Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Raas, Indonesia, where the sun’s rays can pose significant health risks. With a tropical climate marked by high humidity and intense sunlight, awareness of UV levels is essential for effective sunburn prevention and maintaining healthy skin. During peak hours, particularly from 10 AM to 1 PM, the UV Index can soar as high as 12, indicating extreme potential for harm. By staying informed about local UV trends, you can enjoy the beautiful outdoors while protecting yourself from the dangers of excessive sun exposure.
As the day begins, the UV Index starts at a mild 2 at 7:00 AM, but it quickly escalates as the sun rises. By 10:00 AM, it peaks at a striking 10, indicating a high risk of harm from unprotected sun exposure. The intensity continues to dominate until 12:00 PM, when it slightly dips to 11 but remains a major concern. As afternoon approaches, the UV Index gradually descends from 9 at 1:00 PM to 6 by 2:00 PM, before more noticeable declines occur, settling at 3 by 3:00 PM. The evening brings a steady reduction, with readings plummeting to 1 by 4:00 PM and 5:00 PM, and finally dropping to zero after 6:00 PM. It's a vivid reminder that during peak hours, taking precautions against sun exposure is essential for skin health!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | 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 | 11 | extreme | 10 min |
13:00 | 9 | very high | 15 min |
14:00 | 6 | high | 25 min |
15:00 | 3 | moderate | 30 min |
16:00 | 1 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index in this region demonstrates extreme levels throughout the year, with consistently high readings from January to October. The highest levels occur from February to May, peaking at 16, while December sees a slight decrease to 13. Visitors and residents should be particularly cautious during the high-risk months of February through April, when the UV Index reaches its maximum. Regardless of the month, a burn time of only 10 minutes emphasizes the need for proper sun protection year-round. It is advisable for everyone to wear sunscreen, seek shade, and wear protective clothing to prevent harmful effects from UV exposure.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Surabaya UVI | 13 | 15 | 14 | 12 | 12 | 10 | 11 | 12 | 14 | 13 | 13 | 13 |
Bekasi UVI | 14 | 16 | 16 | 14 | 11 | 10 | 10 | 11 | 13 | 15 | 14 | 13 |
Jakarta UVI | 14 | 16 | 16 | 14 | 11 | 10 | 10 | 11 | 13 | 15 | 14 | 13 |
Medan UVI | 13 | 15 | 15 | 15 | 14 | 12 | 12 | 13 | 14 | 14 | 13 | 12 |
Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |
Raas | 14 | 16 | 16 | 15 | 13 | 11 | 12 | 13 | 15 | 15 | 14 | 13 |