Last updated: June 2, 2025
In Gajahrejo Krajan, Indonesia, staying informed about the UV Index is crucial for safeguarding your skin health and preventing sunburn. With the region's Aw climate, characterized by warm temperatures and significant solar exposure, understanding UV levels can play a vital role in your daily outdoor activities. The UV Index in Gajahrejo reaches its peak at 10:00 and 11:00 AM, soaring to levels that can cause skin damage in just a matter of minutes. By being aware of these UV fluctuations throughout the day, you can take the necessary precautions to enjoy the sun safely while protecting your skin for the long term.
As the sun rises, the UV Index starts off gently at 1 at 07:00, indicating minimal risk. However, as the day unfolds, it quickly climbs to 4 by 08:00 and reaches 6 by 09:00, signaling increasing sun intensity. The heat peaks at 11:00 and 12:00 with a maximum UV Index of 10, marking a high risk for harm from unprotected sun exposure. Fortunately, the intensity begins to wane in the afternoon, dropping to 8 at 13:00, then decreasing further to 5 at 14:00. By 15:00, it falls to 3, before tapering off to 1 by 16:00, and finally, the UV Index settles at 0 after 18:00, marking the end of a sun-filled day. Remember to protect your skin during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | 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 |
The UV Index readings throughout the year indicate consistently high to extreme levels of ultraviolet radiation, particularly during the winter months from January to March and again from September to November. Visitors and residents should be especially cautious during these high-risk periods, as the burn time is minimal at just 10 minutes in many months. April to August sees a slight reduction in UV intensity, but the burn time remains critical, especially in June and July with 15 minutes. Therefore, it is crucial for everyone to adhere to protective measures such as wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize skin damage throughout the year.
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 |
| Gajahrejo Krajan | 15 | 15 | 15 | 14 | 12 | 10 | 11 | 14 | 15 | 15 | 15 | 15 |