Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Kromot, Indonesia, where the tropical climate can lead to significant sun exposure. Being aware of UV levels helps protect against sunburn and long-term skin damage, making it essential for outdoor activities and daily life. With peak UV Index levels reaching 10 around noon, the risks of overexposure are heightened, especially during the hottest months. By staying informed about these fluctuations throughout the day—from a manageable 2 in the morning to a dangerous 10 midday—locals can better safeguard their skin and enjoy the beautiful, sun-soaked environment of Kromot safely.
The UV Index reveals a significant morning to afternoon rise in solar intensity, peaking at a striking 10 between 11:00 AM and 12:00 PM. Starting from a modest 2 at 7:00 AM, the index climbs steadily, reaching 6 by 9:00 AM and hitting 9 at 10:00 AM. As the sun reaches its zenith, the UVI holds steady at 10, highlighting a period when sun protection becomes crucial. By 1:00 PM, the index begins its gradual decline, dropping to 8, and easing further to 5 by 2:00 PM. As the day progresses into the late afternoon and evening, the UV Index decreases significantly, falling to 1 by 4:00 PM and dipping to 0 by 6:00 PM. This data underscores the importance of being sun-smart during the peak hours of 11:00 AM to 1:00 PM.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 5 | moderate | 30 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 in the region shows extreme levels from January through April, reaching a peak of 16 in October. This indicates that from January to April and again in September, October, and December, visitors and residents are at high risk for UV exposure, with a dangerously short burn time of just 10 minutes. May sees a decline to an index of 12, though it remains extreme, while June experiences a slight reduction to 10, classified as very high. The peak exposure months, where caution should be exercised, are February, March, September, and October. It is essential for everyone to take precautions during these high-risk months, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun 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 |
| 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 |
| Kromot | 14 | 15 | 15 | 14 | 12 | 10 | 12 | 13 | 15 | 16 | 14 | 15 |