Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of Kema, Indonesia, where the tropical climate can significantly increase the risk of harmful UV radiation. With peak UV levels reaching as high as 13 during midday, awareness of these indices is vital for preventing sunburn and safeguarding skin health. Whether you're lounging on the beach or exploring the vibrant surroundings, being informed about local UV exposure risks will empower you to take proactive measures, ensuring you enjoy the sun safely and smartly. Remember, a little awareness goes a long way in protecting your skin while enjoying the beauty of Kema!
The UV Index data reveals a dynamic shift throughout the day, starting with a low 1 at 07:00 that quickly rises as the sun climbs higher. By 09:00, the index reaches 7, indicating moderate exposure risk, which escalates to a peak of 13 by 12:00—a clear signal for sun safety! As the afternoon progresses, the intensity begins to taper off, dropping to 8 at 14:00 and further descending to 2 by 16:00. The day concludes with minimal UV presence, registering 0 after 18:00. It's a compelling reminder of the sun's powerful influence during midday—plan accordingly!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 8 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 14 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | 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 remains at an extreme level, with values consistently ranging from 13 to 17. Notably, the high-risk months for UV exposure are from January to April, where the UV Index peaks at 16-17 and requires a rapid burn time of just 10 minutes. The UV Index then gradually decreases, but remains significant through to November, only dropping to 13 in December. Given these consistently high UV levels, it is crucial for both visitors and residents to practice effective sun safety, including wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak sunlight hours to mitigate the risk of skin damage.
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 |
| Kema | 15 | 16 | 17 | 16 | 14 | 13 | 13 | 14 | 15 | 15 | 14 | 13 |