Last updated: June 2, 2025
Understanding the UV Index is crucial in Pematang Raya, Indonesia, where the tropical climate amplifies sun exposure risks. The UV Index reveals daily variations in ultraviolet radiation levels, helping residents and visitors alike prevent harmful effects like sunburn and long-term skin damage. With peak UV levels reaching an alarming 12 between 12:00 PM and 1:00 PM, it's essential to stay informed and take appropriate precautions. By recognizing the UV Index's significance, you can better protect your skin and enjoy the beautiful sunlit days that Pematang Raya has to offer.
The UV Index starts off low at 1 around 07:00, gradually rising to a moderate 2 by 08:00. As the sun reaches its peak, the index sharply escalates, hitting 8 at 10:00 and peaking at a striking 12 between 12:00 and 13:00. This intense solar exposure signals a strong need for protection, especially with the index maintaining an elevated 11 at 11:00 before beginning a gradual decline. By 14:00, it drops to 9, then further down to 6 at 15:00, and continues to fall, reaching 1 by 17:00. As the evening approaches, the UV levels taper off to 0 by 19:00, indicating a complete cessation of harmful UV exposure. Stay savvy and prioritize sun safety 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 | 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 | 9 | very high | 15 min |
| 15:00 | 6 | 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 |
The UV Index exhibits high levels of intensity throughout the year, particularly from January to March, when it peaks at 16, indicating an extreme exposure category. April through August maintains similarly elevated values, with slight fluctuations, and the burn time remains consistently low at just 10 minutes. As we transition into the fall months, the UV Index remains high, particularly in September and October, both at 15, before gradually decreasing to 14 in November and 12 in December. **Visitors and residents are advised to take precautions—including seeking shade, wearing protective clothing, and applying sunscreen—especially during these high-risk months from January to September when the UV Index is particularly severe. Regular checks on UV levels can further ensure safety while enjoying outdoor activities.
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 |
| Pematang Raya | 13 | 15 | 16 | 15 | 15 | 12 | 13 | 14 | 15 | 15 | 14 | 12 |