Last updated: July 2, 2025
In Sidomulyo Kulon, Indonesia, staying informed about the UV Index is crucial for safeguarding your skin and overall health. With intense sunlight common in this Aw climate zone, understanding UV levels can help you prevent sunburn and long-term skin damage. The UV Index peaks at 11 around midday, highlighting the importance of taking precautions during the most hazardous times of the day. By being aware of these levels, residents can enjoy the sun safely while protecting their skin from potential harm.
The UV Index throughout the day presents a clear narrative of the sun's intensity. Starting at a gentle 1 at 07:00, the day quickly warms up, reaching 4 by 08:00. As the clock strikes 09:00, it escalates to 7, and by 10:00, it peaks at an intense 10. The intensity continues to surge, hitting a maximum of 11 from 11:00 to 12:00—a reminder to apply that sunscreen! Gradually, the index begins to decline, dropping to 9 at 13:00, and then diminishing to 6 by 14:00. From there, the UV levels swiftly taper off, resting at 3 by 15:00, and further declining to 1 by 16:00 and through 17:00. Finally, as the sun sets, the index cools off to 0 by 18:00, offering a soothing end to the day under the diminishing rays of light.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | 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 |
The UV Index readings throughout the year indicate consistently high to extreme levels of ultraviolet radiation, particularly during the winter months from January to March and again from September to November. Visitors and residents should be especially cautious during these high-risk periods, as the burn time is minimal at just 10 minutes in many months. April to August sees a slight reduction in UV intensity, but the burn time remains critical, especially in June and July with 15 minutes. Therefore, it is crucial for everyone to adhere to protective measures such as wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize skin damage throughout the year.
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 |
| Sidomulyo Kulon | 15 | 15 | 15 | 14 | 12 | 10 | 11 | 14 | 15 | 15 | 15 | 15 |