Last updated: July 2, 2025
In Kerang, Indonesia, understanding the UV Index is crucial for protecting your health and enjoying the outdoors safely. With its tropical climate and significant sun exposure, the UV Index often peaks at 12 around noon, indicating a high risk of harm from unprotected sun exposure. By being aware of the UV levels throughout the day, you can take proactive steps to prevent sunburn and maintain your skin's health. Whether you're lounging at the beach or exploring the vibrant landscapes, understanding UV levels can help you enjoy all that Kerang offers while keeping your skin safe from damaging rays.
As the day unfolds, the UV Index rises steadily, peaking at a striking 12 between noon and 1 PM, a clear signal for the sun's intense power. Starting from a gentle 1 at 7 AM, it escalates to a moderate 4 by 9 AM, and then surges to an 8 by 10 AM, urging early risers to seek shade. The index reaches its zenith with an aggressive 11 at 11 AM, warning of the necessity to protect skin. As the afternoon wears on, it begins to decline, dropping to a 9 by 2 PM, and dwindling further to a 3 by 4 PM. By the time the clock strikes 6 PM, the index returns to a modest 1, providing a gentle reminder of the day’s solar intensity before fading to 0 by 7 PM. Enjoy the sun, but stay safe!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index remains notably high, with values consistently in the extreme exposure category, particularly between January and October. The highest UV readings occur in February and March at 16, while April and May follow closely with indices of 15 and 14, respectively. As summer approaches, the index dips slightly in June and July to 12, before rising again in August to 14 and peaking in September at 15. The months of February, March, September, and October are critical high-risk periods for UV exposure. Visitors and residents are strongly advised to take precautionary measures during these months, including wearing sunscreen, protective clothing, and seeking shade, as the potential for skin damage from sun exposure is significant, with a burn time of just 10 minutes across all months.
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 |
| Kerang | 15 | 16 | 16 | 15 | 14 | 12 | 12 | 14 | 15 | 16 | 14 | 14 |