UV Index in Port-Gentil, Gabon

Last updated: June 2, 2025

Understanding the UV Index in Port-Gentil, Gabon is crucial for protecting your skin health and preventing sunburn, especially given the city's Aw climate, characterized by significant humidity and abundant sunlight. As UV levels can climb sharply throughout the day—peaking at a dangerous 10 around noon—awareness of these fluctuations can help residents and visitors alike make informed decisions about sun exposure. By tracking the UV Index, you can take proactive measures to shield yourself from harmful rays, ensuring a safe and enjoyable experience under the vibrant Gabonese sun.

Hourly UV Index in Port-Gentil

The hourly UV Index data paints a vivid picture of sun exposure throughout the day. Starting off with a minimal reading of 1 at 07:00, the index gradually climbs as the sun rises. By 09:00, it hits a moderate 4, and by 10:00, it surges to 6, signaling the onset of peak sun intensity. The UV Index peaks at an impressive 10 at 12:00, indicating a high risk of harm from unprotected sun exposure. As the afternoon unfolds, the index gradually dips, dropping to 5 by 15:00, then treading back down to 1 by 17:00 and remaining there until sunset. As night approaches at 19:00, the UV Index falls to 0, reminding us of the day’s sun-soaked journey and the importance of sun safety during those intense midday 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	9	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 Port-Gentil

Throughout the year, UV index values demonstrate significant seasonal changes, with extreme exposure categories dominating from January to April and resuming again in August through November. The high-risk months for UV exposure occur from January to April and in August and September, where the UV Index consistently lies between 12 to 14. During these periods, residents and visitors should exercise caution by limiting direct sun exposure, wearing protective clothing, and applying sunscreen regularly, particularly if planning outdoor activities. As a reminder, even during lower UV index months like June and July, where the index is 10 and 9 respectively, staying vigilant about UV protection is crucial to ensure skin safety.

Monthly Maximum UV Index for Port-Gentil, Gabon

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

The table above highlights how UV exposure in Port-Gentil 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.

Port-Gentil'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 UVI	12	12	13	14	12	10	10	11	12	13	12	11
Port-Gentil	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