Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Tlemcen, Algeria, where the sun shines brightly in a Mediterranean climate. Being aware of UV levels helps to prevent sunburn and protect skin health, especially during peak hours when intense sunlight can lead to harmful effects. With peak UV Index readings reaching as high as 10 between noon and 1 PM, the risk of overexposure increases significantly. By staying informed about the UV Index in Tlemcen, you can enjoy the beautiful outdoor spaces while safeguarding your skin.
The UV Index throughout the day showcases a dynamic pattern of sun exposure, peaking during the afternoon. At 07:00, the index starts low at 1, gradually increasing as the sun rises. By 10:00, it reaches 6, signaling a rise in sun intensity, culminating in a striking 10 from 12:00 to 13:00, indicating a high risk of harm from unprotected sun exposure. As the day progresses, the UV Index declines, dropping to 3 by 17:00, and steadily returning to 1 by 19:00. This data highlights the importance of sun protection, especially during midday when the UV Index 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 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant seasonal changes, peaking during the summer months. From January to February, UV levels are moderate, with a burn time of 30 minutes. As spring arrives in March, the UV Index elevates to 8 (very high), reducing burn time to 15 minutes, and it continues to climb, reaching a peak of 12 in June (extreme), where the burn time shortens to just 10 minutes. The danger remains high in July and August, with UV levels at 11 and 10, respectively. September sees a slight drop, but still advises caution with a UV Index of 8. As fall approaches in October, levels decrease to 7 (high), permitting a burn time of 25 minutes, before returning to moderate levels in the winter months of November and December. Residents and visitors should remain vigilant from March through August, as these are the high-risk months for UV exposure, and it is recommended to use sunscreen, wear protective clothing, and seek shade during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Algiers UVI | 3 | 5 | 7 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
| Boumerdas UVI | 3 | 5 | 7 | 8 | 10 | 11 | 11 | 9 | 8 | 6 | 4 | 3 |
| Constantine UVI | 3 | 5 | 7 | 9 | 10 | 11 | 11 | 10 | 8 | 7 | 5 | 3 |
| Oran UVI | 3 | 5 | 7 | 9 | 10 | 11 | 11 | 10 | 8 | 7 | 5 | 3 |
| Tlemcen | 3 | 5 | 8 | 9 | 10 | 12 | 11 | 10 | 8 | 7 | 5 | 3 |
| Tebessa UVI | 4 | 5 | 8 | 9 | 10 | 12 | 11 | 10 | 9 | 7 | 5 | 4 |