Last updated: July 2, 2025
Understanding the UV Index in Krebetkrajan, Indonesia is crucial for maintaining skin health and preventing sunburn, especially under the region's tropical climate. With peak UV levels reaching a high of 11 around noon, residents and visitors must be vigilant about sun exposure to avoid harmful effects, like skin damage and increased cancer risk. The UV Index provides essential insights into daily sun intensity, enabling you to make informed decisions about outdoor activities and protective measures. In a place where the sun shines brightly, knowing how to navigate UV risks can help keep your skin safe and healthy.
The UV Index throughout the day presents a clear narrative of the sun's intensity. Starting at a gentle 1 at 07:00, the day quickly warms up, reaching 4 by 08:00. As the clock strikes 09:00, it escalates to 7, and by 10:00, it peaks at an intense 10. The intensity continues to surge, hitting a maximum of 11 from 11:00 to 12:00—a reminder to apply that sunscreen! Gradually, the index begins to decline, dropping to 9 at 13:00, and then diminishing to 6 by 14:00. From there, the UV levels swiftly taper off, resting at 3 by 15:00, and further declining to 1 by 16:00 and through 17:00. Finally, as the sun sets, the index cools off to 0 by 18:00, offering a soothing end to the day under the diminishing rays of light.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | 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 consistently remains high, particularly in the winter and fall months, with January to April showing extreme levels at 15 and April slightly decreasing to 14. As we move into the summer months, the index drops slightly, ranging from 10 to 12, before peaking again in September at 15 and surging to 16 in October. The high-risk months are notably from January to April and September to November, where the burn time is critically low at 10 minutes. Visitors and residents should exercise caution during these months by limiting sun exposure, wearing protective clothing, and using sunscreen to prevent skin damage. Being vigilant about UV levels is essential year-round, particularly during the peak periods, to 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 |
| Krebetkrajan | 15 | 15 | 15 | 14 | 12 | 10 | 11 | 13 | 15 | 16 | 15 | 15 |