Climate averages 1991–2020
Isiolo weather
in July.
A warm, fairly dry month: the 10th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Isiolo: daytime highs average 27.2°C and nights cool to about 16.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 38 mm of rain on roughly 8 days, which makes July a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 08 min on an average July day.
The nearest other city in this atlas is Meru (35 km away). In July its highs average 22.4°C, 4.8°C cooler than Isiolo, with 10 mm of rain.
Among the 37 cities listed in Kenya, Isiolo ranks 5th of 37 for the warmest July highs and 20th of 37 for the driest July (rainfall, lowest first). The mean July high of those 37 cities is 23.8°C; Isiolo is 3.4°C warmer than that mean.
From July to August, average highs rise by 0.6°C to 27.7°C, and monthly rainfall rises from 38 mm to 40 mm.
The annual picture
July 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, selected | 27.2°C16.7°C | 16.7°C | 38 | 7.8 | 12.112 h |
| August | 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
July in nearby cities
- Meru in JulyKenya · 35 kmHigh 22.4°C · Low 13.6°C · 10 mm rain
- Nanyuki in JulyKenya · 69 kmHigh 20.0°C · Low 12.0°C · 45 mm rain
- Nyeri in JulyKenya · 111 kmHigh 18.6°C · Low 10.8°C · 51 mm rain
- Karuri (Murang'A), Kenya in JulyKenya · 125 kmHigh 22.3°C · Low 13.6°C · 22 mm rain
- Thika in JulyKenya · 165 kmHigh 21.8°C · Low 12.9°C · 26 mm rain
- Naivasha in JulyKenya · 175 kmHigh 19.2°C · Low 11.8°C · 36 mm rain
- Ruiru in JulyKenya · 181 kmHigh 21.7°C · Low 12.3°C · 8.5 mm rain
- Nakuru in JulyKenya · 183 kmHigh 21.4°C · Low 11.8°C · 55 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.