Last updated: May 3, 2025
In Si Nakhon, Thailand, awareness of the UV Index is crucial for safeguarding your skin and overall health. Understanding the intensity of ultraviolet radiation exposure can help prevent sunburn and long-term skin damage, particularly in a tropical climate where UV levels can escalate rapidly throughout the day. With maximum UV Index readings soaring to 14 around noon, it’s essential for residents and visitors to stay informed about daily UV levels to enjoy the sun safely. By taking simple precautions, you can protect yourself from the harmful effects while enjoying the vibrant outdoor lifestyle that Si Nakhon has to offer.
The UV Index journey throughout the day reveals a dynamic and intense sunlight experience. Starting with a gentle maximum of 1 at 7:00 AM, the index climbs steadily, reaching 3 by 8:00 AM. It then takes a commanding leap to 6 at 9:00 AM, before peaking at a striking 14 around 12:00 PM—the moment when sun safety is most crucial. As the afternoon progresses, the UV intensity begins to taper off, dipping to 10 at 2:00 PM, and down to 4 by 4:00 PM. Finally, the day wraps up with a return to more manageable levels, settling at 0 by 7:00 PM. This data highlights the importance of protective measures during peak hours when the sun’s rays are most potent.
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 | 14 | 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 fluctuations throughout the year, with the most critical months for sun exposure being February through October, where the levels reach extreme values, peaking at 14 in May, July, August, and September. During this period, the burn time is notably short, at just 10 minutes, necessitating vigilant sun protection measures. January and November have a UV Index of 9 and 10 respectively, categorized as very high, allowing for a slightly longer burn time of 15 minutes. December and October see a decrease in UV levels but still fall within a very high range, reminding residents and visitors to remain cautious. It is advisable for everyone to prioritize the use of sunscreen, wear protective clothing, and seek shade, particularly during the high-risk months of late winter through early fall.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Si Nakhon | 9 | 11 | 12 | 13 | 14 | 13 | 14 | 14 | 14 | 12 | 10 | 8 |
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 |