Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Khark, Iran, where the sun's rays can pose significant risks to skin health. With UV levels peaking at 11 around midday, awareness of the UV Index can help people prevent sunburn and lower the risk of long-term skin damage. Khark's BSh climate is characterized by hot summers, leading to high UV exposure, especially during peak hours. By staying informed about UV levels, you can enjoy the sunshine safely while protecting your skin!
The UV Index throughout the day paints a vivid picture of the sun's intensity. At 7:00 AM, the day begins with a gentle UVI of 1, making it safe for early risers. By 8:00 AM, it ticks up to 2, still in the low range. As the sun climbs higher, the index jumps to 4 at 9:00 AM, indicating a moderate level of UV radiation. The peak arrives at 12:00 PM and 1:00 PM, where the index soars to an alarming 11, highlighting the need for sun protection during these hours. Fortunately, as the afternoon progresses, the levels start to decline, dropping to 10 by 2:00 PM and then to 7 and 5 through 3:00 PM and 4:00 PM. By 5:00 PM, it settles back to 2, and by 6:00 PM, a return to the safer 1 concludes a day dominated by high UV intensity. Remember, at high levels, sun safety is vital!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | 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 |
Throughout the year, UV index levels fluctuate significantly, indicating varying risks for sun exposure. The high-risk months are March to June, with the UV index reaching 11 during May and June, categorized as extreme, and a mere 10-minute burn time. April also presents dangers with a UV index of 10, requiring vigilance. As summer transitions to fall, July to September maintain high levels but taper off slightly, with indices around 8 to 10. In contrast, January, November, and December feature more moderate levels, with an index of 4 to 5 and a safer 30-minute burn time. Visitors and residents are advised to take precautions during peak months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during midday hours when UV exposure is at its highest. Staying informed and prepared can help mitigate health risks associated with UV radiation.
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 |
| Khark | 5 | 6 | 9 | 10 | 11 | 11 | 10 | 10 | 8 | 7 | 5 | 4 |
| 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 |