Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Umanggudang, Indonesia, where the tropical climate brings intense sunlight and elevated UV levels. Monitoring these levels not only aids in preventing sunburn but is essential for long-term skin health, particularly during peak midday hours when the risk is highest. With a climate characterized by warm temperatures and significant UV exposure, being aware of the UV Index can help you enjoy outdoor activities safely while protecting your skin from harmful effects. From a maximum UV Index of 12 at noon to more moderate levels later in the day, knowing when to seek shade or apply sunscreen can make all the difference in your sun protection strategy.
Today’s UV Index reveals a striking pattern of solar intensity throughout the day. The morning begins gently at 7:00 AM with a low index of 1, gradually climbing to 3 by 8:00 AM. As the sun rises higher, the index peaks at a blazing 12 at noon, signaling the hour of greatest sun exposure. Throughout the early afternoon, UV levels remain high at 11 before starting their descent after 2:00 PM, dropping to 4 by 3:00 PM. By late afternoon, the index dwindles to a safe 1 by 5:00 PM, and the sun sets, leaving us with a calming 0 from 6:00 PM onward. It’s important to stay protected during those hours of maximum UV intensity!
| 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 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 4 | 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 displays pronounced seasonal changes, with extreme levels persisting from January through April and gradually decreasing by June to very high before returning to extreme later in the year. The high-risk months—defined by their consistently high UV indices—are January, February, March, April, July, August, September, October, and November, all featuring an index of 15 or higher. Notably, October and February reach the peak index of 16. Residents and visitors are strongly advised to limit sun exposure, especially during peak hours, wear protective clothing, and use sunscreen to mitigate the risks of severe sunburn during these months. Careful sun protection practices are crucial, particularly from 10 minutes in strong UV conditions.
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 |
| Umanggudang | 15 | 16 | 16 | 15 | 12 | 10 | 12 | 13 | 15 | 16 | 15 | 15 |