Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Nahavand, Iran, where the sun's rays can be particularly intense. With a climate characterized as Csa, the risk of harmful ultraviolet radiation increases significantly, especially during the peak afternoon hours. Familiarizing yourself with daily UV levels can help you take proactive steps in sunburn prevention and maintaining skin health, ensuring that outdoor activities are both enjoyable and safe. As the UV Index peaks at 13 around noon, it's essential for residents to be aware of these levels to protect themselves from potential skin damage while enjoying the beautiful Nahavand landscape.
As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it jumps to 3, hinting at the day's potential for sun exposure. The UV intensity peaks dramatically at 11:00, reaching an intense 11, and remains blistering at 13 from 12:00 to 13:00. After this midday peak, the index gradually declines, dropping back to 9 by 15:00 and further to 3 by 17:00. As the day winds down, the UV Index dips back to a safe 1 by 18:00, making late evening the perfect time to relax outdoors without the worry of harmful UV rays. Remember to embrace the shade during those high noon hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, with high-risk months occurring from February to September. During this period, especially from May to August, the UV Index reaches extreme levels, peaking at 13 in May and June, indicating a burn time of just 10 minutes for unprotected skin. March and April also highlight very high exposure risks with indices of 9 and 10, respectively. Visitors and residents are strongly advised to take precautions during these months by wearing protective clothing, using sunscreen, and seeking shade during peak sun hours. In contrast, the UV Index decreases in the winter months, with January and December classified as moderate, allowing for safer outdoor activities without excessive sun safety measures.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Karaj UVI | 4 | 5 | 8 | 9 | 12 | 12 | 11 | 10 | 10 | 7 | 4 | 3 |
| Mashhad UVI | 4 | 5 | 8 | 10 | 12 | 12 | 12 | 11 | 10 | 7 | 4 | 3 |
| Tehran UVI | 4 | 6 | 8 | 9 | 13 | 12 | 11 | 10 | 10 | 7 | 5 | 3 |
| Tabriz UVI | 4 | 5 | 9 | 10 | 12 | 12 | 12 | 11 | 9 | 7 | 4 | 3 |
| Nahavand | 5 | 7 | 9 | 10 | 13 | 13 | 12 | 11 | 10 | 8 | 5 | 4 |
| Isfahan UVI | 5 | 7 | 10 | 10 | 13 | 13 | 12 | 11 | 10 | 9 | 6 | 4 |