Climate averages 1991–2020
Kisumu weather
in August.
A warm, wet month: the 9th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Kisumu: daytime highs average 27.2°C and nights cool to about 18.0°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 100 mm of rain on roughly 19 days, which makes August a wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average August day.
The nearest other city in this atlas is Khwisero (36 km away). In August its highs average 24.4°C, 2.8°C cooler than Kisumu, with 139 mm of rain.
Among the 37 cities listed in Kenya, Kisumu ranks 8th of 37 for the warmest August highs and 32nd of 37 for the driest August (rainfall, lowest first). The mean August high of those 37 cities is 24.3°C; Kisumu is 2.9°C warmer than that mean.
From August to September, average highs rise by 0.9°C to 28.2°C, and monthly rainfall rises from 100 mm to 106 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
Kisumu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.8°C18.3°C | 18.3°C | 116 | 15.7 | 12.112 h |
| February | 30.0°C18.8°C | 18.8°C | 89 | 13.2 | 12.112 h |
| March | 29.2°C18.8°C | 18.8°C | 182 | 20.2 | 12.112 h |
| April | 27.3°C18.5°C | 18.5°C | 281 | 27.0 | 12.112 h |
| May | 26.8°C18.1°C | 18.1°C | 206 | 26.3 | 12.112 h |
| June | 26.7°C17.9°C | 17.9°C | 103 | 20.7 | 12.112 h |
| July | 26.6°C17.9°C | 17.9°C | 92 | 18.1 | 12.112 h |
| August, selected | 27.2°C18.0°C | 18.0°C | 100 | 19.2 | 12.112 h |
| September | 28.2°C18.2°C | 18.2°C | 106 | 19.5 | 12.112 h |
| October | 27.9°C18.4°C | 18.4°C | 194 | 25.5 | 12.112 h |
| November | 27.4°C18.1°C | 18.1°C | 247 | 25.0 | 12.112 h |
| December | 27.9°C17.9°C | 17.9°C | 179 | 20.7 | 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
- Khwisero in AugustKenya · 36 kmHigh 24.4°C · Low 15.6°C · 139 mm rain
- Kakamega in AugustKenya · 43 kmHigh 24.3°C · Low 14.0°C · 106 mm rain
- Kisii in AugustKenya · 64 kmHigh 24.2°C · Low 14.2°C · 77 mm rain
- Eldoret in AugustKenya · 89 kmHigh 20.6°C · Low 11.6°C · 304 mm rain
- Busia in AugustKenya · 96 kmHigh 25.7°C · Low 16.4°C · 168 mm rain
- Migori in AugustKenya · 112 kmHigh 27.1°C · Low 16.6°C · 51 mm rain
- Kitale in AugustKenya · 127 kmHigh 18.5°C · Low 10.4°C · 224 mm rain
- Tarime in AugustTanzania · 146 kmHigh 27.9°C · Low 16.2°C · 39 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 Kisumu) is explained once on the Kisumu year overview and on the Sources, method and limits page.