Last updated: June 2, 2025
Understanding the UV Index in Geser, Indonesia is crucial for maintaining skin health and preventing sunburn, especially in a region known for its tropical climate and high UV exposure. With peak levels reaching up to 11 around midday, awareness of UV levels can significantly impact your outdoor activities and overall well-being. As the sun rises, so too does the potential for skin damage; thus, it's essential to be informed about the daily fluctuations in UV radiation to protect yourself and enjoy the beautiful surroundings of Geser safely.
The UV Index data paints a vivid picture of the sun's intensity throughout the day. Starting off slow at 07:00 with a minimal index of 1, the UV levels begin to rise quickly. By 09:00, it climbs to 4, but the real surge happens at 10:00, peaking at an impressive 8. The sky reaches its zenith of intensity during the midday hours, 11:00 and 12:00, where the UV Index soars to a blistering 10 and 11, respectively. As the afternoon progresses, a slight decline begins, dropping to 9 at 14:00 and tapering off further to 5 by 15:00. As the sun sets, the UV Index falls dramatically, reaching 3 at 16:00, and dwindling to 1 by 18:00 and 0 by 19:00. This data highlights the importance of sun protection during the peak hours, particularly between 11:00 and 14:00, ensuring a safe and enjoyable outdoor experience.
| 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 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 5 | moderate | 30 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 in this region remains at a high level, with values between 14 and 17 predominantly in the first half of the year, signaling an extreme exposure category. The highest risk months for UV exposure are from January to April, where the UV Index peaks at 17 in March. As summer approaches, while there is a slight decrease in UV levels, they remain elevated, particularly in August and September. It’s important for visitors and residents to exercise caution year-round: wear protective clothing, use broad-spectrum sunscreen with high SPF, and limit sun exposure during peak hours, especially when the UV Index is at its highest. Regular checks of the UV Index are recommended to stay informed and safe.
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 |
| Geser | 15 | 16 | 17 | 16 | 13 | 11 | 12 | 13 | 15 | 16 | 15 | 14 |