Last updated: August 1, 2025
In the tropical paradise of Alue Bilie, Indonesia, awareness of the UV Index is crucial for safeguarding your skin. The intensity of ultraviolet rays can fluctuate significantly throughout the day, peaking at a high level of 12 between noon and 1 PM, making it essential to monitor these UV levels to prevent sunburn and maintain overall skin health. With an Af climate, characterized by warm temperatures and extended sunshine, residents and visitors are at increased risk of UV exposure. By staying informed about the UV Index, you can make smarter choices about sun protection, ensuring that your time under the tropical sun is both enjoyable and safe.
The UV Index data for the day reveals a dramatic rise in sun exposure as the hours progress. Starting at a gentle 1 at 07:00, it swiftly climbs to 2 by 08:00. By 09:00, the index reaches a moderate 4, but it’s from 10:00 onwards that the sun’s strength truly shines, peaking at an intense 12 during the noon hours of 12:00 and 13:00. This memorable midday height signifies the critical time for protection against harmful UV rays. The afternoon sees a slight drop, with values decreasing to 11 at 14:00 and then tapering down to 7 at 15:00. As the sun begins its descent, the UVI returns to safer levels, falling to 4 by 16:00, and dwindling to 1 at 18:00 before settling at 0 by 19:00. As such, it’s crucial to stay vigilant and protect your skin during peak UV hours!
| 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 | 12 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index data indicates significant seasonal changes, with extreme exposure levels persisting throughout the year. January to April shows the highest UV Index readings, peaking at 16 in March. Notably, April to September also maintains elevated levels (between 12 and 15). The high-risk months where caution is essential fall primarily between January and April, during which the UV Index reaches extreme levels of 14 to 16, allowing for a burn time of just 10 minutes. As such, it is crucial for both visitors and residents to take precautions, such as wearing protective clothing, sunscreen, and seeking shade, especially during these peak months to minimize the risk of sunburn and long-term skin 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 |
| Alue Bilie | 14 | 15 | 16 | 15 | 15 | 12 | 12 | 14 | 14 | 14 | 13 | 12 |