Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Sandan, Cambodia, where the sun’s rays can be particularly intense due to its tropical Aw climate. Awareness of UV levels helps in preventing sunburn and promoting long-term skin health, which is essential for enjoying the outdoors safely. During peak hours, especially between 10 AM and 2 PM, the UV Index can reach alarming levels, peaking at 13. Familiarizing yourself with these daily fluctuations not only safeguards your skin but also enhances your enjoyment of Sandan's beautiful surroundings.
The UV Index throughout the day follows a dynamic pattern, peaking around midday. Starting at a gentle 1 at 07:00, it escalates rapidly, reaching 4 by 08:00. The intensity continues to climb, hitting 7 at 09:00 before soaring to a staggering 10 at 10:00. The highest level is observed at 12, where it maintains a powerful 13 from 12:00 to 13:00, prompting a strong call for sun protection. As the afternoon progresses, the index gradually declines, dropping back to 9 at 14:00 and then to 6 by 15:00. By late afternoon, the UV Index dips further to 3 at 16:00, before settling back down to 1 by 17:00 and waning to 0 after 19:00. This data underscores the importance of sun safety during the peak hours, particularly between 11:00 and 13:00.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 12 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 6 | high | 25 min |
16:00 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index shows significant seasonal changes, with the highest levels occurring from February to May, where the Index reaches extreme values between 13 and 15. Notably, March and May are particularly high-risk months, featuring a UV Index of 15, resulting in a burn time of only 10 minutes. As exposure remains extremely dangerous from February through October, it is crucial for visitors and residents to take proactive measures during these months. This includes wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun hours. In contrast, January and December present lower but still significant UV risks, categorized as very high with a burn time of 15 minutes. Stay vigilant and prioritize skin protection throughout the year to minimize UV-related health risks.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Battambang UVI | 10 | 13 | 15 | 14 | 14 | 13 | 14 | 14 | 14 | 13 | 11 | 10 |
Siem Reap UVI | 10 | 13 | 15 | 14 | 14 | 13 | 14 | 14 | 14 | 12 | 11 | 10 |
Sandan | 10 | 13 | 15 | 14 | 15 | 13 | 14 | 14 | 14 | 13 | 11 | 10 |
Phnom Penh UVI | 10 | 14 | 15 | 15 | 14 | 13 | 14 | 14 | 14 | 13 | 11 | 10 |
Takeo UVI | 10 | 14 | 15 | 15 | 15 | 13 | 14 | 14 | 14 | 13 | 11 | 10 |
Sihanoukville UVI | 11 | 14 | 15 | 15 | 14 | 13 | 14 | 14 | 14 | 13 | 11 | 11 |