The climate in Bolama during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Bolama and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (87°F), whilst at night 23°C (73°F) is normal.
|Daytime temperature||30.4°C 86.7°F|
|Nightly temperature||23°C 73.4°F|
|Average temperature||26.7°C 80.1°F|
|Daily sunshine||6.1 hrs|
|Avg rainfall||413 mm 16.3 ins|
|Rainy days||19 days|
|Sea temperature||28.1°C 82.6°F|
|Windspeed||4.7kph 3 mph|
On average September is the 3rd wettest month of the year in Bolama with around 413mm 16.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.1 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Bolama in September 2021.
|Hottest month:||May||34°C 93.2°F|
|Driest month:||April||0mm 0ins|
|Coldest month:||December||31.4°C 88.5°F|
|Wettest month:||August||664mm 26.1ins|