Climate averages 1991–2020
Sunyani weather
in August.
A warm, wet month: the coolest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Sunyani: daytime highs average 27.8°C and nights cool to about 21.7°C. By daytime temperature it is the coolest month of the year.
Expect about 91 mm of rain on roughly 17 days, which makes August a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average August day.
The nearest other city in this atlas is Berekum (31 km away). In August its highs average 27.7°C, about as warm as Sunyani, with 102 mm of rain.
Among the 26 cities listed in Ghana, Sunyani ranks joint 9th of 26 for the warmest August highs and 11th of 26 for the driest August (rainfall, lowest first). The mean August high of those 26 cities is 27.5°C; Sunyani is 0.3°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 91 mm to 132 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
Sunyani climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.5°C21.9°C | 21.9°C | 15 | 3.0 | 11.712 h |
| February | 34.4°C23.4°C | 23.4°C | 36 | 6.1 | 11.912 h |
| March | 33.3°C23.9°C | 23.9°C | 86 | 14.6 | 12.112 h |
| April | 32.2°C23.8°C | 23.8°C | 100 | 16.4 | 12.312 h |
| May | 31.1°C23.5°C | 23.5°C | 98 | 18.3 | 12.512 h |
| June | 29.2°C22.5°C | 22.5°C | 102 | 19.1 | 12.513 h |
| July | 28.0°C21.8°C | 21.8°C | 83 | 16.4 | 12.513 h |
| August, selected | 27.8°C21.7°C | 21.7°C | 91 | 16.9 | 12.412 h |
| September | 28.2°C21.9°C | 21.9°C | 132 | 22.0 | 12.212 h |
| October | 28.9°C22.1°C | 22.1°C | 116 | 21.1 | 12.012 h |
| November | 30.1°C22.2°C | 22.2°C | 57 | 10.9 | 11.812 h |
| December | 31.9°C21.8°C | 21.8°C | 18 | 3.4 | 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
- Berekum in AugustGhana · 31 kmHigh 27.7°C · Low 21.7°C · 102 mm rain
- Techiman in AugustGhana · 51 kmHigh 27.5°C · Low 21.3°C · 116 mm rain
- Japekrom in AugustGhana · 57 kmHigh 27.9°C · Low 21.9°C · 108 mm rain
- Bondoukou in AugustIvory Coast · 94 kmHigh 27.7°C · Low 21.4°C · 142 mm rain
- Kumasi in AugustGhana · 106 kmHigh 27.7°C · Low 21.7°C · 92 mm rain
- Ejura in AugustGhana · 107 kmHigh 29.0°C · Low 22.2°C · 117 mm rain
- Abengourou in AugustIvory Coast · 146 kmHigh 28.2°C · Low 21.8°C · 87 mm rain
- Obuase in AugustGhana · 146 kmHigh 27.7°C · Low 21.8°C · 93 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 Sunyani) is explained once on the Sunyani year overview and on the Sources, method and limits page.