Last updated: May 3, 2025
In the vibrant region of Nggalak, Indonesia, awareness of the UV Index is crucial for ensuring skin health and preventing sunburns, especially during the peak hours of sun exposure. Understanding the fluctuating UV levels throughout the day, particularly during the intense hours between 10 AM and 2 PM when the Index can soar to 12, allows residents and visitors to protect themselves against harmful ultraviolet rays. With its tropical climate typical of the Aw climate zone, Nggalak experiences high UV exposure risks year-round, making it essential for everyone to stay informed and take the necessary precautions to enjoy the sun safely.
The UV Index throughout the day reveals a dynamic sun intensity pattern that peaks at 12 between 11:00 and 12:00, indicating a high risk for unprotected skin. Early risers are greeted with a mild 1 at 07:00, gradually increasing to 3 by 08:00. By 09:00, it surges to 6, suggesting that sun protection is becoming increasingly important. The intensity remains elevated at 9 by 10:00 and holds steady at 12 during the late morning hours. As the afternoon progresses, the UV Index starts to dip, falling to 11 at 13:00 and then declining to 8 by 14:00. Late afternoon sees a significant drop, with values dropping to 4 at 15:00, and tapering off to 2 by 16:00. Finally, the UV Index returns to a safe 1 at 17:00, before falling to 0 as the sun sets, emphasizing the importance of being sun-smart during 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 | 12 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 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 displays a consistently extreme exposure category throughout the year, with values peaking at 16 during February, March, and September. January through April and September also experience high UV levels, making these months particularly risky for sun exposure, as the burn time is just 10 minutes across all months. Residents and visitors should take precautionary measures during these high-risk months including wearing sunscreen, protective clothing, and seeking shade to minimize UV exposure. Even in the slightly lower UV months of May through August, caution is still advised, as exposure can still lead to skin damage within a short time. Stay vigilant and protect your skin year-round!
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 |
| Nggalak | 15 | 16 | 16 | 15 | 13 | 11 | 12 | 14 | 16 | 15 | 15 | 14 |