Last updated: May 3, 2025
In Khiri Mat, Thailand, understanding the UV Index is essential for ensuring your skin health and preventing sunburn. With the tropical Aw climate, residents and visitors alike face high UV exposure throughout the day, especially during peak hours when the index can soar to levels of 12 and above. By monitoring UV levels, you can take proactive measures to protect yourself from harmful rays, ensuring that your outdoor activities remain enjoyable and safe. Being aware of the UV Index not only helps mitigate immediate risks like sunburn but also supports long-term skin health. Stay informed and keep your sun protection strategies ready!
As the sun rises, the UV Index begins its ascent, starting from a gentle 1 at 07:00. By 08:00, it climbs to 3, signaling the need for increased sun protection. The intensity peaks dramatically at 12:00 with a scorching 14, marking the most hazardous sun exposure period of the day. Just before noon, at 11:00, the UV Index hits 12, a warning to stay in the shade. By 14:00, it begins its descent, dropping to 11 and continuing down to a mild 4 by 16:00. The evening brings relief as the index falls to 0 by 19:00, allowing for a safe outdoor experience as the sun sets. Stay aware and protect your skin during those peak hours to enjoy your day safely!
| 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 | 12 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, seasonal UV changes reveal a clear pattern, with the highest UV Index values occurring from February to September, peaking in May through August at a striking UV Index of 14. These months fall into the extreme exposure category, with a burn time of just 10 minutes. Conversely, high-risk months include February, March, April, May, June, July, August, September, and October, all categorized as extreme exposure with minimal burn times. Residents and visitors are strongly advised to take precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours to minimize the risk of UV-related harm. In contrast, November and December see a notable decrease in UV levels, categorizing them as very high, with slightly longer burn times of 15 minutes—still warranting cautious sun exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mueang Nonthaburi UVI | 10 | 12 | 14 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 9 | 8 |
| Samut Prakan UVI | 10 | 12 | 14 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 9 | 8 |
| Bangkok UVI | 10 | 12 | 14 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 9 | 8 |
| Khiri Mat | 10 | 12 | 13 | 13 | 14 | 13 | 14 | 14 | 14 | 12 | 10 | 8 |
| Udon Thani UVI | 9 | 11 | 13 | 14 | 14 | 13 | 14 | 14 | 14 | 12 | 10 | 9 |
| Chon Buri UVI | 10 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 10 | 9 |