Last updated: May 3, 2025
Understanding the UV Index in Sumbawa Besar, Indonesia is crucial for protecting your skin and maintaining overall health under the tropical sun. With peak UV levels reaching as high as 12 around noon, awareness of these readings can help prevent sunburn and long-term skin damage. Sumbawa Besar's Aw climate typically features strong sunlight, making it essential for residents and visitors to stay informed about UV exposure risks throughout the day. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while safeguarding your skin's health.
As the day unfolds, the UV Index begins to rise steadily, peaking at 12 around noon, indicating a high risk of harm from unprotected sun exposure. Starting from a mild 1 at 07:00, it climbs to 2 by 08:00, then surges to a significant 9 by 10:00. The intensity continues to escalate, reaching its maximum at 11 by 11:00, just before noon. After a slight dip to 8 by 14:00, the UV Index begins its gradual decline, dropping to 2 by 16:00, and finally resting at 0 by 18:00—a clear indication that the sun's rays are no longer a concern. To protect your skin, it's crucial to seek shade and apply sunscreen during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 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 | 5 | 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 |
Throughout the year, the UV Index displays significant seasonal variations, with the highest values occurring between January and April, where it consistently remains at an extreme level of 15 or 16. These months, especially January through March, are marked by a very rapid burn time of just 10 minutes, indicating critical skin protection is required. May sees a slight decrease to 13, but the risk remains extremely high, continuing through July and August with an index of 12 and 13, respectively. By June, the UV Index drops to 10, categorized as very high, extending the burn time to 15 minutes. As summer fades into early fall, the UV Index begins to climb again, peaking at 14 in September and stabilizing around 14 to 15 from October to December. Visitors and residents should prioritize sun protection during these high-risk months, use broad-spectrum sunscreen, wear protective clothing, and seek shade, especially during midday hours, to minimize the harmful effects of UV exposure.
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 |
| Sumbawa Besar | 15 | 16 | 16 | 15 | 13 | 10 | 12 | 13 | 14 | 15 | 14 | 14 |