Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Khowrmuj, Iran, where the BSh climate can lead to elevated sun exposure risks. With peak UV levels reaching 11 around noon, awareness of these fluctuations is essential to prevent sunburn and protect skin health. Ultraviolet radiation can cause both immediate harm and long-term damage, making it vital to know when to seek shade or apply sunscreen. As Khowrmuj experiences intense sunlight, especially during the hotter months, being informed about UV levels is key to enjoying the sun safely.
As the sun rises, the UV Index begins its ascent, peaking at an impressive 11 between noon and 1 PM—a clear signal for sun safety. Starting at a modest 1 at 7 AM, the index quickly climbs to 10 by 11 AM, indicating that midday sun is potent. From there, it maintains a high of 11, making outdoor activities during this time a cause for caution. Gradually, the intensity wanes, dipping back to 2 by 5 PM, and sinking to a gentle 1 by 7 PM. Be aware and protect yourself during those peak hours—your skin will thank you!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Seasonal changes in the UV Index reveal significant fluctuations throughout the year, with the highest risk occurring from May to August, when the UV Index reaches extreme levels (11-13) and recommended burn times drop to just 10 minutes. March and April also present high exposure risks, categorized as very high with UV Index values of 10 and burn times of 15 minutes. Visitors and residents are advised to exercise caution during these high-risk months by seeking shade, wearing protective clothing, and applying sunscreen regularly to minimize the risk of UV-related harm. While January, February, November, and December maintain a higher risk with UV Index values between 5 and 7, January, November, and December have increased burn times of 25 to 30 minutes, indicating a lower urgency for immediate sun protection. Always be vigilant and prioritize skin safety throughout 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 |
| Khowrmuj | 6 | 7 | 10 | 10 | 13 | 12 | 11 | 11 | 10 | 8 | 6 | 5 |
| Isfahan UVI | 5 | 7 | 10 | 10 | 13 | 13 | 12 | 11 | 10 | 9 | 6 | 4 |