Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Ngroto, Indonesia, a region with a tropical climate that can pose unique sun exposure risks. With UV levels peaking around 11:00 AM, reaching a remarkable 12, it's essential to be aware of how these levels influence skin health and the potential for sunburn. By keeping informed about daily UV fluctuations, you can take proactive measures to protect your skin while enjoying the beautiful sunny days that Ngroto has to offer. Stay safe and sun-smart by monitoring the UV Index, which serves as a vital tool for outdoor activities in this vibrant locale.
As the day begins, the UV Index starts at a mild 2 at 7:00 AM, but it quickly escalates as the sun rises. By 10:00 AM, it peaks at a striking 10, indicating a high risk of harm from unprotected sun exposure. The intensity continues to dominate until 12:00 PM, when it slightly dips to 11 but remains a major concern. As afternoon approaches, the UV Index gradually descends from 9 at 1:00 PM to 6 by 2:00 PM, before more noticeable declines occur, settling at 3 by 3:00 PM. The evening brings a steady reduction, with readings plummeting to 1 by 4:00 PM and 5:00 PM, and finally dropping to zero after 6:00 PM. It's a vivid reminder that during peak hours, taking precautions against sun exposure is essential for skin health!
| 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 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 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 | 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 variability throughout the year, with the highest levels peaking between January and March, where values reach an extreme UV Index of 15. During these months, the recommended burn time is a mere 10 minutes, indicating a crucial risk for skin damage. Following this peak, UV levels begin to slightly decline, though July and August still present extreme risks with indexes of 11 and 13, respectively. As we transition into the fall months, September and October remain at a high UV Index of 14. Notably, November and December maintain this extreme category, highlighting a consistent risk throughout the year. For visitors and residents, it is essential to prioritize sun protection strategies, particularly during high-risk months (January through March, and July through October), by using sunscreen, wearing protective clothing, and limiting direct sun exposure during peak hours.
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 |
| Ngroto | 14 | 15 | 15 | 13 | 12 | 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 |