Last updated: May 3, 2025
In Chang Klang, Thailand, being aware of the UV Index is essential for safeguarding your skin against harmful ultraviolet rays. With the region's tropical climate, UV levels can quickly soar, significantly increasing the risk of sunburn and long-term skin damage. From mid-morning to early afternoon, when UV Index values peak at 14, understanding these fluctuations helps you take proactive steps to protect your skin. By remaining informed, you're not just enjoying the sun safely; you're prioritizing your overall skin health and well-being.
The UV Index varies dramatically throughout the day, starting low at 7:00 AM with a reading of 1, making it a safe time for early risers. As the sun climbs, the index steadily increases, peaking at an intense 14 by noon, indicating a critical level of UV exposure. The intensity begins to wane in the afternoon, drifting down to 7 by 3:00 PM and dropping further to 1 by 5:00 PM. By 7:00 PM, the UV Index falls to 0, signaling a return to safer outdoor conditions as the sun sets. If you're planning to spend time outside, be sure to take precautions during the peak hours of 11:00 AM to 1:00 PM when UV radiation is at its strongest.
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 | 13 | 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, 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 |
Chang Klang | 12 | 14 | 15 | 15 | 14 | 13 | 13 | 14 | 14 | 14 | 12 | 11 |