Last updated: May 3, 2025
In Bonak, Indonesia, being aware of the UV Index is crucial for protecting your skin and overall health. With peak UV levels reaching a staggering 12 during midday, understanding these ratings can help you prevent sunburn and reduce long-term skin damage. The tropical climate of Bonak means exposure risks are elevated, especially between 10 AM and 2 PM when UV radiation is at its highest. Stay informed and take proactive measures to enjoy the sun safely!
As the sun rises, the UV Index starts off mild at 1 at 07:00, but it quickly gains intensity as the day progresses. By 09:00, it escalates to 6, signaling that sun protection is becoming essential. The peak occurs at 11:00 and 12:00, where the index reaches a striking 12, representing a high risk of harm from unprotected sun exposure. Fortunately, the intensity begins to wane after 13:00, dropping to 10 and continuing its descent throughout the afternoon. By 16:00, it falls to a negligible 1, and the UV exposure dwindles to 0 by 18:00 and 19:00. It's a day to enjoy the sun but remember to stay protected during those peak hours!
| 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 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | 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, UV Index levels remain alarmingly high, with January through April registering an extreme exposure category, peaking at 16 in both February and March. Notably, July, August, and October also exhibit extreme levels of UV radiation. June marks a slight decrease to a very high category of 10, providing a brief respite. Despite this, the high-risk months for UV exposure span from January to April and again from July to October, during which a mere 10 minutes of unprotected sun exposure can lead to burns. It is crucial for both visitors and residents to take preventive measures such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize the risks associated with prolonged sun exposure.
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 |
| Bonak | 15 | 16 | 16 | 14 | 12 | 10 | 11 | 13 | 15 | 16 | 15 | 15 |