Last updated: July 2, 2025
In Torbat-e Heydariyeh, Iran, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With the region's BSk climate, you'll find that UV levels can soar, particularly between late morning and early afternoon when they reach a peak of 12. Awareness of these levels empowers residents and visitors alike to take necessary precautions against harmful UV radiation, ensuring enjoyable outdoor activities while safeguarding against skin damage. Don't underestimate the sun's power—stay informed and protected!
Starting from early morning, the UV Index begins its ascent, peaking dramatically at 12 around noon. From 07:00, when it starts at a mild 2, it climbs steadily, reaching 4 by 08:00 and hitting 7 by 09:00. The intensity of UV radiation escalates significantly, reaching 9 at 10:00 and soaring to its zenith of 11 by 11:00. The sun’s rays are most potent at 12:00, with the index peaking at 12—a reminder to prioritize sun protection. As the afternoon progresses, the index gradually declines, dropping to 9 at 14:00, then to 7 by 15:00, and continuing its descent to 4 at 16:00. Finally, the evening brings relief as the UV Index falls to 2 at 17:00, and by sunset, it settles at a mere 1 by 18:00 and 19:00. This daily UV cycle highlights the importance of sun safety, especially during those peak hours!
| 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 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index demonstrates significant seasonal variation, peaking during the warmer months from March through August, where values reach extreme levels (UV Index 10-12), particularly in May, June, and July. During these months, the burn time shortens to as little as 10 minutes, indicating a heightened risk of skin damage from sun exposure. High-risk months include March, April, May, June, July, and August, all marked by very high to extreme UV indices. Residents and visitors should take necessary precautions, such as wearing sunscreen, protective clothing, and seeking shade, especially during peak sun hours to reduce the risk of sunburn and long-term skin damage. As the index decreases in the fall and winter months, November and December present lower risks, with moderate levels and longer burn times of 30 minutes. Nonetheless, it is advisable to remain vigilant and protect the skin during all months of the year.
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 |
| Torbat-e Heydariyeh | 4 | 6 | 9 | 10 | 12 | 12 | 12 | 11 | 10 | 8 | 5 | 4 |
| Isfahan UVI | 5 | 7 | 10 | 10 | 13 | 13 | 12 | 11 | 10 | 9 | 6 | 4 |