Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Prengbatu, Indonesia, where the tropical climate can expose individuals to varying levels of ultraviolet radiation throughout the day. With peak UV levels reaching a striking 11 at noon, awareness of these values is essential for sunburn prevention and maintaining long-term skin health. By grasping the implications of UV exposure—especially during the hours of 10 AM to 2 PM when risks are highest—locals can better protect themselves from harmful effects while enjoying the beautiful, sunny weather this region has to offer. Stay informed and safeguard your skin against the sun’s powerful rays!
As the sun rises, the UV Index begins to climb, peaking dramatically at 11 by 11:00 AM, signaling the day's intense sun exposure. From a gentle 2 at 7:00 AM, the index escalates through the morning, hitting 9 by 10:00 AM and reaching a midday pinnacle of 11. After this height, the UV levels start their gradual descent, dropping to 8 by 1:00 PM and further tapering off to 5 at 2:00 PM. As afternoon turns to evening, the UV Index decreases significantly, settling at 0 by 7:00 PM. This data highlights the importance of sun protection during the peak hours, especially between 10:00 AM and 2:00 PM, when the potential for skin damage is at its highest. Stay safe and enjoy the sunshine wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 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 in the region exhibits extreme levels throughout the year, with a consistent high-risk period from January to March where the index peaks at 16 in February. While the intensity slightly diminishes from April to June, it remains at an extreme level, with July and August experiencing 11 to 13. As we transition into the fall, the index remains concerning, with September and October both reaching 15. Given these consistent and elevated UV levels, visitors and residents are strongly advised to take precautions, such as wearing protective clothing, applying sunscreen, and seeking shade, especially during peak sun exposure times. Remember, even on cloudy days, UV rays can be harmful, so staying vigilant year-round is crucial for skin health.
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 |
| Prengbatu | 13 | 16 | 15 | 14 | 13 | 11 | 12 | 13 | 15 | 15 | 14 | 14 |