Climate averages 1991–2020
Arusha weather
in August.
A warm, very dry month: the 9th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Arusha: daytime highs average 22.8°C and nights cool to about 12.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 3.6 mm of rain on roughly 1 day, which makes August a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average August day.
The nearest other city in this atlas is Kondoa (198 km away). In August its highs average 25.8°C, 3.1°C warmer than Arusha, with almost no rain (under 1 mm).
Among the 43 cities listed in Tanzania, Arusha ranks 38th of 43 for the warmest August highs and 15th of 43 for the driest August (rainfall, lowest first). The mean August high of those 43 cities is 26.7°C; Arusha is 3.9°C cooler than that mean.
From August to September, average highs rise by 2.2°C to 25.0°C, and monthly rainfall rises from 3.6 mm to 4.1 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
Arusha climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.7°C16.1°C | 16.1°C | 82 | 10.6 | 12.312 h |
| February | 28.4°C16.5°C | 16.5°C | 73 | 9.0 | 12.212 h |
| March | 27.2°C16.8°C | 16.8°C | 143 | 16.7 | 12.112 h |
| April | 24.3°C16.7°C | 16.7°C | 145 | 21.7 | 12.012 h |
| May | 22.6°C15.2°C | 15.2°C | 50 | 11.9 | 12.012 h |
| June | 21.7°C13.0°C | 13.0°C | 6.6 | 2.3 | 11.912 h |
| July | 21.5°C11.9°C | 11.9°C | 3.9 | 1.1 | 11.912 h |
| August, selected | 22.8°C12.7°C | 12.7°C | 3.6 | 1.1 | 12.012 h |
| September | 25.0°C13.7°C | 13.7°C | 4.1 | 1.1 | 12.112 h |
| October | 26.2°C15.2°C | 15.2°C | 30 | 7.3 | 12.212 h |
| November | 26.0°C16.2°C | 16.2°C | 103 | 17.7 | 12.312 h |
| December | 26.4°C16.1°C | 16.1°C | 108 | 16.7 | 12.312 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
- Kondoa in AugustTanzania · 198 kmHigh 25.8°C · Low 12.7°C · 0.7 mm rain
- Kitengela in AugustKenya · 212 kmHigh 22.6°C · Low 13.3°C · 15 mm rain
- Ongata Rongai in AugustKenya · 219 kmHigh 21.9°C · Low 12.6°C · 15 mm rain
- Mlolongo in AugustKenya · 221 kmHigh 22.4°C · Low 12.9°C · 15 mm rain
- Ngong in AugustKenya · 224 kmHigh 21.6°C · Low 11.8°C · 21 mm rain
- Nairobi in AugustKenya · 232 kmHigh 22.3°C · Low 12.6°C · 21 mm rain
- Kikuyu in AugustKenya · 236 kmHigh 19.9°C · Low 10.9°C · 21 mm rain
- Mwala in AugustKenya · 240 kmHigh 24.0°C · Low 14.5°C · 2.6 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 Arusha) is explained once on the Arusha year overview and on the Sources, method and limits page.