Climate averages 1991–2020
Keren weather
in May.
A hot, fairly dry month: the warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Keren: daytime highs average 32.3°C and nights cool to about 18.6°C. By daytime temperature it is the warmest month of the year.
Expect about 20 mm of rain on roughly 6 days, which makes May a fairly dry month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 51 min on an average May day.
The nearest other city in this atlas is Asmara (71 km away). In May its highs average 24.5°C, 7.8°C cooler than Keren, with 47 mm of rain.
Among the 2 cities listed in Eritrea, Keren ranks 1st of 2 for the warmest May highs and 1st of 2 for the driest May (rainfall, lowest first). The mean May high of those 2 cities is 28.4°C; Keren is 3.9°C warmer than that mean.
From May to June, average highs fall by 1.6°C to 30.7°C, and monthly rainfall rises from 20 mm to 42 mm.
The annual picture
May 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
Keren climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.4°C14.0°C | 14.0°C | 0.5 | 0.1 | 11.311 h |
| February | 28.1°C14.4°C | 14.4°C | 0.6 | 0.1 | 11.612 h |
| March | 29.9°C15.6°C | 15.6°C | 5.3 | 1.8 | 12.012 h |
| April | 31.3°C17.3°C | 17.3°C | 13 | 4.9 | 12.512 h |
| May, selected | 32.3°C18.6°C | 18.6°C | 20 | 5.6 | 12.913 h |
| June | 30.7°C19.7°C | 19.7°C | 42 | 11.0 | 13.013 h |
| July | 26.4°C18.1°C | 18.1°C | 86 | 20.1 | 13.013 h |
| August | 25.1°C17.9°C | 17.9°C | 193 | 28.3 | 12.713 h |
| September | 27.9°C17.4°C | 17.4°C | 123 | 16.8 | 12.212 h |
| October | 28.7°C14.9°C | 14.9°C | 6.2 | 1.6 | 11.812 h |
| November | 27.4°C14.9°C | 14.9°C | 3.1 | 0.9 | 11.411 h |
| December | 26.3°C14.5°C | 14.5°C | 0.6 | 0.1 | 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
May in nearby cities
- Asmara in MayEritrea · 71 kmHigh 24.5°C · Low 13.7°C · 47 mm rain
- Adwa in MayEthiopia · 186 kmHigh 29.6°C · Low 15.5°C · 32 mm rain
- Aksum in MayEthiopia · 187 kmHigh 28.5°C · Low 15.4°C · 42 mm rain
- Inda Silasē in MayEthiopia · 187 kmHigh 29.9°C · Low 17.7°C · 65 mm rain
- Ādīgrat in MayEthiopia · 199 kmHigh 23.9°C · Low 13.5°C · 68 mm rain
- Kassala in MaySudan · 223 kmHigh 40.4°C · Low 26.7°C · 7.0 mm rain
- Mek'ele in MayEthiopia · 277 kmHigh 26.9°C · Low 15.5°C · 26 mm rain
- Al Qadarif in MaySudan · 382 kmHigh 39.5°C · Low 26.6°C · 26 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 Keren) is explained once on the Keren year overview and on the Sources, method and limits page.