UV Index in Saint-Louis, Senegal

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Saint-Louis, Senegal, where the sun shines bright year-round. With peak UV levels soaring to as high as 13 during midday, awareness of UV intensity helps prevent sunburn and protects skin health. The city's BWh climate brings intense sunlight, particularly in the hot months, raising the risk of overexposure. Stay informed and be proactive to ensure your time under the sun is safe and enjoyable!

Hourly UV Index in Saint-Louis

As the sun rises over the horizon, the UV Index starts low at 1 between 07:00 and 08:00, perfect for enjoying a morning stroll. However, by 09:00, it ramps up to 3, signaling a gentle increase in sun intensity. The real heat hits between 10:00 and 13:00, with the index soaring to a peak of 13 at 13:00, marking a time for caution under the peak sun. Afterward, as the afternoon sun begins to wane, the UV Index drops to 9 by 15:00 and continues to decline, returning back to a safe 1 by 18:00. If you're venturing out during this time, be sure to wear that sunscreen and seek shade during the midday hours for ultimate protection!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Saint-Louis

During the year, UV radiation fluctuates significantly, with the highest risk months being from March to October when the UV Index ranges from 12 to 14, categorized as extreme. In contrast, the winter months of January, February, and December have very high UV Index values of 8 to 10 and longer burn times of 15 minutes. Given this data, visitors and residents are strongly advised to take precautionary measures during these high-risk months by limiting sun exposure, wearing protective clothing, and using sunscreen, especially between 11 AM and 3 PM when UV intensity peaks. Staying informed and taking these steps can help mitigate the risks of sunburn and skin damage.

Monthly Maximum UV Index for Saint-Louis, Senegal

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Saint-Louis. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Saint-Louis, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Saint-Louis UV Index with Other Senegal Cities

The table above highlights how UV exposure in Saint-Louis compares to other major locations across Senegal. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Saint-Louis's solar exposure compared to other cities in Senegal. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pikine UVI	9	10	12	13	12	12	13	13	13	11	10	9
Dakar UVI	9	10	12	13	12	12	13	13	13	11	10	9
Thies Nones UVI	9	10	12	13	12	12	13	13	13	11	10	8
Thies UVI	9	10	12	13	12	12	13	13	13	11	10	8
Saint-Louis	9	10	12	14	13	13	13	13	13	12	10	8
Touba UVI	9	10	12	14	13	13	14	14	13	12	10	8