Climate averages 1991–2020
Mlolongo weather
in September.
A warm, very dry month: the 6th warmest and one of the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Mlolongo: daytime highs average 24.3°C and nights cool to about 13.5°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 11 mm of rain on roughly 2 days, which makes September a very dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average September day.
The nearest other city in this atlas is Kitengela (9 km away). In September its highs average 24.5°C, about as warm as Mlolongo, with 11 mm of rain.
Among the 37 cities listed in Kenya, Mlolongo ranks joint 24th of 37 for the warmest September highs and joint 8th of 37 for the driest September (rainfall, lowest first). The mean September high of those 37 cities is 25.7°C; Mlolongo is 1.4°C cooler than that mean.
From September to October, average highs rise by 0.8°C to 25.1°C, and monthly rainfall rises from 11 mm to 37 mm.
The annual picture
September 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
Mlolongo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.4°C14.8°C | 14.8°C | 41 | 7.7 | 12.212 h |
| February | 26.7°C15.3°C | 15.3°C | 36 | 6.5 | 12.212 h |
| March | 26.4°C15.9°C | 15.9°C | 72 | 13.3 | 12.112 h |
| April | 24.4°C16.1°C | 16.1°C | 132 | 21.3 | 12.112 h |
| May | 23.3°C15.2°C | 15.2°C | 80 | 15.6 | 12.112 h |
| June | 22.4°C13.8°C | 13.8°C | 31 | 6.7 | 12.012 h |
| July | 21.9°C12.7°C | 12.7°C | 11 | 2.7 | 12.012 h |
| August | 22.4°C12.9°C | 12.9°C | 15 | 3.0 | 12.112 h |
| September, selected | 24.3°C13.5°C | 13.5°C | 11 | 2.2 | 12.112 h |
| October | 25.1°C14.8°C | 14.8°C | 37 | 8.6 | 12.112 h |
| November | 23.2°C15.1°C | 15.1°C | 114 | 21.3 | 12.212 h |
| December | 23.7°C14.7°C | 14.7°C | 69 | 15.1 | 12.212 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
September in nearby cities
- Kitengela in SeptemberKenya · 9 kmHigh 24.5°C · Low 13.9°C · 11 mm rain
- Nairobi in SeptemberKenya · 19 kmHigh 24.2°C · Low 13.2°C · 16 mm rain
- Ongata Rongai in SeptemberKenya · 20 kmHigh 23.8°C · Low 13.2°C · 12 mm rain
- Ruiru in SeptemberKenya · 28 kmHigh 24.3°C · Low 13.2°C · 9.5 mm rain
- Ngong in SeptemberKenya · 30 kmHigh 23.6°C · Low 12.5°C · 16 mm rain
- Karuri (Kiambu County), Kenya in SeptemberKenya · 32 kmHigh 22.1°C · Low 11.7°C · 16 mm rain
- Kikuyu in SeptemberKenya · 35 kmHigh 21.9°C · Low 11.5°C · 16 mm rain
- Thika in SeptemberKenya · 43 kmHigh 24.7°C · Low 13.7°C · 23 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 Mlolongo) is explained once on the Mlolongo year overview and on the Sources, method and limits page.
Kitengela lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.