Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Sardasht, Iran, where the BWh climate can lead to significantly high UV exposure. Awareness of UV levels is essential not only for sunburn prevention but also for long-term skin health. With peak UV Index values reaching 12 around noon, it's vital to recognize the risks of overexposure during the sunniest hours. Armed with this knowledge, you can take proactive measures to protect your skin while enjoying the beautiful Sardasht sunshine!
As the day unfolds, the UV Index (UVI) reaches its peak around noon, soaring to a significant 12. Starting from a modest 2 at 7:00 AM, the intensity gradually escalates, hitting 4 by 8:00 AM and 6 by 9:00 AM. By 10:00 AM, the sun's rays intensify further, reflecting a 9 on the scale, ultimately culminating in a high of 11 at 11:00 AM. The sun remains fierce until 1:00 PM, maintaining an 11 before declining in the late afternoon. As the day wanes, the UVI decreases, dropping to 4 at 4:00 PM, then 2 at 5:00 PM, and winding down to a mere 0 by 7:00 PM. It's a clear reminder to relish the sun's warmth early on while taking precautions during the midday peak.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV levels exhibit significant seasonal changes. January starts with a UV Index of 7 (high), indicating a burn time of 25 minutes. As we move into February, the index rises to 8 (very high), reducing safe exposure to just 15 minutes. The spring months of March and April reach an extreme UV Index of 12, necessitating a burn time of only 10 minutes. May and July peak at 13, with the same critical exposure time. During the summer, the extreme conditions persist through August and September before tapering in October to a UV Index of 9 (very high). As the year closes, November and December see a return to lower UV levels (7 and 6 respectively), extending burn time back to 25 minutes. Therefore, visitors and residents should exercise caution from February to September—especially in the spring and summer months—by wearing protective clothing, applying sunscreen regularly, and limiting sun exposure during peak hours to minimize the risk of skin damage.
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 |
| Isfahan UVI | 5 | 7 | 10 | 10 | 13 | 13 | 12 | 11 | 10 | 9 | 6 | 4 |
| Sardasht | 7 | 8 | 12 | 12 | 13 | 12 | 13 | 12 | 12 | 9 | 7 | 6 |