Last updated: June 2, 2025
In Simpang Ulim, Indonesia, awareness of the UV Index is crucial for safeguarding your skin health under the tropical sun. As the region experiences an Af climate, which is characterized by high humidity and consistent sunshine, understanding UV levels is essential to prevent sunburn and long-term skin damage. With UV Index readings peaking at a staggering 13 around noon, the risks associated with sun exposure are significant. Adopting protective measures during peak hours not only ensures your comfort but also helps maintain overall skin health in this beautiful, sun-drenched locale. Stay informed and enjoy the sun safely!
As the sun rises, the UV Index gradually climbs, starting at a maximum of 1 at 07:00. By 08:00, it doubles to 2, hinting at the increasing solar intensity. The real surge begins around 09:00, where it reaches 4, but the peak occurs at 12:00—a staggering 13 on the index. From 11:00 to 13:00, sun seekers should exercise caution as the UV levels are dangerously high, peaking at 11. The afternoon sees a decline, with values tapering down to 10 at 14:00 and gradually descending to 4 by 16:00. As evening falls, the index drops to 1 by 18:00, before settling at 0 at 19:00. Remember to protect your skin during those midday hours when the sun's rays are at their most intense!
| 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 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 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 remains notably high throughout the year, with values ranging from 12 to 15, indicating an extreme exposure category, particularly in the first few months of the year. January through April are marked as the highest risk months, all recording a UV Index of either 15 or 14, requiring vigilance to prevent sunburn in just 10 minutes of exposure. While the UV Index slightly decreases in the summer months, July and August still maintain high levels at 12 and 13, respectively. Visitors and residents are strongly advised to protect themselves from sun exposure by wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours, especially from January through September when the UV levels pose significant risk for 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 |
| Simpang Ulim | 13 | 15 | 15 | 15 | 14 | 13 | 12 | 13 | 14 | 14 | 13 | 12 |
| Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |