Last updated: June 2, 2025
In Gandoang, Indonesia, being aware of the UV Index is crucial for protecting your skin's health and preventing painful sunburns. Understanding daily UV levels empowers residents and visitors alike to take informed precautions against harmful UV radiation, especially during the peak hours between 10 AM and 2 PM, when indices can soar to a high of 10, indicating a very high risk of harm from unprotected sun exposure. Given Gandoang's tropical climate, which offers abundant sunshine year-round, keeping an eye on the UV Index is essential for enjoying the outdoors safely while minimizing the risks of skin damage and long-term health issues.
The UV Index paints a vivid picture of a sun-drenched day, starting with a mild 1 at 07:00 and rapidly escalating to its peak. As the sun climbs higher, 08:00 sees it at 3, but by 09:00, it spikes to a brisk 6. The heat really intensifies around 10:00, where it hits 9, and reaches its zenith with a 10 at both 11:00 and 12:00. After this peak, a gradual decline begins; by 13:00, it's at 9, then falls to 6 by 14:00. The afternoon cools off with values of 3 at 15:00 and then plummets back to 1 at 16:00 and 17:00. As the sun sets, the UV Index drops to 0 by 18:00, marking the end of a fascinating solar journey for the day. Be sure to enjoy the sunshine, but don’t forget your sunscreen 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 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 6 | high | 25 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 |
Throughout the year, UV Index values remain notably high, particularly from January to October. The UV Index peaks in March at 16, marking it as a critical time for sun exposure, categorized as extreme with a burn time of just 10 minutes. April, September, and November also maintain high levels at 14 to 15, while May experiences a slight dip to 12. The months of January, February, July, August, and October consistently show extreme levels, urging visitors and residents to exercise caution when outdoors. Particularly during these high-risk months, it's vital to adopt protective measures such as wearing hats, sunglasses, and sunscreen, and seeking shade to help mitigate the effects of intense UV radiation. As a general guideline, individuals should remain vigilant, especially during midday hours, to avoid skin damage and health risks associated with high UV exposure.
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 |
| Gandoang | 14 | 15 | 16 | 14 | 12 | 10 | 11 | 13 | 14 | 15 | 15 | 14 |
| Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |