Last updated: August 1, 2025
Understanding the UV Index in Koulamoutou, Gabon, is essential for safeguarding your skin health and preventing sunburns. With an Aw climate, the region experiences varying UV levels throughout the day, peaking at 10 between noon and 1 PM, posing significant exposure risks. By staying informed on these UV levels, residents can take proactive measures to protect themselves from harmful rays, ensuring safe outdoor activities while enjoying the vibrant beauty of Koulamoutou. Remember, awareness is the first step towards healthier sun habits!
The UV Index for the day reveals a significant fluctuation in intensity, peaking at 10 during the midday hours (12:00 PM and 1:00 PM), indicating a high risk of harm from unprotected sun exposure. Early risers will find the sun’s rays quite mild at 1 and 2 between 7:00 AM and 9:00 AM. However, as the morning progresses, the UV intensity surges to 7 by 10:00 AM and reaches its zenith with a strong 9 at 11:00 AM. After the peak, the levels gradually decline, dropping to 5 by 3:00 PM, and diminishing to 1 by 5:00 PM, with the evening bringing a return to safety as it falls to 0 by 7:00 PM. Remember to protect your skin during the peak hours, especially between 11:00 AM and 1:00 PM!
| 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 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal fluctuations, with the highest readings occurring from January to April, where levels reach 13-14, categorized as extreme and necessitating a very short burn time of only 10 minutes. May marks a slight decrease to UV Index 13, yet the risk remains high. From June to July, the index stabilizes at 10, categorized as very high, allowing for slightly longer exposure of 15 minutes before burning. As summer fades, August sees a jump back to an extreme index of 11, followed by a return to 13 in September and a gradual decrease into late fall with consistent levels until December, where the UV Index sits at 12. Visitors and residents are advised to take high precaution during these months, particularly from January through April and during late summer in August, using protective measures such as sunscreen, hats, and sunglasses to mitigate harmful UV exposure.
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 |
| Koulamoutou | 13 | 13 | 14 | 14 | 13 | 10 | 10 | 11 | 13 | 13 | 13 | 12 |
| Oyem UVI | 12 | 12 | 14 | 15 | 13 | 11 | 11 | 12 | 13 | 14 | 12 | 11 |