Last updated: May 3, 2025
In Kalangga, Indonesia, understanding the UV Index is essential for protecting your skin and overall health. With soaring levels peaking at 12 around noon, awareness of UV radiation can significantly reduce the risk of sunburn and long-term skin damage. The tropical climate of Kalangga, typical of a tropical wet-and-dry climate, exposes residents and visitors to fluctuating UV levels throughout the day. Knowing when to seek shade or apply sunscreen can make all the difference on sun-soaked days, ensuring your time under the sun is both enjoyable and safe.
As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 7:00 AM. By 8:00 AM, it climbs to 3, signaling the start of a day that will soon heat up. At 9:00 AM, the index reaches 6, prompting the need for some sun protection if you're heading outdoors. The peak hits around 12:00 PM, soaring to a blistering 12, making it essential to seek shade and wear sunscreen. As the afternoon progresses, the levels begin to decline, with a gentle drop to 10 at 1:00 PM, followed by 8 at 2:00 PM. By 3:00 PM, the UV Index lessens to 4, gradually fading to 2 at 4:00 PM. As daylight dwindles, the index falls to 1 at 5:00 PM and finally settles at 0 after 6:00 PM, marking the end of a high UV day. Remember to stay sun-safe 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 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 4 | 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 |
The UV Index shows extreme levels during the winter and early spring months, with values reaching up to 16 in February and remaining high at 15 from January to April. As the season transitions into May, the index drops slightly to 12, but still remains in the extreme category. June marks a shift to very high UV levels at 10, providing a bit more time for safe exposure at 15 minutes. However, from July through September, the index returns to extreme levels, requiring careful attention, especially with a 10-minute burn time. The high-risk months for UV exposure are from January to October, highlighting the need for visitors and residents to take precautions, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours to minimize 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 |
| Kalangga | 15 | 16 | 15 | 14 | 12 | 10 | 11 | 13 | 15 | 15 | 15 | 15 |