Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Isna, Egypt, where the sun shines brightly in a BWh climate. With peak UV levels soaring as high as 12 during midday, awareness of these fluctuations helps protect against sunburn and long-term skin damage. By keeping track of the UV Index, you can enjoy the abundant sunshine while safeguarding your skin's health. Whether you're outdoors to explore the rich cultural heritage or simply soaking in the warm rays, knowing how to navigate the risks associated with high UV exposure is essential for safe, enjoyable experiences in this vibrant region.
At dawn, 7:00 AM, the UV Index is a mild 2, perfect for enjoying the early morning. As the day progresses, the intensity ramps up dramatically, peaking at 12:00 PM with a striking 12—the sun is at its fiercest, urging everyone to seek shade and stay protected. The UV Index begins to gradually decline after this peak, dipping to 10 at 1:00 PM and 8 by 2:00 PM, making the afternoon still quite bright but less intense. By the late afternoon, the UV levels drop further to 5 at 3:00 PM and continue to decrease, reaching a gentle 1 at 5:00 PM and maintaining that level into the evening hours until it finally settles at 0 after sunset at 7:00 PM. Overall, it's essential to be mindful of sun exposure during the height of the day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV levels undergo significant changes, with the most intense exposure occurring from March to September. This period features extreme UV Index levels of 11 to 12, where the recommended burn time can be as low as 10 minutes. The highest risk months for UV exposure are March, April, May, June, July, and August, necessitating extra precautions. Residents and visitors should take proactive measures during these months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen to minimize the risk of skin damage. As the UV Index starts to decline in October and November, it remains important to stay vigilant, although the burn time increases to 15 minutes. By December, while UV levels drop further, people should still be mindful as the UV Index remains at a high level of 6.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Port Said UVI | 4 | 6 | 9 | 10 | 11 | 11 | 11 | 10 | 9 | 8 | 5 | 4 |
| Alexandria UVI | 4 | 6 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 5 | 4 |
| Giza UVI | 5 | 7 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 6 | 5 |
| Cairo UVI | 5 | 7 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 6 | 5 |
| Suez UVI | 5 | 7 | 9 | 10 | 12 | 12 | 12 | 11 | 10 | 9 | 6 | 5 |
| Isna | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 9 | 8 | 6 |