Last updated: June 2, 2025
Awareness of the UV Index is vital for residents of Ja`ar, Yemen, where the BWh climate exposes individuals to varying levels of ultraviolet radiation throughout the day. Understanding these UV levels is crucial for preventing sunburn and promoting overall skin health, especially during peak exposure times, when values can reach as high as 10. With significant risks typically around midday, it's essential for locals to stay informed and take protective measures against harmful UV rays to enjoy the sun safely.
As the sun rises, the UV Index begins its ascent, peaking at a robust 10 between 11:00 and 12:00. This is the point when sun safety is crucial, as the intensity of ultraviolet radiation can cause harm to unprotected skin in just minutes. The morning starts with a low reading of 1 at 07:00, and steadily climbs to 3 by 08:00, before reaching a moderate 5 at 09:00. By 10:00, the index surges to 8, signaling that it's time to seek shade or apply sunscreen. In the afternoon, it gradually declines from 9 at 13:00 to 4 at 15:00, and continues to drop to a mere 1 by the evening, making those twilight hours notably safer for outdoor activities. As the day wraps up around 19:00, a calm 0 confirms that the UV threat has vanished, leaving the sky clear for stargazing. Stay informed and protect your skin during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV Index values fluctuate significantly, with high-risk months occurring primarily from February to September. During this period, the UV Index often reaches extreme levels, peaking at 14 in April and May, which poses a serious risk for sunburn within as little as 10 minutes of unprotected exposure. January, June, and November still present higher risks with very high UV indices of 10, necessitating caution. As October and December approach, the UV levels gradually decrease, yet they still require vigilance, especially as burn times remain short. Visitors and residents are advised to wear protective clothing, apply broad-spectrum sunscreen, and seek shade during peak sun hours, particularly from February to September, to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Al Hudaydah UVI | 9 | 10 | 11 | 13 | 12 | 10 | 9 | 9 | 9 | 9 | 8 | 8 |
| Aden UVI | 10 | 11 | 13 | 14 | 13 | 10 | 11 | 12 | 10 | 10 | 9 | 9 |
| Ja`ar | 10 | 12 | 13 | 14 | 14 | 10 | 12 | 12 | 11 | 11 | 10 | 9 |
| Taiz UVI | 10 | 12 | 13 | 14 | 13 | 10 | 12 | 12 | 11 | 11 | 10 | 9 |
| Mukalla UVI | 11 | 12 | 13 | 14 | 14 | 12 | 12 | 12 | 12 | 11 | 10 | 9 |
| Sanaa UVI | 12 | 13 | 15 | 16 | 15 | 14 | 13 | 13 | 14 | 13 | 11 | 10 |