Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Kayes, Congo, as it serves as a key indicator of ultraviolet radiation in the environment. Being aware of UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. Kayes, with its Aw climate, experiences significant UV exposure, particularly during the midday hours when the index peaks at 9. Protecting yourself from the sun's harmful rays is vital in this region known for its intense sun, making UV Index awareness an important part of daily life.
The UV index throughout the day exhibits a dynamic rise and fall, reflecting the sun's intensity. At 07:00, the index starts low at 1, gradually climbing to 2 by 08:00. By 09:00, it reaches a moderate 4, but excitement peaks at 12:00 with a striking 9, indicating a high risk for unprotected skin. The intensity tapers down after this noon pinnacle—falling to 8 at 13:00, then 6 at 14:00. As afternoon turns to evening, the index diminishes significantly, settling at 4 by 15:00, dropping to 2 at 16:00, and finally winding down to 1 by 17:00. As the sun sets, the index recedes completely, hitting 0 by 18:00, leaving a tranquil end to the day. Remember, during peak times, sun protection is crucial!
| 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 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index reveals significant seasonal variations, with the most extreme exposure recorded from January to April, where the index consistently sits at 14, necessitating a burn time of just 10 minutes. May presents a slight decrease to an index of 12, yet the risk remains high. During the summer months of June and July, the index drops to 9, categorized as very high, permitting a slightly extended burn time of 15 minutes. As summer transitions to fall, August and September see the index peak at 10 and 11 respectively, before returning to extreme levels of 13 in October, November, and December. Given this data, it's crucial for both residents and visitors to take proactive measures in sunscreen application and wear protective clothing, particularly between January and April, and during the transition from summer to fall. Staying vigilant about sun exposure during these high-risk months will help mitigate the harmful effects of UV radiation.
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 | 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 |