Last updated: June 2, 2025
In Ndjole, Gabon, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels helps you prevent sunburns and long-term skin damage, particularly in a region characterized by a tropical climate that can lead to elevated exposure risks. With peak UV Index values reaching 10 around midday, residents and visitors alike must stay vigilant during the hottest hours to enjoy the beautiful outdoors while protecting their skin. Whether you’re planning a relaxing day at the beach or a hike through nature, knowing the UV Index empowers you to make informed choices for your health.
The UV Index data for the day reveals a dramatic rise in sun exposure as the sun climbs higher in the sky. Starting at a mild 1 at 07:00, the index quickly escalates to 2 by 08:00 and reaches a moderate 4 by 09:00. The intensity peaks at a striking 10 from 12:00 to 13:00, indicating a high risk of harm from unprotected sun exposure. As the afternoon wanes, the index declines sharply, falling to 7 at 14:00 and dropping further to 5 at 15:00. The day concludes with noticeably lower values, settling back to 1 by 17:00 and finishing at a safe 0 after 19:00. It’s a perfect reminder to 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 | 4 | moderate | 30 min |
| 10:00 | 7 | 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 | 7 | high | 25 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 |
Throughout the year, UV index levels in the region display significant seasonal variations, with the highest risk months occurring from January to April and again from September to November, where the UV index remains consistently in the extreme category, peaking at 14 in April. During these months, the recommended burn time is as low as 10 minutes, emphasizing the critical need for sun protection. June and July experience a slight decrease, with a UV index of 10 (very high) and a burn time of 15 minutes, while August reverts back to extreme levels. Residents and visitors should exercise caution in these high-risk months by wearing protective clothing, using broad-spectrum sunscreen, and seeking shade to minimize UV exposure. The consistent threat of high UV levels underscores the importance of awareness and preparedness for outdoor activities year-round.
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 |
| Ndjole | 12 | 13 | 13 | 14 | 13 | 10 | 10 | 12 | 13 | 13 | 13 | 12 |
| Oyem UVI | 12 | 12 | 14 | 15 | 13 | 11 | 11 | 12 | 13 | 14 | 12 | 11 |