UV Index in Sien, Burkina Faso

Last updated: June 2, 2025

In Sien, Burkina Faso, being aware of the UV Index is crucial for protecting your skin against harmful ultraviolet rays. Understanding UV levels helps prevent sunburn and long-term skin health issues, making knowledge of this index essential for residents and visitors alike. With a tropical BSh climate, Sien experiences significant UV exposure, particularly during peak hours—where levels can reach a striking 12. Staying informed about these risks can empower everyone to enjoy the sun safely, ensuring that outdoor activities remain a healthy and enjoyable experience.

Hourly UV Index in Sien

The UV Index for the day reveals a dramatic rise in intensity as the sun climbs higher in the sky. Starting from a low 1 at 07:00, the index surges to a peak of 12 by 12:00, indicating a very high risk of harm from unprotected sun exposure. With the peak times around 11:00 and 12:00 registering 11 and 12 respectively, caution is strongly advised. As the afternoon progresses, the index gradually declines, dropping to 10 at 14:00 and then tapering off to 6 by 15:00. The evening brings further relief, with values dwindling back to 1 by 17:00 and reaching 0 at 19:00. Be sure to protect yourself during those peak hours!

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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Sien

The UV Index experiences significant variation throughout the year, with highest levels occurring from March to September, peaking at 14 in both July and August. These months are classified as having an extreme exposure category, where the burn time is only 10 minutes, indicating an increased risk for skin damage. Conversely, January and November have a very high UV Index of 10, while December sees a slight reduction to 9. Visitors and residents are strongly advised to take precautions during these high-risk months, such as wearing protective clothing, applying sunscreen regularly, and seeking shade to minimize UV exposure and prevent sunburn.

Monthly Maximum UV Index for Sien, Burkina Faso

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Sien. 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 Sien, 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 Sien UV Index with Other Burkina Faso Cities

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

Sien's solar exposure compared to other cities in Burkina Faso. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Ouahigouya UVI	10	11	12	13	12	12	14	14	12	11	10	9
Sien	10	11	12	13	12	12	14	14	13	12	10	9
Koudougou UVI	10	11	12	13	12	13	13	14	13	12	10	9
Ouagadougou UVI	11	11	12	13	12	13	13	14	13	12	10	9
Bobo-Dioulasso UVI	11	11	12	13	13	13	13	14	14	12	10	10
Banfora UVI	11	11	12	13	13	13	13	14	14	12	10	10