Last updated: June 2, 2025
Understanding the UV Index in Rantau Panjang, Indonesia is essential for protecting skin health and preventing sunburn. With a tropical climate characterized by intense sunlight and high UV levels, awareness of daily UV exposure can help residents and visitors make informed decisions about sun safety. During peak hours, particularly between 11:00 AM and 1:00 PM, the UV Index often reaches hazardous levels of 11 to 12, underscoring the importance of seeking shade and applying sunscreen. By staying vigilant about these UV conditions, you can enjoy the beautiful outdoor lifestyle of Rantau Panjang while keeping your skin safe and healthy.
The UV Index throughout the day showcases a dramatic rise and fall in intensity, peaking at 12 around noon. Starting from a mild 1 at 07:00, it escalates to a noticeable 5 by 09:00 and skyrockets to a sizzling 11 at 11:00. The highest point occurs just after lunchtime, hitting 12 at 12:00, marking the most critical time for sun exposure. As the afternoon progresses, the index gradually declines, tapering off to 5 by 15:00, before retreating back to a safe 1 by 17:00. By 19:00, the UV Index drops to a 0, signaling a transition from day to night, reminding us to stay vigilant about 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 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index displays extremely high levels of ultraviolet radiation throughout the year, consistently remaining between 14 and 16 from January to April and September to December. The months of January, February, March, and April experience the highest UV indexes, making them crucial high-risk months for sun exposure, with a burn time as short as 10 minutes in these periods. Visitors and residents should take precautionary measures such as wearing protective clothing, using sunscreen, and seeking shade, especially during peak hours, to reduce their risk of skin damage. As the UV Index begins to dip slightly in June and July, it still remains within the extreme category, warranting continued vigilance. Therefore, it is essential for everyone to stay informed and prioritize sun safety all year round.
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 |
| Rantau Panjang | 15 | 16 | 16 | 15 | 14 | 12 | 12 | 14 | 15 | 15 | 14 | 14 |