Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Gayam, Indonesia, where the warm, tropical climate can lead to significant sun exposure risks. With UV levels soaring up to 10 during midday, awareness of these readings is essential for preventing sunburn and maintaining skin health. By monitoring the UV Index, residents can take proactive measures to protect themselves from harmful radiation and enjoy the outdoors safely. Whether you're lounging on the beach or exploring local attractions, knowing when to seek shade or apply sunscreen can make a world of difference in your day under the sun.
As the sun rises, the UV Index begins to climb, starting at a gentle 1 at 07:00. By 08:00, it escalates to a moderate 3, but the real intensity hits by 10:00, peaking at a striking 10 from 11:00 to 12:00—a clear signal for sun safety awareness. As the afternoon progresses, the index gradually declines, dipping to 8 at 13:00 and then swiftly dropping to 5 by 14:00. The evening brings relief, with levels decreasing to 3 at 15:00, and falling to 1 by 16:00. As the day fades away, the UV risk diminishes further, reaching 0 by 19:00. Remember to protect your skin during those peak 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 | 9 | very high | 15 min |
| 11:00 | 10 | very high | 15 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 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 |
| Gayam | 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 |