Last updated: July 2, 2025
In Su-ngai Padi, Thailand, understanding the UV Index is crucial for maintaining skin health and preventing sunburn, especially in the region's warm tropical climate. The UV Index reflects the intensity of ultraviolet radiation, which can lead to both immediate and long-term skin damage. With peak values reaching as high as 12 in the midday sun, residents and visitors alike should be especially cautious during the hours around noon to afternoon. By keeping an eye on these UV levels, you can take proactive measures to protect yourself from harmful exposure while enjoying the beautiful outdoors.
The UV index throughout the day presents a fascinating story of sunlight intensity. Starting at 7:00 AM, the index is at a low 1, gradually rising to 2 by 9:00 AM. However, the real intensity kicks in around 10:00 AM, peaking at an impressive 12 between 12:00 PM and 2:00 PM—the sun's rays are at their strongest, hitting a maximum of 11 at 12:00 PM and maintaining a high of 12 until 2:00 PM. As the afternoon wanes, the index drops, settling back to 9 at 3:00 PM, then gradually decreasing to 3 by 5:00 PM, and finally returning to a safe 1 by 7:00 PM. These shifts highlight the importance of sun safety during peak hours, especially between noon and two, when UV exposure is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 2 | low | 45 min |
10:00 | 5 | moderate | 30 min |
11:00 | 8 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 12 | extreme | 10 min |
15:00 | 9 | very high | 15 min |
16:00 | 6 | high | 25 min |
17:00 | 3 | moderate | 30 min |
18:00 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels remain consistently high, indicating extreme sun exposure from January to December, with values ranging from 12 to 16. The months of February to March represent the peak period, where the UV Index reaches its highest point of 15 to 16, posing the greatest risk for sunburns with a critical burn time of just 10 minutes. Residents and visitors are advised to take strong precautions during these high-risk months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade whenever possible. This vigilance is crucial, as even in the other months, the UV Index remains elevated, underscoring the need for year-round sun safety awareness.
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 |
Su-ngai Padi | 13 | 15 | 16 | 15 | 14 | 13 | 12 | 13 | 14 | 14 | 12 | 12 |