Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Khost, Afghanistan, where the climate can expose individuals to significant ultraviolet (UV) radiation. With peak UV levels reaching up to 13 around midday, being aware of these levels is essential for preventing sunburn and protecting skin health. In this region characterized by a Cfa climate, the sun can be particularly intense, increasing the risks associated with UV exposure. By monitoring the UV Index, you can take proactive measures to stay safe under the sun and enjoy the beautiful outdoors without compromising your skin's integrity.
At dawn, the UV Index starts gently at 3 around 07:00, but as the sun climbs higher, so does the intensity. By 09:00, it reaches 9, signaling a peak in midday sun exposure. The zenith occurs at 11:00, with an impressive 13—a clear reminder to don sunscreen and seek shade. The index slightly dips to 12 by 12:00, before declining gradually throughout the afternoon. At 15:00, it drops to 5, and by 17:00, it’s a mere 1, signifying a gentle twilight. As night approaches, the UV Index settles at 0 by 19:00, closing a day of fluctuating sun strength. Stay mindful of the UV levels to protect your skin throughout the day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 6 | high | 25 min |
| 09:00 | 9 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | 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 |
As the seasons change, so too does the UV Index, significantly affecting sun safety for both visitors and residents. January starts with a moderate UV Index of 4, but by February, it rises to 6, marking the beginning of high-risk months. The danger peaks in March and April, with UV indices of 10 and 11, categorized as very high and extreme, respectively, resulting in a burn time of just 15 minutes and 10 minutes. Throughout May and July, the UV Index reaches 12 and 13, making these the most hazardous months for sun exposure. As summer transitions to fall, September's index drops to 10, while October sees a decline to 7, indicating a return to higher safety levels. November and December stabilize the UV Index at 5 and 4, respectively, where moderate exposure returns. It's crucial for everyone to remain vigilant during the high-risk months of February through August, utilizing proper sun protection measures such as sunscreen, hats, and protective clothing to minimize the risk of sunburn.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mazar-e Sharif UVI | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 10 | 9 | 7 | 4 | 3 |
| Jalalabad UVI | 4 | 5 | 9 | 10 | 12 | 11 | 12 | 11 | 10 | 7 | 5 | 3 |
| Khost | 4 | 6 | 10 | 11 | 12 | 11 | 13 | 11 | 10 | 7 | 5 | 4 |
| Herat UVI | 5 | 6 | 10 | 11 | 13 | 12 | 12 | 11 | 10 | 8 | 5 | 4 |
| Kandahar UVI | 5 | 7 | 10 | 11 | 13 | 13 | 13 | 12 | 11 | 9 | 6 | 5 |
| Kabul UVI | 6 | 7 | 10 | 12 | 13 | 13 | 13 | 12 | 11 | 8 | 6 | 4 |