UV Index
UV Index
Today's UV index in Bissau, Guinea-Bissau 
will be up to 9.8, indicating a very high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-10
With a UV index of 9.8 in Bissau, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
Bissau, Guinea-Bissau, typically has a UV index that ranges from moderate to high, especially during the hottest months, making the sun quite strong most of the year. The UV index peaks around March and April, just before the rainy season begins.
The weather in Bissau has two main seasons: a rainy season from June to October with heavy rains and high humidity, and a dry season from November to May, which is hotter and less humid. Temperatures stay warm all year round, usually between 24°C and 31°C.
Compared to nearby countries like Senegal and Guinea, Bissau has a more pronounced rainy season with more rainfall. Its dry season is also a bit longer than some neighboring areas, thanks to its location near the Atlantic Ocean, which influences its climate.
See the UV index hour by hour for Bissau, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.