Last updated: July 2, 2025
Understanding the UV Index in San Pa Tong, Thailand is crucial for keeping your skin healthy and preventing sunburn. As the sun rises and temperatures soar in this tropical climate, the risk of harmful UV radiation increases dramatically throughout the day, peaking at a staggering UV Index of 14 from noon until early afternoon. Being aware of these levels can help residents and visitors alike take the necessary precautions, like seeking shade or applying sunscreen, to protect their skin from the sun's potentially damaging effects. With typical exposure risks high in this region, staying informed about the UV Index is not just smart—it's essential for your health and well-being.
As the sun rises, the UV Index begins its ascent, peaking at 14 by noon. Starting from a modest 1 at 7:00 AM, it gradually escalates to 6 by 9:00 AM, reaching a significant 12 at 11:00 AM. The intensity hits its maximum at 12:00 PM and 1:00 PM, where it sustains a striking 14, urging sun protection. After this zenith, a steady decline ensues; from 12 at 2:00 PM to 8 at 3:00 PM, before falling to a gentle 2 by 5:00 PM. By sunset, the UV Index spirals down to 0, marking the day’s end. Stay safe and protect yourself during those 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 | 12 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 8 | 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, UV Index levels exhibit significant seasonal variation, with the highest values observed from March to October. During this period, the UV Index peaks at 14, categorized as extreme from May to September, where the recommended maximum sun exposure is only 10 minutes before burns can occur. January and February start with a very high rating of 9 and 10, respectively, allowing for a slightly longer burn time of 15 minutes. Notably, the months of March, April, and October transition back to extreme but still maintain 10 minutes of safe exposure. For residents and visitors, it is crucial to take protective measures, especially during the high-risk months from March to October. Recommendations include wearing broad-spectrum sunscreen, protective clothing, and seeking shade during peak sun hours to minimize the risk of 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 |
| San Pa Tong | 9 | 10 | 13 | 13 | 14 | 14 | 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 |