Last updated: August 1, 2025
Understanding the UV Index is essential for residents and visitors in Tombatu, Indonesia, where the tropical climate contributes to elevated exposure to ultraviolet radiation. With maximum UV levels peaking at 13 during midday, awareness of these fluctuations can be the key to preventing painful sunburn and maintaining long-term skin health. By knowing when the UV exposure is at its highest—typically between 10:00 AM and 2:00 PM—you can take protective measures to enjoy outdoor activities safely in this vibrant region while safeguarding your skin against potential damage.
The UV Index data reveals a dramatic transformation throughout the day. Early in the morning, at 07:00, the UV Index starts at a minimal 1, but by 09:00, it skyrockets to 7, indicating a rise in sun intensity. The peak occurs between 11:00 and 12:00, where it reaches its zenith at an impressive 13, showcasing the potential for skin damage without protection. As the afternoon progresses, the index gradually declines, with values dropping to 4 by 15:00 and further dwindling to a 0 by 19:00. This pattern highlights the importance of sun safety during the midday hours when UV radiation is most potent, urging us to embrace the shade and apply sunscreen accordingly.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 8 | very high | 15 min |
10:00 | 11 | extreme | 10 min |
11:00 | 14 | extreme | 10 min |
12:00 | 14 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 2 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV index data reveals extremely high UV levels throughout most of the year, particularly from January to May, where values remain consistently high at 15-16, indicating a 10-minute burn time. March through May also sees persistently high readings, suggesting these months are particularly at risk. However, even in June to November, the UV index stays robustly high, tapering only slightly. With October and November still showing UV indices of 15 and 14 respectively, residents and visitors should take precautions year-round. It is crucial to use adequate sun protection, such as wearing sunscreen, sunglasses, and protective clothing, especially during peak sun hours. Always remain vigilant about sun safety, as the threat of rapid skin damage is significant at these levels.
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 |
Tombatu | 15 | 16 | 16 | 16 | 15 | 12 | 13 | 14 | 15 | 15 | 14 | 13 |