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UV Index in Bissau, GW

UV index


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Today's UV index in Bissau, Guinea-Bissau Guinea-Bissau will be up to 7.9, indicating high risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.


Today's tips

With Bissau's UV index reaching 7.9, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours between 10 a.m. and 4 p.m., when UV rays are strongest.

Bissau Weather

Read more here about the climate and sun exposure in and around Bissau.

UV Index in Bissau

The UV index in Bissau, Guinea-Bissau can reach high levels throughout the year. On a scale from 0 to 11, with higher values indicating greater risk of harm from unprotected sun exposure, Bissau often experiences UV index ratings above 8 (very high). It is important to take precautions such as wearing sunscreen, protective clothing, and sunglasses to minimize the risk of sunburn and skin damage.

Weather Seasons

UV index

Bissau experiences two distinct weather seasons, namely a wet season and a dry season. The wet season, which occurs from June to October, brings heavy rainfall and high humidity, with temperatures averaging around 26-28 °C (79-82 °F). The dry season, from November to May, is characterized by lower humidity, cooler temperatures ranging between 22-24 °C (72-75 °F), and little to no rainfall.

Bissau's Climate

Compared to its region, Bissau receives a significant amount of sun exposure due to its location along the West African coast. The region experiences a tropical climate, which means there are no extremes in temperature but rather consistent warmth throughout the year. However, Bissau may be slightly cooler than other parts of West Africa due to its coastal proximity, resulting in a more moderate climate.

Annual Sun Radiation

The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Bissau. It's designed to provide you with a better understanding of the yearly weather and sun exposure.


* This page's content about the UV index in Bissau (Guinea-Bissau) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.