Last updated: July 2, 2025
In Kediri, Indonesia, understanding the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. With the tropical Am climate that characterizes this region, the sun's intensity can lead to significant UV exposure risks, particularly during peak hours. Knowing the UV levels is essential to prevent sunburn and maintain long-term skin health. As the index swings from a safe 1 in the early morning to a critical 11 around noon, staying informed empowers residents and visitors alike to take necessary precautions—protecting their skin and enjoying the beautiful Indonesian sunshine!
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 |
The UV Index exhibits significant variability throughout the year, with the highest levels peaking between January and March, where values reach an extreme UV Index of 15. During these months, the recommended burn time is a mere 10 minutes, indicating a crucial risk for skin damage. Following this peak, UV levels begin to slightly decline, though July and August still present extreme risks with indexes of 11 and 13, respectively. As we transition into the fall months, September and October remain at a high UV Index of 14. Notably, November and December maintain this extreme category, highlighting a consistent risk throughout the year. For visitors and residents, it is essential to prioritize sun protection strategies, particularly during high-risk months (January through March, and July through October), by using sunscreen, wearing protective clothing, and limiting direct sun exposure during peak hours.
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 |
| Kediri | 14 | 15 | 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 |