Last updated: August 1, 2025
Understanding the UV Index is crucial for residents of Oyem, Gabon, where the combination of a tropical rainforest climate and high sun exposure can lead to significant skin health risks. By being aware of UV levels throughout the day, you can take proactive steps to prevent sunburn and long-term skin damage. Here in Oyem, UV Index readings peak between 10:00 AM and 2:00 PM, reaching levels as high as 11—indicating a very high risk of harm from unprotected sun exposure. Stay informed and protect your skin with appropriate measures to enjoy the sunny days safely!
The UV Index for the day presents a clear picture of sun intensity, starting off gentle in the early hours. At 7:00 AM, it begins at a mild 1, increasing to 2 by 8:00 AM. As the sun rises higher, the index climbs rapidly; by 10:00 AM, it reaches 7 and peaks at an intense 11 around 12:00 PM and 1:00 PM. After this zenith, the levels gradually decline, dropping to 9 by 2:00 PM, 6 at 3:00 PM, and settling back to a safe 1 by 5:00 PM. The UV exposure diminishes further, reaching a low of 0 by 7:00 PM. Stay protected during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 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 | 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 |
Throughout the year, the UV Index remains consistently high, with exceptionally extreme levels noted from January to November. The peak occurs in April with a UV Index of 15, followed closely by March and October at 14. High-risk months that demand extra caution include March, April, and October due to their higher UV readings. Visitors and residents alike should take proactive measures against sun exposure—even in December and January, when the UV Index is still significant at 12. It is crucial to apply sunscreen, wear protective clothing, and seek shade during peak sun hours to mitigate the risks of skin damage. Remember, burn times are as little as 10 minutes across the board, emphasizing the importance of vigilance in sun safety.
UV Risk Categories
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 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 | 12 | 12 | 14 | 15 | 13 | 11 | 11 | 12 | 13 | 14 | 12 | 11 |