Last updated: July 2, 2025
Understanding the UV Index is essential for residents and visitors in Arlit, Niger, a region known for its arid climate and intense sunlight. With peak UV levels soaring to 11 around midday, being aware of these readings helps you prevent sunburn and protect your skin health from harmful UV radiation. Given Arlit's hot desert conditions, the risk of overexposure is significant, making it crucial to monitor the UV Index regularly and take appropriate precautions. Whether you’re enjoying outdoor activities or simply going about your day, staying informed empowers you to enjoy the sun safely.
As the day unfolds, the UV Index tells a compelling story of rising intensity. Starting at 07:00, it’s a gentle 1, perfect for early risers. By 08:00, it creeps up to 2, hinting at the sun's growing presence. The real surge begins at 09:00, when the index hits 4, indicating a stronger bite. At 10:00, it skyrockets to 7, and by 11:00, we reach 9—a clear signal to slather on the sunscreen. The peak occurs at 12:00, with a blistering 10 that calls for immediate protection. The intensity continues to rise, reaching its max of 11 at 13:00, before the afternoon gradually cools down; 14:00 drops to 9, with the UV Index steadily declining to 6 by 15:00, and further retreating to a 2 at 17:00. Finally, as twilight approaches, it wanes to 1 at 18:00, and by 19:00, it fades to 0, marking the end of an exceptionally radiant day. Stay sun-smart!
| 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 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, seasonal UV changes indicate significant variations in exposure risk, with the highest UV Index recorded from March to September where it reaches extreme levels of 10 to 13. The high-risk months for UV exposure are March through September, during which the recommended burn time is as low as 10 minutes. Visitors and residents should take these warnings seriously by practicing sun safety measures such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially between 10 a.m. and 4 p.m. when UV radiation is strongest. In the cooler months of October to February, UV levels drop but remain at a very high category, with burn times of 15 minutes, so precautions should still be followed.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arlit | 9 | 10 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 10 | 9 | 8 |
| 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 |
| Zinder UVI | 10 | 11 | 13 | 13 | 12 | 12 | 13 | 13 | 12 | 11 | 10 | 10 |