Climate Overview
The climate in Bawku is hot. The average annual temperature is 29°C and approximately 655mm of precipitation falls per year. August is the wettest month, receiving around 218mm of rainfall. Bawku is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: March, April, February. The coldest months are December, January, November, when temperatures can drop to 20°C.
Temperature
Bawku sees moderate temperature variation throughout the year, ranging from 20°C to 39°C. March is the hottest month, with daytime highs reaching 39°C and an average of 33°C. December is the coolest month, with minimum temperatures around 20°C and an average of 27°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 3°C shift in average temperatures.
Precipitation
Bawku is a relatively dry area, receiving approximately 655mm of precipitation annually, which averages out to around 55mm per month. The wettest month is August, averaging 218mm of rainfall. September and July also tend to see above-average precipitation. The driest month is December, with just 0mm. That's 218mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Bawku is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Bawku, which began on March 20, 2026. Bawku is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in March at around 39°C, while the coldest stretch bottoms out in December near 20°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 27 to 39°C. Rainfall is relatively light, with around 51mm over the season and a monthly average of 17mm. Winds are moderate at around 16km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 24 to 33°C. Rainfall is heavy, totalling around 403mm across the season with a monthly average of 134mm. Winds are moderate at around 16km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 22 to 36°C. Precipitation is moderate at around 199mm for the season, averaging 66mm per month. Winds are generally light, averaging 12km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 20 to 37°C. Precipitation is minimal, with only around 2mm for the entire season. Winds are moderate at around 15km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Bawku based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
