Last updated: May 3, 2025
Understanding the UV Index in Sam Ngam, Thailand is crucial for safeguarding your skin and overall health against the sun’s harmful rays. With the area's tropical climate, the UV exposure is heightened, particularly between 10 AM and 2 PM when indices reach a peak of 13. By being aware of these levels, residents and visitors can take proactive steps to prevent sunburn and long-term skin damage. Staying informed about the UV Index not only enhances your outdoor experience but also promotes healthier skin in a region known for its bright and sunny days.
The UV Index for the day follows a distinct pattern, peaking dramatically around noon. Starting at a modest 1 at 07:00, it climbs to 3 by 08:00, then surges to 6 at 09:00. As the sun reaches its zenith, the UV Index hits 12 at 11:00, culminating in a stifling 13 by 12:00 and again at 13:00. After this high point, it gradually dips to 10 at 14:00, before descending further to 7 at 15:00 and tapering off to 4 by 16:00. As the day winds down, the UV Index falls to 1 by 17:00, and finally drops to a negligible 0 by 19:00, marking the end of peak UV exposure. Remember to stay protected during those midday 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 | 12 | extreme | 10 min |
12:00 | 13 | 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 seasonal variation, peaking in the summer months. January starts with a very high UV Index of 9, but by February it escalates to an extreme level of 11. From March through October, the UV Index remains critically high, reaching a maximum of 14 in July, August, and September, while maintaining an extreme exposure category throughout this period. As the year progresses, October sees a slight decline to 13, before dropping again in November to 10 and December to 8, both classified as very high. Visitors and residents are strongly advised to take precautions, particularly during the high-risk months from February through October, where burn times are as short as 10 minutes. To protect your skin, limit sun exposure, wear protective clothing, and apply sunscreen regularly.
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 |
Sam Ngam | 9 | 11 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 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 |