Last updated: July 2, 2025
Understanding the UV Index in Kaset Wisai, Thailand, is crucial for anyone looking to protect their skin and maintain overall health. With UV levels peaking at 14 around midday, awareness of these readings can help you prevent sunburn and long-term skin damage. As a region classified in the Aw climate zone, Kaset Wisai is characterized by warm, sunny days that contribute to significant UV exposure risks, particularly during the late morning and early afternoon hours. Staying informed about the UV Index empowers residents and visitors alike to enjoy the outdoors safely and enjoyably.
As the sun rises, the UV Index gradually climbs, starting the day at a mild 1 at 7:00 AM. By 8:00 AM, it takes a leap to 3, signaling the onset of more intense rays. The intensity peaks dramatically at 12:00 PM with a blistering 14, making it crucial to seek shade and apply sunscreen. This high UV level persists until 1:00 PM, when it slightly drops to 13 before tapering off in the afternoon. By 3:00 PM, the index descends to 7, showing that while the sun remains strong, it’s losing its bite. As evening approaches, the UV Index dwindles to a comfortable 1 by 5:00 PM and finally drops to 0 by 7:00 PM, marking the end of a sun-soaked day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant fluctuations throughout the year, with the highest levels recorded from February to October, particularly peaking in May (UV Index 15) and maintaining extreme levels from March to October. January starts the year with a UV Index of 10, categorizing it as very high, while November and December also retain a very high exposure but with slightly lower indices of 10 and 9, respectively. High-risk months are predominantly from February to October, where the UV Index remains at extreme levels of 13 to 15, resulting in a burn time of just 10 minutes. Residents and visitors are strongly advised to take protective measures during these months, such as wearing sunscreen, protective clothing, and avoiding sun exposure during peak hours to minimize the risk of UV-related skin damage.
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 |
| 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 |
| Kaset Wisai | 10 | 13 | 14 | 14 | 15 | 13 | 14 | 14 | 14 | 12 | 10 | 9 |