Last updated: July 2, 2025
In Muara Siberut, Indonesia, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels helps in preventing sunburn and reducing the risk of long-term skin issues, especially in a tropical climate where UV exposure can be intense. With a typical peak UV Index reaching 12 around midday, residents and visitors alike should take precautions to shield themselves from harmful rays. Leverage this guide to stay informed and enjoy the beauty of Muara Siberut while keeping your skin safe!
The UV Index throughout the day presents a clear illustration of rising intensity, peaking sharply at 12 around noon. Starting from a gentle 1 at 07:00, the index escalates as the sun climbs higher in the sky, reaching 11 at 11:00 and holding steady at 12 until 13:00. As the afternoon progresses, a gradual decline follows; the UV Index dips to 10 by 14:00, then further decreases to 7 at 15:00. By late afternoon, the intensity drops to 3 at 16:00, and eventually settles back down to 1 by 17:00 and beyond, with the index closing out the day at 0 after 19:00. This data underscores the importance of sun protection during those peak hours to stay safe under the sun!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index indicates consistently extreme exposure levels, ranging from 12 to 16, with a constant burn time of just 10 minutes. The high-risk months for UV exposure include January, February, March, April, August, September, October, and November, all maintaining an index of 14 or higher. This persistent high level of UV radiation underscores the importance for visitors and residents to take proactive precautions, such as using broad-spectrum sunscreen, wearing protective clothing, and seeking shade to minimize the risk of skin damage, particularly during these critical months.
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 |
| Muara Siberut | 15 | 15 | 16 | 16 | 14 | 12 | 12 | 14 | 15 | 15 | 14 | 14 |