Last updated: July 2, 2025
In Phayuha Khiri, Thailand, awareness of the UV Index is crucial for safeguarding your skin and overall health. With the region's tropical climate, understanding daily UV levels can help you effectively prevent sunburn and minimize long-term skin damage. During peak hours, UV Index readings soar, reaching a maximum of 14 between noon and 1 PM, which signifies an extreme risk of harm from unprotected sun exposure. By staying informed about UV conditions, residents and visitors alike can enjoy the beautiful sunshine while prioritizing their well-being.
As the sun rises, the UV Index begins at a gentle 1 at 7:00 AM, perfect for a morning stroll. By 8:00 AM, it ramps up to 3, a signal to start thinking about sun protection. The real intensity kicks in at 9:00 AM, with a sharp rise to 6, marking a transition to more serious UV exposure. The peak of the day comes at 12:00 PM and 1:00 PM, where the UV Index soars to a striking 14—what a powerful reminder to seek shade and apply sunscreen! As the afternoon progresses, the index gradually declines; by 4:00 PM, it drops to 4, and by 6:00 PM, it returns to a mild 1. Finally, as the day winds down, the UV index dips to 0 by 7:00 PM, signaling a safe end to outdoor activities. Stay aware and enjoy the sunshine responsibly!
| 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 | 13 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 8 | very high | 15 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 |
The UV Index varies significantly throughout the year, peaking during the spring and summer months. February through September are identified as high-risk months, where the UV Index reaches levels categorized as extreme (12-14), with burn times as short as 10 minutes. January, November, and December show a slight decrease, with UV levels still classified as very high (9-10) and burn times extending to 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by seeking shade, wearing protective clothing, and using broad-spectrum sunscreen to minimize the risk of UV exposure and potential sunburn.
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 |
| Phayuha Khiri | 9 | 12 | 13 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 10 | 9 |
| Chon Buri UVI | 10 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 10 | 9 |