Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of An Nimas, Saudi Arabia, a region characterized by its hot desert climate (BWh). With temperatures soaring and the sun’s rays reaching their peak, awareness of UV levels becomes essential for sunburn prevention and maintaining skin health. During the hottest hours, particularly from 10 AM to 1 PM when the UV Index can spike to 12, the risk of harmful exposure significantly increases. By keeping an eye on the UV Index, you can better protect yourself and enjoy the sunny days that An Nimas has to offer!
As the day unfolds, the UV Index begins its climb, starting at a modest 1 at 07:00. By 08:00, it rises to 3, signaling that sunlight is becoming more potent. But the real intensity hits around 10:00, with the index soaring to 9, peaking at 12 by 12:00. This midday sun delivers the highest UV radiation, reaching its zenith at 11 by 11:00. Afterward, the index begins its descent, dropping to 9 at 14:00, before tapering off to 5 by 15:00, and dwindling to 3 at 16:00. By evening, the UV levels return to 1 at 17:00, and fade to 0 by 19:00, wrapping up a significant day under the sun. Stay protected during those peak hours when UV exposure 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 | 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 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV index levels fluctuate significantly, with January and February marking the beginning of a high-risk period, both having a UV index of 10 and a burn time of just 15 minutes. As spring approaches, March through August presents the most hazardous months, with an extreme category index peaking to 13 in March, April, and May, and remaining just below at 12 during June and July. Visitors and residents alike should take extra precautions during these months, with burn times dropping to 10 minutes. While September through November sees a slight decrease, the UV index remains concerning, particularly in September at 12, and November at 9. December concludes the year with a UV index of 8, still necessitating vigilant sun protection. Overall, from March to September, sun safety should be a top priority, emphasizing the importance of seeking shade, wearing protective clothing, and applying sunscreen regularly.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Riyadh UVI | 7 | 8 | 10 | 10 | 12 | 11 | 11 | 10 | 11 | 9 | 7 | 6 |
| Mecca UVI | 8 | 9 | 11 | 12 | 13 | 11 | 11 | 11 | 10 | 10 | 8 | 7 |
| Jeddah UVI | 8 | 9 | 11 | 12 | 13 | 11 | 11 | 11 | 10 | 10 | 8 | 6 |
| Sultanah UVI | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 9 | 8 | 6 |
| Medina UVI | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 9 | 8 | 6 |
| An Nimas | 10 | 10 | 13 | 13 | 13 | 12 | 12 | 11 | 12 | 11 | 9 | 8 |