Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Chum Phae, Thailand, where the tropical climate can lead to significant sun exposure. Knowing the daily UV levels is essential for sunburn prevention and maintaining long-term skin health. With UV Index readings peaking at a staggering 14 around midday, sun safety precautions become vital to avoid harmful effects. As Chum Phae experiences high UV risks, especially during the sunniest hours, staying informed empowers everyone to enjoy the outdoors safely while protecting their skin.
The UV Index paints a vivid picture of the sun's intensity as the day progresses. Morning kicks off with a low index of 1 at 07:00, a gentle start that quickly picks up momentum. By 09:00, it reaches 6, hinting that it’s time to consider some sun protection. The peak occurs at 12:00, when the index skyrockets to 14, indicating exceptionally high UV levels—perfect for keeping those sunscreen bottles handy! As the afternoon rolls in, the index begins to taper off, dropping to 11 at 14:00 and descending steadily thereafter. By evening, the UV Index dwindles to 0 at 19:00, inviting everyone to unwind as the sun retreats. This data serves as a reminder to stay vigilant under the midday sun and enjoy the outdoors while being sun-smart!
| 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 | 14 | 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 |
Throughout the year, UV levels display notable seasonal changes, reaching their peak from March to October, where the UV Index consistently registers between 13 and 14, categorized as extreme. The highest risk months are February through September, with a maximum UV Index of 14 in March, April, July, August, and September, indicating a burn time of just 10 minutes for unprotected skin. During January, November, and December, while still categorized as very high, the UV Index decreases to 9 and 10, allowing for a slightly longer burn time of 15 minutes. Visitors and residents are strongly advised to take precautions during the peak months by wearing protective clothing, applying broad-spectrum sunscreen frequently, and seeking shade when the sun is strongest, typically between 10 a.m. and 4 p.m. to minimize the risk of skin damage.
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 |
| Chum Phae | 9 | 12 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 13 | 10 | 9 |
| Chon Buri UVI | 10 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 10 | 9 |