Last updated: May 3, 2025
In Tha Chang, Thailand, staying aware of the UV Index is crucial for maintaining healthy skin and preventing sunburn, especially under the tropical sun's intense rays. Understanding UV levels can help residents and visitors alike take effective precautions against skin damage, ensuring that outdoor activities remain enjoyable and safe. The region's tropical climate, characterized by high temperatures and significant UV exposure throughout the day, highlights the importance of monitoring these levels. With UV Index peaking at a striking 14 between noon and early afternoon, being informed about sun safety can make all the difference in enjoying the beautiful Thai outdoors without compromising skin health.
The UV Index offers a clear glimpse into the sun's intensity throughout the day, peaking dramatically around noon. At 07:00, the index starts at a gentle 1, but by 08:00, it rises to 3, indicating that the sun's rays are beginning to strengthen. As the morning progresses, the UV Index climbs steadily, hitting 6 by 09:00 and then surging to a striking 9 at 10:00. The midday sun reaches its zenith at 12:00 and 13:00, with an alarming 14, signaling a critical time for outdoor activities without proper protection. As the afternoon wanes, the index tapers off, dropping to 11 at 14:00, and continuing to decline to 4 by 16:00. By 17:00, it plummets to 1, and as evening approaches, it gently falls to 0 by 19:00. This data underscores the importance of sun safety 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 | 13 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 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 |
Throughout the year, the UV Index remains consistently high, with extreme exposure levels recorded every month. The months of February to April show the highest UV readings, peaking at 15, indicating significant risks for skin damage with an extremely short burn time of just 10 minutes. Additionally, January and December display slightly lower, yet still extreme levels at 11. Visitors and residents are strongly advised to take precautions during all months, particularly from February to April, when UV levels are at their most intense. Sunscreen application, wearing protective clothing, and seeking shade during peak sun hours are essential to safeguard against harmful 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 |
| Chon Buri UVI | 10 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 10 | 9 |
| Tha Chang | 11 | 13 | 15 | 15 | 14 | 13 | 13 | 14 | 14 | 14 | 12 | 11 |