Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Wiang Haeng, Thailand, where the tropical climate exposes individuals to varying levels of ultraviolet radiation throughout the day. Awareness of UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. With peak UV Index readings soaring to 15 between noon and 1 PM, the risks of overexposure are significant, especially in this sun-drenched region. By being informed about UV levels, you can take proactive measures to protect yourself and enjoy the beauty of Wiang Haeng safely.
As the day unfolds, the UV Index soars, first reaching 3 by 8:00 AM, but it's by 10:00 AM that it really peaks at 9, indicating a strong need for sun protection. The highest intensity occurs at 12:00 PM with a notable 15, prompting caution for those enjoying outdoor activities. From 1:00 PM to 3:00 PM, the index remains high, fluctuating between 14 and 12, before gradually tapering off through the afternoon into the evening. By 7:00 PM, the index drops sharply to 1, and as dusk settles, it hits 0 at 8:00 PM, highlighting a dramatic decline in UV exposure as the sun sets. Remember, during the hours of peak intensity, it's vital to shield your skin to enjoy the sun safely!
| 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 | 15 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, with highest values typically occurring from March to October, where levels reach an extreme category of 13-15. March sees the UV Index peak at 13, continuing into May and July, where it rises to 14 and 15, respectively. Specifically, July is noted as the highest-risk month for UV exposure, due to its 15 rating and a brisk burn time of only 10 minutes. Following summer, October retains elevated levels before the UV Index drops to 10 in November and 9 in December, categorizing them as very high. Visitors and residents are strongly advised to take precautionary measures during high-risk months by applying broad-spectrum sunscreen, wearing protective clothing, and limiting sun exposure, particularly during peak hours.
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 |
| Wiang Haeng | 9 | 10 | 13 | 13 | 14 | 14 | 15 | 14 | 14 | 13 | 10 | 9 |
| Chon Buri UVI | 10 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 10 | 9 |