UV Index in Libreville, Gabon

Last updated: June 2, 2025

In Libreville, Gabon, being aware of the UV Index is crucial for maintaining optimal skin health and preventing sunburn. Understanding UV levels can help residents and visitors take necessary precautions against the potentially harmful effects of solar radiation. With its tropical climate and high UV exposure, particularly around midday—when the index can soar to 10—Libreville presents unique challenges for sun safety. Staying informed about UV readings empowers individuals to enjoy the abundant sunshine while protecting their skin from damage.

Hourly UV Index in Libreville

The UV Index throughout the day showcases a dynamic curve, peaking impressively between 12:00 PM and 1:00 PM with a remarkable score of 10, indicating a high risk of harm from unprotected sun exposure. As the sun rises, the index starts low at 1 by 07:00 AM, gradually increasing to 2 by 08:00 AM, before climbing more steeply to reach 6 by 10:00 AM. The intensity continues to rise until its zenith, with values of 9 at 11:00 AM and the maximum of 10 at noon. After this peak, the UV Index begins its descent, dropping to 8 by 2:00 PM, then gradually tapering off to 5 by 3:00 PM and further to 1 by late afternoon, ultimately falling to 0 by 7:00 PM. It's a reminder to stay protected 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	2	low	45 min
09:00	4	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 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 Libreville

During the year, UV exposure fluctuates notably, with the highest values occurring from February to April when the UV Index peaks at 14, categorized as extreme. In contrast, June and July see a slight dip to a UV Index of 10, labeled as very high, before rising again in August. The months of November through January consistently showcase an extreme exposure risk, with a UV Index of 12. Visitors and residents are strongly advised to take precautions during these high-risk months, particularly from February to April, ensuring appropriate sun protection measures such as wearing sunscreen, protective clothing, and limiting direct exposure during peak hours to maintain skin health.

Monthly Maximum UV Index for Libreville, Gabon

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

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

Libreville's solar exposure compared to other cities in Gabon. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Libreville	12	12	13	14	12	10	10	11	12	13	12	11
Port-Gentil UVI	12	12	13	14	13	10	9	12	12	13	13	12
Franceville UVI	13	13	14	14	13	9	10	11	12	13	13	12
Moanda UVI	13	13	14	14	13	9	10	11	12	13	13	12
Oyem UVI	12	12	14	15	13	11	11	12	13	14	12	11