Last updated: May 3, 2025
In Si Somdet, Thailand, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps residents and visitors alike to effectively prevent sunburn and reduce the long-term risks of skin damage. With a tropical climate characterized by intense sunlight and high UV exposure, especially between 10 AM and 2 PM when the UV Index can soar to a staggering 15, it's essential to stay informed. By monitoring UV levels, you can enjoy the beautiful outdoors while safeguarding your skin from harm.
As the sun rises on a new day, the UV Index begins at a modest 1 at 7:00 AM, gradually climbing to reach its peak of 15 by 12:00 PM. The hours between 9:00 AM and 1:00 PM showcase the sun's intensity, highlighted by a significant spike to 11 at 10:00 AM and 14 at 11:00 AM. However, by the afternoon, the radiation starts to wane, dropping to 6 at 3:00 PM, and then tapering off significantly as evening approaches. By 6:00 PM, the UV Index returns to a safe level of 1, and by 7:00 PM, it settles at 0, signaling the end of peak solar radiation for the day. Remember, during those peak hours, it’s essential to protect your skin!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 11 | extreme | 10 min |
11:00 | 14 | extreme | 10 min |
12:00 | 15 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 6 | high | 25 min |
16:00 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
The seasonal UV changes indicate a significant increase in UV Index values from January through July, peaking at 15 in May and July, classifying these months in the extreme exposure category with a rapid burn time of only 10 minutes. Following this peak, UV levels gradually decrease, yet September and October maintain an extreme risk with values of 13 and 12, respectively. As the year closes, November and December drop to a very high level at 10 and 9, allowing for a burn time of 15 minutes. Visitors and residents should exercise caution during high-risk months from February to October, particularly in the summer, by wearing protective clothing, using sunscreen, and seeking shade to reduce the risk of UV-related injuries.
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 |
Si Somdet | 10 | 12 | 14 | 14 | 15 | 13 | 15 | 14 | 13 | 12 | 10 | 9 |