September weather forecast and climate
Bolama, Guinea-Bissau

• Average sea temperature in September: 27.8°C

The best month for swimming (with the highest average sea temperature) is November (28.6°C).
The coldest month (with the lowest average sea temperature) is February (25.4°C).

• Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.8h).
Months with shortest days are January and December (Average daylight: 11.5h).