Last updated: July 2, 2025
Understanding the UV Index in Pai, Thailand is crucial for anyone looking to enjoy the area's stunning landscapes while protecting their skin. With UV levels varying significantly throughout the day, awareness helps in preventing sunburn and maintaining long-term skin health. Pai’s climate, characterized by its warm days and high elevation, presents unique risks for sun exposure, particularly during peak hours when the UV Index soars to a blistering 15 around noon. By keeping an eye on UV levels, you can enjoy the sun safely and make the most of your time in this beautiful destination.
As the sun rises, the UV Index begins to climb, reaching a modest 1 at 07:00. By 08:00, it triples to 3, but the real intensity starts around 09:00 when it spikes to 6. The peak arrives at 12:00, boasting a scorching 15, making it crucial for sun protection. The intensity gradually fades after 13:00 with 14, then 12 at 14:00. By late afternoon, at 15:00, it dips to 9, and the day winds down with readings of 5 at 16:00, 2 at 17:00, and finally settling back to 1 by 18:00. The day closes with no UV risk at 19:00, a gentle reminder of the sun's daily journey and the importance of sun safety during peak hours.
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 | 15 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 12 | extreme | 10 min |
15:00 | 9 | very high | 15 min |
16:00 | 5 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking during the summer months. January and December start the year with a very high UV Index of 9, allowing for a burn time of 15 minutes. As we move into February, the UV Index rises to 10, maintaining very high levels. March and April see an escalation to 13, classified as extreme, with a reduced burn time of just 10 minutes. The sun's intensity reaches its zenith in May, July, and August, where the UV Index consistently hits 15, also categorized as extreme. June and September hover at 14, while October declines slightly to 13. November returns to a very high 10. April through September are particularly high-risk months, making it crucial for visitors and residents to take protective measures. It’s advisable to wear sunscreen, hats, and protective clothing and seek shade during peak hours to minimize UV 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 |
Udon Thani UVI | 9 | 11 | 13 | 14 | 14 | 13 | 14 | 14 | 14 | 12 | 10 | 9 |
Pai | 9 | 10 | 13 | 13 | 15 | 14 | 15 | 15 | 14 | 13 | 10 | 9 |
Chon Buri UVI | 10 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 10 | 9 |