Last updated: July 2, 2025
In Tha Sala, Thailand, understanding the UV Index is crucial for protecting your skin from harmful sun exposure. The UV Index measures the strength of ultraviolet radiation, and knowing these levels helps you prevent sunburn and maintain overall skin health. With the region's tropical climate, residents and visitors alike face significant UV exposure, especially during peak hours when the index can soar to a critical 13. Being aware of this information empowers you to take effective precautions, ensuring safe and enjoyable outdoor experiences under the Thai sun.
The UV Index peaks dramatically throughout the day, starting from a mild 1 at 07:00 and rapidly escalating to a max of 13 between 12:00 and 13:00. As the sun climbs higher, the intensity of UV radiation intensifies, reaching a pivotal 12 at 11:00—a clear signal to seek shade if you're outdoors! The afternoon sees a gradual decline, slipping back to 7 by 15:00 and tapering down to a gentle 1 by 18:00. As the day winds down, the UV threat diminishes, hitting a low of 0 by 19:00. Be sure to protect your skin during the peak hours, especially between 10:00 and 14:00!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 5 | moderate | 30 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 | 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 |
Throughout the year, the UV Index remains consistently high, reaching extreme levels from January to November, with values peaking at 15 in March and April. The risk of skin damage is significant, as the burn time is consistently limited to just 10 minutes. The months of February, March, April, May, August, September, and October are particularly high-risk, maintaining UV Index scores of 14 or higher. Residents and visitors are strongly advised to take precautions during these months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade whenever possible. Staying vigilant about UV exposure is essential to protect skin health year-round.
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 |
Tha Sala | 12 | 14 | 15 | 15 | 14 | 13 | 13 | 14 | 14 | 14 | 12 | 11 |