Among the 40 cities listed in Ethiopia, Bahir Dar ranks 24th of 40 for the warmest September highs and joint 26th of 40 for the driest September (rainfall, lowest first). The mean September high of those 40 cities is 23.6°C; Bahir Dar is 1.2°C cooler than that mean.
From September to October, average highs rise by 0.9°C to 23.4°C, and monthly rainfall falls from 248 mm to 58 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
Bahir Dar climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.4°C14.5°C | 14.5°C | 2.9 | 0.7 | 11.512 h |
| February | 27.1°C15.8°C | 15.8°C | 3.8 | 0.9 | 11.812 h |
| March | 28.0°C16.9°C | 16.9°C | 16 | 3.1 | 12.112 h |
| April | 28.0°C17.9°C | 17.9°C | 26 | 5.8 | 12.412 h |
| May | 26.2°C17.5°C | 17.5°C | 102 | 15.0 | 12.713 h |
| June | 23.5°C16.2°C | 16.2°C | 284 | 26.0 | 12.813 h |
| July | 21.4°C15.6°C | 15.6°C | 521 | 30.9 | 12.713 h |
| August | 21.4°C15.5°C | 15.5°C | 524 | 30.9 | 12.513 h |
| September, selected | 22.5°C15.2°C | 15.2°C | 248 | 26.5 | 12.212 h |
| October | 23.4°C15.1°C | 15.1°C | 58 | 11.2 | 11.912 h |
| November | 24.1°C14.3°C | 14.3°C | 15 | 3.5 | 11.612 h |
| December | 24.7°C14.1°C | 14.1°C | 3.6 | 1.0 | 11.511 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
- Debre Mark’os in SeptemberEthiopia · 143 kmHigh 19.6°C · Low 10.5°C · 390 mm rain
- Weldiya in SeptemberEthiopia · 241 kmHigh 26.8°C · Low 15.6°C · 43 mm rain
- Dessie in SeptemberEthiopia · 250 kmHigh 20.0°C · Low 9.7°C · 59 mm rain
- Alamata in SeptemberEthiopia · 253 kmHigh 28.6°C · Low 15.6°C · 38 mm rain
- Kombolcha in SeptemberEthiopia · 263 kmHigh 24.4°C · Low 13.6°C · 74 mm rain
- Hāgere Hiywet in SeptemberEthiopia · 295 kmHigh 21.9°C · Low 13.3°C · 434 mm rain
- Inda Silasē in SeptemberEthiopia · 295 kmHigh 24.6°C · Low 14.6°C · 253 mm rain
- Mek'ele in SeptemberEthiopia · 310 kmHigh 24.2°C · Low 13.9°C · 67 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 Bahir Dar) is explained once on the Bahir Dar year overview and on the Sources, method and limits page.