Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Watthana Nakhon, Thailand, where the tropical climate brings intense sun exposure and elevated UV levels. Being aware of UV levels not only helps in preventing sunburn but also plays a significant role in long-term skin health. In Watthana Nakhon, peak UV Index values can reach a staggering 14 around noon, highlighting the importance of taking protective measures during the day. With such high UV exposure risks, staying informed can safeguard your skin while enjoying the beautiful Thai outdoors.
The UV Index today offers a clear picture of solar intensity as the day unfolds. Starting with a calm 1 at 7:00 AM, the sun's rays begin to strengthen, reaching 3 by 8:00 AM. The peak intensity hits at 12:00 PM, soaring to an impressive 14, indicating a strong need for sun protection. As the afternoon progresses, it gradually decreases, dropping to 4 by 4:00 PM and winding down to 1 by 6:00 PM. By 7:00 PM, the UV Index retreats to 0, showcasing the significant daily variation in UV exposure. It's essential to stay alert during those peak hours, especially between 10:00 AM and 1:00 PM, when UV radiation poses the greatest risk!
| 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 | 10 | 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 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index fluctuates throughout the year, demonstrating particularly high values from February to November, with March to September experiencing the peak levels of 14, categorized as extreme. The high-risk months for UV exposure are from February to October, when the burn time is notably short at just 10 minutes. As a result, it is crucial for both visitors and residents to take precautions during this period. Sunscreen, protective clothing, and hats are essential, and individuals should seek shade during peak sun hours. For the months of January and December, while the UV Index drops to 10, the exposure is still categorized as very high, warranting attention to sun safety. Staying informed and proactive about UV exposure can help mitigate skin damage and enhance outdoor experiences.
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 |
| Watthana Nakhon | 10 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 13 | 11 | 10 |