Last updated: July 2, 2025
In Djelfa, Algeria, staying informed about the UV Index is crucial for protecting your skin from harmful ultraviolet radiation. Understanding UV levels is essential not only for preventing painful sunburns but also for maintaining long-term skin health, especially in a region characterized by a semi-arid climate (BSk) that can produce intense sun exposure. During peak hours, particularly between 11 AM and 1 PM, UV levels in Djelfa can reach as high as 11, indicating a very high risk of harm from unprotected sun exposure. By being aware of these levels, you can take proactive measures to enjoy the sun safely while safeguarding your health.
The UV Index demonstrates a clear peak in intensity throughout the day, showcasing the need for sun protection during certain hours. Starting from a low of 1 at 07:00, the index rises steadily, reaching 4 by 09:00, before surging to a powerful 11 at midday. This intense level of UV radiation persists until 13:00, emphasizing the risk during these prime hours. As the afternoon progresses, the index gracefully declines, registering 9 at 14:00 and tapering off to a more moderate 3 by 17:00. By evening, it drops back to 1, signaling a safe window for outdoor activities as the sun sets. Be mindful of these fluctuations and stay protected during peak hours!
| 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 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variation, peaking in the summer months. From January and February, the UV Index remains in the moderate range (4-5), allowing for 30 minutes of safe sun exposure. However, by March, it escalates to very high levels (8-10), with a notably reduced safe burn time of just 15 minutes. The peak hazard occurs during June and July, when the UV Index reaches an extreme level of 11, necessitating careful sun protection as even brief exposure can cause burns in 10 minutes. As summer transitions into fall, the UV Index gradually decreases, settling at high (7) in October and back to moderate levels (5-4) by November and December. Visitors and residents are advised to remain vigilant, particularly from March through August, applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours 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 |
| 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 |
| Djelfa | 4 | 5 | 8 | 10 | 10 | 11 | 11 | 10 | 9 | 7 | 5 | 4 |
| Tebessa UVI | 4 | 5 | 8 | 9 | 10 | 12 | 11 | 10 | 9 | 7 | 5 | 4 |