UV Index in Port-Gentil, Gabon

Last updated: August 1, 2025

In Port-Gentil, Gabon, awareness of the UV Index is essential for maintaining skin health and preventing sunburn. With the region's tropical climate, residents and visitors alike are often exposed to high levels of ultraviolet radiation, especially during midday hours. Understanding UV levels can empower you to take the necessary precautions to protect your skin from harmful effects. For instance, at noon in Port-Gentil, the UV Index peaks at 10, indicating a high risk for harm from unprotected sun exposure. By staying informed and planning outdoor activities accordingly, you can enjoy the beauty of this vibrant coastal city while prioritizing your health.

Hourly UV Index in Port-Gentil

The UV Index for today presents a clear pattern of sun intensity, peaking sharply in the early afternoon. Starting off with a low index of 1 at 7 AM and remaining consistent at the same level until 9 AM, the sun's rays gradually intensify. By 10 AM, the index rises to 6, reaching a notable 8 at 11 AM, and soaring to a maximum of 10 between 12 PM and 1 PM—the critical hours for sun exposure. As the day progresses, the intensity begins to decline, dropping back to 8 by 2 PM, then tapering down to 5 by 3 PM. The late afternoon and evening bring a return to safer levels, with the index falling to 1 at 5 PM and fading to 0 by 7 PM. For those planning outdoor activities, it's essential to stay protected during the 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	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	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 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