Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Qal`at Bishah, Saudi Arabia, especially in the context of its desert climate characterized by hot, arid conditions. With UV levels peaking between 10:00 AM and 2:00 PM, reaching a high of 13, being aware of these fluctuations can significantly aid in sunburn prevention and promote overall skin health. As you navigate daily activities in this sun-drenched locale, remember that even moderate exposure can pose risks. Staying informed about the UV Index empowers you to enjoy the outdoors safely while protecting your skin from harmful rays.
As the sun rises, the UV Index begins to climb, starting at a low 1 at 7:00 AM. By 9:00 AM, it reaches 6, signaling that it's time to pay attention to sun safety. The peak intensity arrives at 12:00 PM, with a high of 13, indicating potentially harmful radiation. This resplendent midday sun shines brightly until about 2:00 PM, when the index decreases to 10. As the afternoon progresses, the UVI drops to 6 by 3:00 PM, eventually tapering off to a mild 1 by 5:00 PM and lingering at 0 after 7:00 PM. Be sure to protect your skin during the hours of peak exposure!
| 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 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 6 | high | 25 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, the UV Index exhibits significant seasonal changes, with the highest risk of UV exposure occurring from March to October. These months consistently show extreme levels, peaking in March, April, and May with an index of 13, resulting in a burn time of just 10 minutes. Visitors and residents should particularly note that from March through September, the UV Index remains primarily in the extreme category, making it critical to protect skin with sunscreen, clothing, and shade. High-risk months include February, when the index reaches 10, and significantly during the interval of March to May, where protective measures are essential. As winter and fall approach, the UV levels drop to very high in January, February, November, and December, allowing for a burn time of up to 15 minutes but still necessitating caution. To ensure safety, everyone is advised to check the daily UV Index and take appropriate precautions, especially during these high UV months.
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 |
| Qal`at Bishah | 9 | 10 | 13 | 13 | 13 | 12 | 12 | 11 | 12 | 11 | 9 | 8 |