Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Sarirejo Satu, Indonesia, where the tropical climate brings both sunshine and potential skin risks. With UV levels peaking at 11 during midday, awareness of these fluctuations is vital in preventing sunburn and maintaining skin health. By knowing when to seek shade or apply sunscreen, you can effectively protect yourself from harmful rays that are particularly intense in this region. Whether enjoying outdoor activities or simply soaking up the sun, staying informed about your UV exposure is essential for a safe and enjoyable experience in this vibrant locale.
The UV Index throughout the day presents a clear narrative of the sun's intensity. Starting at a gentle 1 at 07:00, the day quickly warms up, reaching 4 by 08:00. As the clock strikes 09:00, it escalates to 7, and by 10:00, it peaks at an intense 10. The intensity continues to surge, hitting a maximum of 11 from 11:00 to 12:00—a reminder to apply that sunscreen! Gradually, the index begins to decline, dropping to 9 at 13:00, and then diminishing to 6 by 14:00. From there, the UV levels swiftly taper off, resting at 3 by 15:00, and further declining to 1 by 16:00 and through 17:00. Finally, as the sun sets, the index cools off to 0 by 18:00, offering a soothing end to the day under the diminishing rays of light.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 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 exposure remains a significant concern, particularly from January to November, where the UV Index consistently ranks as extreme (14-15) or very high (10-12). The highest risk months, identified by an extreme UV index of 15, occur in February, March, September, October, and November, alongside consistently high values in the other months. Notably, the burn time is minimal, ranging from just 10 minutes in most months to 15 minutes in June. Visitors and residents are strongly advised to prioritize sun safety, utilizing SPF protection, wearing protective clothing, and limiting sun exposure during peak hours to prevent 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 |
Sarirejo Satu | 14 | 15 | 15 | 14 | 12 | 10 | 11 | 13 | 15 | 15 | 15 | 14 |
Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |