Last updated: July 2, 2025
In Chlef, Algeria, understanding the UV Index is crucial for protecting your skin from harmful UV rays. The UV Index provides vital information about the intensity of sun exposure, helping residents and visitors alike to prevent sunburn and maintain overall skin health. With Chlef's Mediterranean climate, characterized by hot, dry summers and an abundance of sunshine, it's essential to stay informed about daily UV levels. On peak days, UV indexes can soar to 11, indicating an exceptionally high risk of harm from unprotected sun exposure. By monitoring the UV Index, you can enjoy the beautiful weather while safeguarding your skin from potential damage.
The UV Index steadily climbs as the day progresses, starting from a mild 1 at 7:00 AM and reaching a peak of 11 by 1:00 PM. Sun-seekers and outdoor enthusiasts should be mindful, as the index hits a high of 10 at 12:00 PM, signaling significant UV exposure. After this peak, the index gradually decreases, dropping to 8 by 3:00 PM, and continuing to decline to 1 by 7:00 PM. For safe sun enjoyment, it’s best to take precautions during those high UV hours, particularly between 11:00 AM and 2:00 PM. Remember to sport your hats and sunscreen!
| 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 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV Index levels, impacting sun exposure and safety for both visitors and residents. From January to February, the UV Index starts at a moderate level of 3 and rises to 5, allowing for approximately 30 minutes of safe sun exposure. March sees an increase to a high level of 7 (25 minutes burn time), while April and May reach very high levels of 9 and 10, significantly reducing burn time to just 15 minutes. June and July peak with an extreme UV Index of 12 and 11, respectively, and a mere 10 minutes of exposure can lead to burns. August and September maintain a very high risk before decreasing to a high level in October (burn time of 25 minutes). Finally, November and December return to a moderate risk with UV Index levels of 4 and 3. To protect yourself during the high-risk months of April through September, it’s crucial to wear sunscreen, seek shade, and limit sun exposure, especially around midday, to minimize the risk of skin damage.
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 |
| Chlef | 3 | 5 | 7 | 9 | 10 | 12 | 11 | 10 | 8 | 7 | 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 |
| Tebessa UVI | 4 | 5 | 8 | 9 | 10 | 12 | 11 | 10 | 9 | 7 | 5 | 4 |