Last updated: August 1, 2025
In Kiruru, Indonesia, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. With an Af climate, residents and visitors alike often experience high levels of UV exposure, especially during midday when the index peaks at a staggering 12. Awareness of these UV levels helps you make informed decisions about sun protection, ensuring you enjoy the tropical sun without the harmful effects. Take note of the daily fluctuations—while mornings may present less risk, by late morning and early afternoon, protective measures become essential to avoid skin damage and long-term health issues.
The UV Index paints a vivid picture of the sun’s intensity throughout the day. Starting low at 07:00 with a mere 1, the index quickly rises, reaching 2 by 08:00. By 09:00, it escalates to 5, signaling stronger rays ahead. The real peak hits at 12:00, where it skyrockets to a blistering 12—a critical warning for sun exposure. This high intensity remains nearly unchanged until 13:00 with 11 before gradually tapering off. By 15:00, it dips to 5, and as the sun begins its descent, the index drops sharply to 1 by 17:00. Finally, the day concludes with no threat at 18:00 and 19:00, showing that the evening brings a welcome respite from the sun’s fierce grip. 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 | 13 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 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 |
The seasonal UV changes reveal that from January to May, the UV Index remains consistently high, peaking at 17 in February and March, indicating an extreme exposure category with a burn time of just 10 minutes. As the year progresses, the Index slightly decreases during June and July, stabilizing at 12, but still signals caution. August sees a rise again to 14, followed by a gradual decline into the fall months. The highest risk months are clearly February and March, where protective measures are essential. Visitors and residents are strongly advised to limit sun exposure, wear protective clothing, and apply sunscreen frequently, especially during these critical months. Taking these precautions is vital to avoid serious skin damage year-round, as several months show an extreme risk for UV 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 |
| Kiruru | 15 | 17 | 17 | 16 | 14 | 12 | 12 | 14 | 15 | 15 | 15 | 14 |