Climate averages 1991–2020
Asmara weather
in August.
A warm, very wet month: the 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Asmara: daytime highs average 22.1°C and nights cool to about 14.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 211 mm of rain on roughly 27 days, which makes August a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 38 min on an average August day.
The nearest other city in this atlas is Keren (71 km away). In August its highs average 25.1°C, 3.0°C warmer than Asmara, with 193 mm of rain.
Among the 2 cities listed in Eritrea, Asmara ranks 2nd of 2 for the warmest August highs and 2nd of 2 for the driest August (rainfall, lowest first). The mean August high of those 2 cities is 23.6°C; Asmara is 1.5°C cooler than that mean.
From August to September, average highs rise by 1.3°C to 23.4°C, and monthly rainfall falls from 211 mm to 38 mm.
The annual picture
August 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
Asmara climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.5°C9.6°C | 9.6°C | 49 | 12.9 | 11.311 h |
| February | 22.0°C10.4°C | 10.4°C | 34 | 9.4 | 11.612 h |
| March | 23.3°C11.4°C | 11.4°C | 48 | 12.2 | 12.012 h |
| April | 23.8°C12.6°C | 12.6°C | 63 | 16.1 | 12.512 h |
| May | 24.5°C13.7°C | 13.7°C | 47 | 10.7 | 12.813 h |
| June | 25.3°C14.0°C | 14.0°C | 39 | 8.3 | 13.013 h |
| July | 22.5°C14.0°C | 14.0°C | 182 | 27.3 | 12.913 h |
| August, selected | 22.1°C14.3°C | 14.3°C | 211 | 26.9 | 12.613 h |
| September | 23.4°C13.4°C | 13.4°C | 38 | 6.1 | 12.212 h |
| October | 22.0°C11.9°C | 11.9°C | 28 | 5.7 | 11.812 h |
| November | 20.9°C10.8°C | 10.8°C | 32 | 8.4 | 11.411 h |
| December | 20.3°C10.1°C | 10.1°C | 36 | 10.9 | 11.211 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
August in nearby cities
- Keren in AugustEritrea · 71 kmHigh 25.1°C · Low 17.9°C · 193 mm rain
- Adwa in AugustEthiopia · 131 kmHigh 23.4°C · Low 14.9°C · 270 mm rain
- Ādīgrat in AugustEthiopia · 131 kmHigh 21.7°C · Low 13.8°C · 311 mm rain
- Aksum in AugustEthiopia · 137 kmHigh 22.2°C · Low 14.0°C · 297 mm rain
- Inda Silasē in AugustEthiopia · 154 kmHigh 22.5°C · Low 15.2°C · 507 mm rain
- Mek'ele in AugustEthiopia · 213 kmHigh 22.7°C · Low 14.4°C · 284 mm rain
- Kassala in AugustSudan · 272 kmHigh 33.1°C · Low 23.7°C · 72 mm rain
- Alamata in AugustEthiopia · 332 kmHigh 28.1°C · Low 16.5°C · 226 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 Asmara) is explained once on the Asmara year overview and on the Sources, method and limits page.