Last updated: May 3, 2025
Being aware of the UV Index is crucial for residents and visitors in Tham Phannara, Thailand, where the tropical climate often exposes individuals to intense sunlight. Understanding the varying levels of UV radiation throughout the day can significantly aid in preventing sunburn and preserving skin health. With powerful UV indices peaking at 14 around midday, it’s vital to take protective measures during high-risk hours, particularly between 10:00 AM and 2:00 PM. As you explore the stunning landscapes of Tham Phannara, staying informed about UV exposure will help ensure your outdoor activities are both enjoyable and safe.
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 |
Tham Phannara | 12 | 14 | 15 | 15 | 14 | 13 | 13 | 14 | 14 | 14 | 12 | 11 |