Last updated: June 2, 2025
Understanding the UV Index in Sumber, Indonesia is crucial for protecting your skin and maintaining overall health. Given the region's tropical climate, the potential for high UV exposure is significant, especially around midday when levels peak at 10, indicating a very high risk of harm from unprotected sun exposure. By staying informed about UV levels, residents and visitors can take proactive measures to prevent sunburn, reduce the risk of skin cancer, and enjoy outdoor activities safely. With varied UV readings throughout the day, being aware of these fluctuations ensures that you can enjoy the beautiful sun-soaked days in Sumber while prioritizing your skin’s health.
As the sun rises, the UV Index begins to climb, starting at a gentle 1 at 07:00. By 08:00, it escalates to a moderate 3, but the real intensity hits by 10:00, peaking at a striking 10 from 11:00 to 12:00—a clear signal for sun safety awareness. As the afternoon progresses, the index gradually declines, dipping to 8 at 13:00 and then swiftly dropping to 5 by 14:00. The evening brings relief, with levels decreasing to 3 at 15:00, and falling to 1 by 16:00. As the day fades away, the UV risk diminishes further, reaching 0 by 19:00. Remember to protect your skin during those peak hours!
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 | 10 | very high | 15 min |
12:00 | 10 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 5 | moderate | 30 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 exhibits significant seasonal variation, peaking during the early months of the year with values reaching up to 16 in February and remaining extremely high through March and April. Notably, the high-risk months for UV exposure are from January to April, as well as July through September, when the UV Index often hits extreme levels, leading to a burn time of just 10 minutes for unprotected skin. As temperatures rise into the summer months, the index drops slightly, with June showing a very high level of 10, and a burn time of 15 minutes. Visitors and residents should take precautions by applying sunscreen, wearing protective clothing, and seeking shade during peak hours, especially in the high-risk months to minimize the risk of skin damage.
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 |
Sumber | 14 | 16 | 15 | 13 | 13 | 10 | 11 | 13 | 14 | 14 | 14 | 14 |
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 |