Last updated: July 2, 2025
In Mossendjo, Congo, being aware of the UV Index is crucial for safeguarding your skin health against the sun's harmful rays. Understanding UV levels can help you prevent sunburn and reduce the risk of long-term skin damage. With a tropical climate characterized by high temperatures and varying UV exposure throughout the day, residents and visitors alike should be vigilant, especially during peak hours when the index can reach as high as 9. Stay informed to enjoy the sun safely in this vibrant region!
The UV Index begins its ascent at 07:00 with a low of 1, gradually climbing to a moderate 2 by 08:00. As the day progresses, it soars to a peak of 9 between 12:00 and 13:00, signaling a high risk for unprotected skin. By 14:00, the intensity starts to wane, dropping to 7, and continues to descend through the late afternoon, resting at 4 by 15:00. As the sun moves lower in the sky, the UV levels diminish further, reaching 1 by 17:00 and tapering off to 0 by 19:00. If you're planning outdoor activities, stay cautious around midday when UV exposure is at its highest!
| 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 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | 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, seasonal UV Index values show significant changes, particularly during the first half. January through May sees an extreme UV Index of 13-14, with a burn time of only 10 minutes. The high-risk months for UV exposure are concentrated from March to May, where the UV Index peaks at 14 in March and April. As summer approaches, the values drop slightly in June and July to 9, categorized as very high, allowing 15 minutes of unprotected exposure before burning occurs. However, as we transition into late summer and fall, the UV Index increases again, peaking in August at 11. Residents and visitors are advised to take precautions year-round, especially during those high-risk months—wearing sunscreen, protective clothing, and limiting sun exposure during peak hours to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brazzaville UVI | 13 | 13 | 14 | 13 | 11 | 8 | 8 | 10 | 10 | 12 | 13 | 12 |
| Pointe-Noire UVI | 13 | 13 | 14 | 13 | 12 | 9 | 8 | 10 | 11 | 13 | 13 | 12 |
| Kayes UVI | 14 | 14 | 14 | 14 | 12 | 9 | 9 | 10 | 11 | 13 | 13 | 13 |
| Owando UVI | 12 | 12 | 14 | 14 | 13 | 10 | 10 | 10 | 13 | 13 | 12 | 11 |
| Dolisie UVI | 14 | 14 | 14 | 14 | 12 | 9 | 9 | 10 | 11 | 13 | 13 | 13 |
| Mossendjo | 13 | 13 | 14 | 14 | 13 | 9 | 9 | 11 | 12 | 13 | 13 | 12 |