Climate averages 1991–2020
Kumasi weather
in August.
A warm, wet month: one of the coolest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Kumasi: daytime highs average 27.7°C and nights cool to about 21.7°C. By daytime temperature it is one of the coolest months of the year.
Expect about 92 mm of rain on roughly 18 days, which makes August a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average August day.
The nearest other city in this atlas is Obuase (54 km away). In August its highs average 27.7°C, about as warm as Kumasi, with 93 mm of rain.
Among the 26 cities listed in Ghana, Kumasi ranks joint 11th of 26 for the warmest August highs and 12th of 26 for the driest August (rainfall, lowest first). The mean August high of those 26 cities is 27.5°C; Kumasi is 0.2°C warmer than that mean.
From August to September, average highs rise by 0.5°C to 28.2°C, and monthly rainfall rises from 92 mm to 141 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
Kumasi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.9°C22.5°C | 22.5°C | 20 | 3.8 | 11.812 h |
| February | 33.7°C23.6°C | 23.6°C | 42 | 8.1 | 11.912 h |
| March | 32.7°C23.8°C | 23.8°C | 99 | 17.2 | 12.112 h |
| April | 31.8°C23.8°C | 23.8°C | 103 | 17.9 | 12.312 h |
| May | 30.6°C23.4°C | 23.4°C | 117 | 20.0 | 12.412 h |
| June | 28.7°C22.4°C | 22.4°C | 130 | 22.2 | 12.513 h |
| July | 27.7°C21.8°C | 21.8°C | 106 | 19.3 | 12.512 h |
| August, selected | 27.7°C21.7°C | 21.7°C | 92 | 17.9 | 12.312 h |
| September | 28.2°C22.0°C | 22.0°C | 141 | 23.9 | 12.212 h |
| October | 28.8°C22.2°C | 22.2°C | 121 | 21.9 | 12.012 h |
| November | 29.7°C22.3°C | 22.3°C | 60 | 12.6 | 11.812 h |
| December | 31.2°C22.4°C | 22.4°C | 22 | 4.9 | 11.712 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
- Obuase in AugustGhana · 54 kmHigh 27.7°C · Low 21.8°C · 93 mm rain
- Ejura in AugustGhana · 83 kmHigh 29.0°C · Low 22.2°C · 117 mm rain
- Sunyani in AugustGhana · 106 kmHigh 27.8°C · Low 21.7°C · 91 mm rain
- Techiman in AugustGhana · 106 kmHigh 27.5°C · Low 21.3°C · 116 mm rain
- Twifu Praso in AugustGhana · 120 kmHigh 27.7°C · Low 22.1°C · 113 mm rain
- Berekum in AugustGhana · 136 kmHigh 27.7°C · Low 21.7°C · 102 mm rain
- Japekrom in AugustGhana · 162 kmHigh 27.9°C · Low 21.9°C · 108 mm rain
- Koforidua in AugustGhana · 165 kmHigh 27.8°C · Low 21.9°C · 103 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 Kumasi) is explained once on the Kumasi year overview and on the Sources, method and limits page.