Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Sarongan, Indonesia, where the tropical climate brings intense sun exposure year-round. With UV levels peaking as high as 12 during midday, awareness of these fluctuations can be a key factor in sunburn prevention and long-term skin health. By keeping an eye on the UV Index, you can take proactive measures to protect your skin from harmful rays and enjoy the vibrant outdoors safely. Whether basking on the beautiful beaches or exploring local attractions, knowing the UV exposure risks in Sarongan can make all the difference in your sun safety routine.
As the sun rises, the UV Index begins its ascent, starting at a mild 2 at 7:00 AM. By 8:00 AM, it reaches a moderate 5, signaling the need for some sun protection. The intensity peaks dramatically around 11:00 AM and 12:00 PM, hitting a striking 12, indicating high risk of harm from unprotected sun exposure. As the afternoon rolls in, the index gradually declines, dropping to 9 by 1:00 PM and 6 at 2:00 PM. By the late afternoon, the index continues to decline steeply, falling to 3 at 3:00 PM and further to 1 by 4:00 PM and 5:00 PM. As twilight approaches, the UV Index finally settles at 0 by 6:00 PM, marking the end of a sun-filled day. Remember: during those peak hours, stay protected!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 8 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 12 | 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 |
Throughout the year, the UV Index remains notably high, with several months categorized as extreme exposure risk. From January to April, the UV Index consistently peaks at 15, with a dangerously short burn time of just 10 minutes. Even as the index drops to 12 in May and July, it still poses a significant risk. June marks a slight decrease to 10 (very high), but as summer progresses into August, the index climbs back to 14. The trend continues into September and October, where the index reaches a staggering 16, with a critical 10-minute burn time. Visitors and residents alike should take precautions from January through October, particularly during these high-risk months, by wearing protective clothing, sunscreen, and seeking shade during peak hours to minimize potential sun 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 |
| 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 |
| Sarongan | 15 | 15 | 15 | 14 | 12 | 10 | 12 | 14 | 15 | 16 | 15 | 15 |