Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Lop Buri, Thailand, where the sun's rays can be particularly intense. With the region's climate categorized as Aw, it experiences high UV levels, especially between 10 AM and 2 PM, peaking at a significant 13. Being aware of these UV levels not only aids in preventing sunburn but also plays a vital role in maintaining long-term skin health. By staying informed about the daily UV Index, you can take the necessary precautions to enjoy Lop Buri's beautiful skies while safeguarding your skin from potential harm.
As the sun climbs higher, the UV Index reaches its peak intensity around 12:00 PM, soaring to a striking 13—a clear signal for outdoor enthusiasts to take precautions. The morning hours start gently, with a low of 1 at 07:00 AM, gradually escalating to 6 by 09:00 AM and hitting 9 at 10:00 AM. By 11:00 AM, the sun begins to assert itself with a 12. However, as the afternoon progresses, the UV intensity starts to wane, dropping to 10 at 2:00 PM, and tapering off to a mere 2 by 5:00 PM. As daylight diminishes, the UV Index dwindles to 0 by 7:00 PM, inviting a much-needed respite from the sun’s relentless rays. Always be vigilant and protect your skin during those peak hours!
| 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 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 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 experiences significant seasonal changes, peaking during the warmer months. January begins with a UV Index of 9, categorized as very high, with a burn time of just 15 minutes. As we move into February and March, the Index escalates to 12 and 13, tipping into the extreme category, where careful sun protection is essential. From April to August, the UV Index consistently remains at 13 to 14, emphasizing the need for aggressive sun safety measures with a burn time of only 10 minutes. The Index begins to decline in September and October but stays in the extreme range of 12 to 13. High-risk months for UV exposure are predominantly between February and August, urging both residents and visitors to prioritize sun protection—such as wearing sunscreen, hats, and protective clothing—during these critical times. The lower UV levels in November and December still warrant attention, as they feature a 10 and 9 UV Index, respectively, reminding us that skin protection is important year-round.
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 |
| Lop Buri | 9 | 12 | 13 | 14 | 13 | 13 | 13 | 14 | 13 | 12 | 10 | 9 |
| 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 |