Last updated: July 2, 2025
Understanding the UV Index is essential for residents and visitors in Kemereh, Indonesia, where the tropical climate can bring significant sun exposure risks. With UV levels peaking during midday hours—reaching as high as 12—awareness of these fluctuations is crucial for preventing sunburn and protecting skin health. By staying informed about daily UV levels, you can take effective measures against harmful radiation and ensure a safer outdoor experience in this vibrant region known for its sunny weather and beautiful landscapes.
The UV Index varies dramatically throughout the day, peaking impressively at 12 around 11:00 AM, indicating a significant risk of harm from unprotected sun exposure. The morning starts off gently at a low 1 at 7:00 AM, climbing steadily to 4 by 8:00 AM and reaching 7 by 9:00 AM. As the sun climbs higher, the index surges to 10 at 10:00 AM before peaking, making midday the most hazardous time for sun exposure. Relief comes after noon, as the UV Index drops to 9 at 1:00 PM, then further declines to 3 at 3:00 PM. By late afternoon, it settles back to 1 by 4:00 PM and finally reaches 0 by 6:00 PM, providing a safe window for evening outdoor activities. Stay protected during the peak hours!
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 | 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 remains consistently high throughout the year, with extreme exposure levels primarily observed from January to March and peaking in February and September. Visitors and residents should be particularly vigilant in these high-risk months, where the UV Index reaches up to 15, resulting in a rapid burn time of only 10 minutes. Even during the hotter months, such as July and August, the UV Index still remains significantly elevated. It is crucial for everyone to take necessary precautions, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours, to minimize the risk of harmful UV exposure year-round.
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 |
Kemereh | 14 | 15 | 15 | 14 | 13 | 11 | 12 | 13 | 15 | 15 | 15 | 14 |