Last updated: June 2, 2025
In Rancamaya, Indonesia, being aware of the UV Index is crucial for protecting your skin and maintaining overall health. Understanding UV levels is essential, especially for preventing sunburn and reducing the long-term risks of skin damage. With a hot, tropical climate characterized by intense midday sun, Rancamaya experiences significant UV exposure, peaking at a staggering 11 around noon. This highlights the importance of staying informed and taking precautions during the highest risk hours to safeguard your skin while enjoying the beautiful outdoors.
As the day unfolds, the UV Index demonstrates a striking rise in intensity. At 07:00, it starts at a modest 1, but quickly escalates, reaching 3 by 08:00. The peak arrives at 12:00, where the index soars to a blazing 11, signaling the need for sun protection. As the afternoon progresses, it begins to decline, dropping to 9 at 13:00 and then tapering off to 6 by 14:00. Gradually, the UV levels fall further to 3 at 15:00, before easing to a safe 1 by 17:00. By the evening, the UV Index diminishes entirely, hitting 0 by 18:00 and remaining at that level through to 19:00. This ebb and flow of UV exposure underscores the importance of vigilance during peak sunlight 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 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 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 | 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 exhibits consistently extreme levels throughout the year, with readings staying between 11 and 16. Notably, the highest UV index months are February (16) and March (15), while the lower end is seen in June and July (11). Visitors and residents should be particularly cautious during January through April and September through November, where the UV index remains high, leading to a burn time of just 10 minutes. It is vital to protect your skin by wearing sunscreen, protective clothing, and seeking shade during peak sun hours, regardless of the month, to mitigate the risks associated with prolonged 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 |
| Rancamaya | 14 | 16 | 15 | 14 | 13 | 11 | 11 | 13 | 14 | 15 | 15 | 14 |
| Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |