Last updated: June 2, 2025
In Zarrin Shahr, Iran, being informed about the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. Understanding UV levels can help prevent sunburn and reduce the risk of long-term skin damage, promoting overall skin health. In this BSk climate, where the sun's intensity peaks between 11 AM and 1 PM, it's essential to stay vigilant about UV exposure, especially during the summer months. With ratings soaring as high as 13, Zarrin Shahr residents must take practical steps to protect themselves when heading outdoors.
At 07:00 AM, the UV Index starts off low at 1, making it a safe time for early risers. As the sun ascends, the index rises steadily, reaching 3 by 08:00 AM. By 09:00 AM, it climbs to 6, indicating that sun protection becomes increasingly important. The real surge occurs from 10:00 AM to 12:00 PM, where the UV Index peaks significantly at 9 and then hits its maximum of 13 at 12:00 PM—a crucial window for being mindful of sun exposure. The intensity begins to taper off after 13:00 PM, dropping to 11 at 14:00 PM, and further declining to 8 by 15:00 PM. As the day winds down, the UV index falls to 5 at 16:00 PM, then further dwindles to 3 by 17:00 PM, and returns to a safe 1 by 18:00 PM, finally settling at 1 again by 19:00 PM. For those spending time outdoors, it's vital to take precautions during the peak hours when the UV Index is at its highest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels show significant seasonal variations, with high-risk months primarily occurring from March to September. During this period, the index peaks at 13, reaching extreme levels in May, June, July, and August, where the recommended burn time drops to just 10 minutes. Residents and visitors should be particularly vigilant during these months, proactively seeking shade, wearing protective clothing, and applying sunscreen frequently. The UV index begins to decrease in October, but remains at a very high level of 9, so caution is still advised. By November and December, the index falls to 6 and 4, categorizing it as high and moderate respectively, allowing for slightly longer exposure times without immediate risk. It’s essential to stay informed and adjust outdoor activities accordingly to minimize UV-related health risks.
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 |
| Zarrin Shahr | 5 | 7 | 10 | 11 | 13 | 13 | 12 | 12 | 11 | 9 | 6 | 4 |