Climate Overview
The climate in Bolama is hot. The average annual temperature is 27°C and approximately 1798mm of precipitation falls per year. August is the wettest month, receiving around 599mm of rainfall. Bolama is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: November, October, December. The coldest months are January, February, March, when temperatures can drop to 24°C.
Temperature
Bolama has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is November, when average highs reach 29°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 24°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Bolama is a fairly wet location, receiving approximately 1798mm of precipitation annually, which averages out to around 150mm per month. The wettest month is August, averaging 599mm of rainfall. July and September also tend to see above-average precipitation. The driest month is January, with just 0mm. That's 599mm 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
Bolama is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in November, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 21km/h in winter, 24km/h in spring, 25km/h in summer, 19km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Bolama, which began on March 20, 2026. Bolama 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 November at around 29°C, while the coldest stretch bottoms out in January near 24°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 25 to 27°C. Precipitation is minimal, with only around 3mm for the entire season. Winds are moderate at around 24km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 1249mm across the season with a monthly average of 416mm. Winds are moderate at around 25km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 545mm across the season with a monthly average of 182mm. Winds are moderate at around 19km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 29°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are moderate at around 21km/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 Bolama 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.
