Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Mayahi, Niger, where intense sun exposure peaks during the day. Awareness of UV levels not only aids in preventing sunburns but also plays a vital role in maintaining long-term skin health. With Mayahi's semi-arid climate characterized by high UV exposure—especially between 11 AM and 1 PM when the index reaches a staggering 13—it's essential to take precautions to protect your skin from harmful rays. By staying informed about local UV conditions, you can enjoy the sun safely and effectively.
The UV Index throughout the day reveals a dynamic pattern that peaks dramatically around noon. Starting from 1 at 07:00, it gradually climbs to 2 by 08:00, then elevates sharply to 5 at 09:00. The sun’s strength intensifies significantly, reaching a peak of 13 by 12:00 and maintaining this intensity until 13:00. As the afternoon progresses, the UV index begins to decline, dropping to 11 at 14:00, and further down to 8 by 15:00. The evening brings a gentle descent, winding down to 1 at 18:00 and resting at 0 by 19:00. For outdoor enthusiasts, it's clear that the midday hours demand vigilance against sun exposure, while the early morning and late afternoon provide more comfortable UV conditions.
| 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 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV index varies throughout the year, peaking during the summer months, particularly from March to September, when it frequently reaches extreme levels. The highest UV index of 13 occurs in March, April, July, and August, indicating a burn time of just 10 minutes for unprotected skin. The high-risk months are thus March through September, necessitating vigilant sun protection, especially during outdoor activities. Residents and visitors should be mindful to use broad-spectrum sunscreen, wear protective clothing, and seek shade whenever necessary, particularly during the peak hours of sunlight. In contrast, the UV index drops during the winter months of January, February, November, and December, where it is classified as very high. Despite this drop, individuals should remain cautious, as burn times are still notably short at 10 to 15 minutes.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alaghsas UVI | 9 | 10 | 11 | 13 | 12 | 12 | 11 | 12 | 11 | 10 | 9 | 8 |
| Agadez UVI | 9 | 10 | 11 | 13 | 12 | 12 | 11 | 12 | 11 | 10 | 9 | 8 |
| Maradi UVI | 10 | 11 | 13 | 12 | 11 | 11 | 13 | 13 | 12 | 11 | 10 | 10 |
| Niamey UVI | 10 | 12 | 13 | 12 | 11 | 12 | 13 | 13 | 12 | 11 | 10 | 9 |
| Mayahi | 10 | 11 | 13 | 13 | 12 | 11 | 13 | 13 | 12 | 11 | 10 | 10 |
| Zinder UVI | 10 | 11 | 13 | 13 | 12 | 12 | 13 | 13 | 12 | 11 | 10 | 10 |