Last updated: July 2, 2025
Understanding the UV Index is essential for residents and visitors in Rumbia, Indonesia, where the warm, tropical climate significantly influences daily sun exposure. Being aware of the UV levels can help you protect your skin from harmful effects like sunburn and long-term health issues. With maximum UV readings reaching 12 around midday, it's crucial to take precautions during peak hours to maintain skin health and enjoy the beautiful sunny days safely. Rumbia's consistent exposure to strong UV radiation underscores the importance of staying informed about the UV Index for a healthier and more enjoyable outdoor experience.
At dawn, the UV Index starts low at 1 around 7 AM, gradually rising to 3 by 8 AM. However, from 9 AM, it begins to climb steeply, reaching a peak of 12 at noon, indicating a time for caution and sun protection. The intensity begins to wane in the afternoon, dropping to 8 at 2 PM, and further declining to 5 by 3 PM. As the day winds down, the UV Index lowers significantly to 2 at 4 PM, then 1 at 5 PM, finally fading to 0 after 6 PM. This fluctuation illustrates a clear pattern of midday sun strength, encouraging outdoor enthusiasts to stay vigilant 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 | 11 | extreme | 10 min |
12:00 | 12 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | 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 |
Throughout the year, the UV Index indicates a consistent risk of extreme sun exposure, particularly from January to September, when values frequently range from 15 to 16. High-risk months include January through April and September, where the UV Index peaks at 16, indicating a very short burn time of just 10 minutes. While the index slightly decreases from May to July, it remains in the extreme category, with values between 11 and 13. As fall and winter approach, the UV Index gradually lowers but still maintains a significant level up to December. Visitors and residents should take precautions by applying sunscreen, wearing protective clothing, and limiting direct sun exposure during these high-risk periods to avoid skin damage.
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 |
Rumbia | 15 | 16 | 16 | 15 | 13 | 11 | 12 | 14 | 15 | 15 | 14 | 14 |