Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Si Mahosot, Thailand, where the tropical climate brings strong sunlight throughout the year. With UV levels peaking at a staggering 13 during midday, awareness of these values is essential for effective sunburn prevention and long-term skin health. By monitoring the UV Index, you can protect yourself against harmful radiation that can lead to skin damage. Whether you're enjoying outdoor activities or daily commutes, being informed about Si Mahosot's UV exposure risks can help you make safe choices and enjoy the beautiful Thai sun responsibly.
As the sun rises, the UV Index shows a gradual increase, peaking at 13 by noon. Starting from a modest level of 1 at 07:00, the intensity escalates rapidly, hitting a notable 9 by 10:00. By 11:00, it spikes to a powerful 12, suggesting a high risk of harm from unprotected sun exposure. The UV levels remain critical until 13:00, after which they begin to decline. By 15:00, the index drops to 6, indicating a return to safer sun conditions, but still requiring caution. As the afternoon progresses, the UV Index continues to fall, dropping to 1 by 17:00 and eventually reaching 0 at 19:00, signaling the end of the day's sun challenge. Remember to stay protected during the peak hours, especially between 11:00 and 13:00!
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 | 12 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 6 | 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, UV levels exhibit significant seasonal fluctuations, with the highest risk months occurring from February to August, during which the UV Index often reaches extreme levels of 12 to 14. In these months, the burn time is notably short, at just 10 minutes, necessitating diligent sun protection measures. Conversely, January and December have slightly lower UV indices (10 and 9, respectively) and, while categorized as very high, they still require caution with a burn time of 15 minutes. Visitors and residents are strongly advised to wear sunscreen, protective clothing, and sunglasses during high UV periods, particularly between late winter and summer, to minimize skin damage and health risks.
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 Mahosot | 10 | 12 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 11 | 9 |