Climate averages 1991–2020
Garissa weather
in August.
A hot, very dry month: the 11th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Garissa: daytime highs average 31.5°C and nights cool to about 21.6°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 2.4 mm of rain on fewer than one day, which makes August a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average August day.
The nearest other city in this atlas is Meru (228 km away). In August its highs average 23.0°C, 8.5°C cooler than Garissa, with 11 mm of rain.
Among the 37 cities listed in Kenya, Garissa ranks 3rd of 37 for the warmest August highs and 3rd of 37 for the driest August (rainfall, lowest first). The mean August high of those 37 cities is 24.3°C; Garissa is 7.2°C warmer than that mean.
From August to September, average highs rise by 1.1°C to 32.6°C, and monthly rainfall rises from 2.4 mm to 4.6 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
Garissa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 34.4°C23.8°C | 23.8°C | 17 | 1.9 | 12.112 h |
| February | 35.5°C24.2°C | 24.2°C | 3.8 | 0.9 | 12.112 h |
| March | 35.6°C25.1°C | 25.1°C | 20 | 3.6 | 12.112 h |
| April | 34.4°C24.9°C | 24.9°C | 36 | 7.9 | 12.112 h |
| May | 33.2°C24.0°C | 24.0°C | 16 | 3.1 | 12.112 h |
| June | 32.1°C22.8°C | 22.8°C | 2.1 | 0.4 | 12.112 h |
| July | 31.2°C21.8°C | 21.8°C | 2.0 | 0.3 | 12.112 h |
| August, selected | 31.5°C21.6°C | 21.6°C | 2.4 | 0.2 | 12.112 h |
| September | 32.6°C22.1°C | 22.1°C | 4.6 | 0.8 | 12.112 h |
| October | 33.6°C23.2°C | 23.2°C | 16 | 3.6 | 12.112 h |
| November | 32.4°C23.7°C | 23.7°C | 67 | 11.8 | 12.112 h |
| December | 32.8°C23.7°C | 23.7°C | 42 | 7.6 | 12.112 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
- Meru in AugustKenya · 228 kmHigh 23.0°C · Low 13.6°C · 11 mm rain
- Isiolo in AugustKenya · 246 kmHigh 27.7°C · Low 16.7°C · 40 mm rain
- Wajir in AugustKenya · 249 kmHigh 31.4°C · Low 21.7°C · 2.1 mm rain
- Kaambooni in AugustSomalia · 253 kmHigh 28.0°C · Low 23.2°C · 31 mm rain
- Mwala in AugustKenya · 263 kmHigh 24.0°C · Low 14.5°C · 2.6 mm rain
- Karuri (Murang'A), Kenya in AugustKenya · 275 kmHigh 23.1°C · Low 13.9°C · 27 mm rain
- Nanyuki in AugustKenya · 291 kmHigh 20.3°C · Low 12.1°C · 54 mm rain
- Thika in AugustKenya · 294 kmHigh 22.5°C · Low 13.2°C · 32 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 Garissa) is explained once on the Garissa year overview and on the Sources, method and limits page.