Climate averages 1991–2020
Bolgatanga weather
in May.
A very hot, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in Bolgatanga: daytime highs average 36.4°C and nights cool to about 26.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 53 mm of rain on roughly 10 days, which makes May a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average May day.
The nearest other city in this atlas is Bawku (73 km away). In May its highs average 36.3°C, about as warm as Bolgatanga, with 49 mm of rain.
Among the 26 cities listed in Ghana, Bolgatanga ranks 1st of 26 for the warmest May highs and 2nd of 26 for the driest May (rainfall, lowest first). The mean May high of those 26 cities is 31.2°C; Bolgatanga is 5.2°C warmer than that mean.
From May to June, average highs fall by 2.8°C to 33.6°C, and monthly rainfall rises from 53 mm to 62 mm.
The annual picture
May 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
Bolgatanga climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 35.0°C20.5°C | 20.5°C | 0.3 | 0.1 | 11.612 h |
| February | 37.4°C22.7°C | 22.7°C | 1.8 | 0.5 | 11.812 h |
| March | 39.1°C25.4°C | 25.4°C | 10 | 2.3 | 12.112 h |
| April | 38.6°C26.9°C | 26.9°C | 32 | 6.2 | 12.412 h |
| May, selected | 36.4°C26.2°C | 26.2°C | 53 | 10.3 | 12.613 h |
| June | 33.6°C24.6°C | 24.6°C | 62 | 11.3 | 12.713 h |
| July | 30.5°C23.2°C | 23.2°C | 132 | 19.2 | 12.713 h |
| August | 28.9°C22.6°C | 22.6°C | 211 | 25.2 | 12.512 h |
| September | 29.6°C22.6°C | 22.6°C | 144 | 18.4 | 12.212 h |
| October | 32.3°C23.2°C | 23.2°C | 46 | 8.7 | 11.912 h |
| November | 35.3°C22.0°C | 22.0°C | 3.6 | 0.6 | 11.612 h |
| December | 35.0°C20.7°C | 20.7°C | 0.1 | 0.0 | 11.512 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
May in nearby cities
- Bawku in MayGhana · 73 kmHigh 36.3°C · Low 26.3°C · 49 mm rain
- Tamale in MayGhana · 154 kmHigh 34.7°C · Low 25.3°C · 68 mm rain
- Pouytenga in MayBurkina Faso · 169 kmHigh 38.1°C · Low 27.0°C · 24 mm rain
- Saaba in MayBurkina Faso · 187 kmHigh 38.3°C · Low 27.2°C · 26 mm rain
- Ouagadougou in MayBurkina Faso · 191 kmHigh 38.4°C · Low 27.2°C · 26 mm rain
- Fada N'gourma in MayBurkina Faso · 194 kmHigh 38.1°C · Low 26.9°C · 34 mm rain
- Wa in MayGhana · 198 kmHigh 34.1°C · Low 24.5°C · 100 mm rain
- Jirapa in MayGhana · 204 kmHigh 35.1°C · Low 24.9°C · 75 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 Bolgatanga) is explained once on the Bolgatanga year overview and on the Sources, method and limits page.