Last updated: July 2, 2025
In Ponjen, Indonesia, being aware of the UV Index can significantly impact your health and well-being. Understanding UV levels is crucial for preventing sunburn and protecting your skin health; prolonged exposure to high UV radiation can lead to serious skin conditions. With Ponjen's tropical climate, you experience elevated UV levels, particularly from 10 AM to 2 PM, where the index can soar to 11—indicating an extreme risk of harm from unprotected sun exposure. Equip yourself with this knowledge to enjoy the sun safely!
As the sun rises, the UV Index climbs steadily, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it reaches 3, marking the beginning of increased sun exposure. The day continues to heat up, with the index peaking at a remarkable 11 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. As the afternoon sets in, it gradually declines, dropping to 6 by 2:00 PM and subsequently to 3 by 3:00 PM. As the sun begins to descend, the index returns to a safer 1 by 4:00 PM and tapers off to 0 after 6:00 PM. This hourly trend underscores the importance of sun protection during the midday hours when the UV exposure is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 9 | 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 |
Throughout the year, the UV Index exhibits significant seasonal variations, with extreme levels notably persisting from January to April, peaking in February at 16. These high levels continue through most of the warmer months, with July and August also recorded as high-risk months, indicating a UV Index as high as 13. While UV intensity decreases slightly in June, the very high exposure category still warrants caution with a burn time of just 15 minutes. As the year progresses into the fall and winter months, UV levels remain consistent around 14, categorized as extreme, emphasizing that even in colder months, UV protection is crucial. Therefore, residents and visitors should take proactive measures such as applying sunscreen, wearing protective clothing, and limiting sun exposure during peak hours, especially from January through September.
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 |
Ponjen | 14 | 16 | 15 | 13 | 12 | 10 | 11 | 13 | 14 | 14 | 14 | 14 |
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 |