Climate averages 1991–2020
Isiolo weather
in August.
A warm, moderately wet month: the 9th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Isiolo: daytime highs average 27.7°C and nights cool to about 16.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 40 mm of rain on roughly 9 days, which makes August a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 08 min on an average August day.
The nearest other city in this atlas is Meru (35 km away). In August its highs average 23.0°C, 4.8°C cooler than Isiolo, with 11 mm of rain.
Among the 37 cities listed in Kenya, Isiolo ranks 5th of 37 for the warmest August highs and joint 19th of 37 for the driest August (rainfall, lowest first). The mean August high of those 37 cities is 24.3°C; Isiolo is 3.4°C warmer than that mean.
From August to September, average highs rise by 1.5°C to 29.2°C, and monthly rainfall falls from 40 mm to 27 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
Isiolo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.1°C16.6°C | 16.6°C | 41 | 8.2 | 12.112 h |
| February | 29.4°C17.2°C | 17.2°C | 23 | 4.9 | 12.112 h |
| March | 29.5°C18.1°C | 18.1°C | 43 | 8.6 | 12.112 h |
| April | 28.7°C18.8°C | 18.8°C | 76 | 11.2 | 12.112 h |
| May | 28.9°C18.5°C | 18.5°C | 47 | 7.5 | 12.112 h |
| June | 28.0°C17.4°C | 17.4°C | 28 | 5.6 | 12.112 h |
| July | 27.2°C16.7°C | 16.7°C | 38 | 7.8 | 12.112 h |
| August, selected | 27.7°C16.7°C | 16.7°C | 40 | 9.0 | 12.112 h |
| September | 29.2°C17.2°C | 17.2°C | 27 | 5.7 | 12.112 h |
| October | 29.0°C18.3°C | 18.3°C | 52 | 10.0 | 12.112 h |
| November | 26.2°C17.6°C | 17.6°C | 99 | 19.8 | 12.112 h |
| December | 26.7°C16.6°C | 16.6°C | 55 | 13.3 | 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 · 35 kmHigh 23.0°C · Low 13.6°C · 11 mm rain
- Nanyuki in AugustKenya · 69 kmHigh 20.3°C · Low 12.1°C · 54 mm rain
- Nyeri in AugustKenya · 111 kmHigh 18.9°C · Low 10.7°C · 57 mm rain
- Karuri (Murang'A), Kenya in AugustKenya · 125 kmHigh 23.1°C · Low 13.9°C · 27 mm rain
- Thika in AugustKenya · 165 kmHigh 22.5°C · Low 13.2°C · 32 mm rain
- Naivasha in AugustKenya · 175 kmHigh 19.7°C · Low 11.7°C · 50 mm rain
- Ruiru in AugustKenya · 181 kmHigh 22.2°C · Low 12.6°C · 12 mm rain
- Nakuru in AugustKenya · 183 kmHigh 21.7°C · Low 11.7°C · 72 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 Isiolo) is explained once on the Isiolo year overview and on the Sources, method and limits page.