Last updated: January 18, 2026
Understanding the UV Index is crucial for residents and visitors of Sungaisarik, Indonesia. With its tropical climate classified as Af, the region experiences heightened UV levels that can pose significant risks to skin health, especially during peak hours. As UV rays can cause sunburn and contribute to long-term skin damage, being aware of the UV index allows you to take necessary precautions. From a maximum UV reading of 13 at midday, itโs vital to stay informed about daily UV levels to protect yourself and enjoy the beautiful sun-soaked days that Sungaisarik has to offer.
As the sun rises, the UV Index begins its climb, starting at a mild 1 by 7:00 AM. By 9:00 AM, it reaches a moderate 5, but itโs from 10:00 AM to 1:00 PM that the UV rays pack a punch, peaking at a staggering 13 at 12:00 PM. This intense exposure persists slightly into the afternoon, with levels at 12 and 10 from 1:00 to 2:00 PM before gradually tapering off. By 3:00 PM, the UV Index drops to a safer 7, then continues to decline throughout the evening, falling back to 1 by 5:00 PM and reaching zero by 7:00 PM. Remember, during peak hours, itโs crucial to protect your skin from those harmful rays! ๐
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 60+ minutes |
| 08:00 | 2 | low | 60+ minutes |
| 09:00 | 5 | moderate | 30โ60 min |
| 10:00 | 9 | very high | 10โ15 min |
| 11:00 | 13 | extreme | <10 minutes |
| 12:00 | 15 | extreme | <10 minutes |
| 13:00 | 15 | extreme | <10 minutes |
| 14:00 | 12 | extreme | <10 minutes |
| 15:00 | 8 | very high | 10โ15 min |
| 16:00 | 4 | moderate | 30โ60 min |
| 17:00 | 2 | low | 60+ minutes |
| 18:00 | 1 | low | 60+ minutes |
| 19:00 | 0 | low | 60+ minutes |
The UV Index remains consistently high throughout the year, with the most extreme readings occurring from January to May and September to November, where values range from 15 to 16 and the burn time is merely 10 minutes. February, March, and April stand out as particularly high-risk months, all maintaining a UV Index of 16. During these months, and indeed throughout most of the year, it is essential for visitors and residents to take preventive measures against UV exposure, such as wearing sunscreen, protective clothing, and sunglasses. Always seek shade when outdoors, especially during peak sun hours, to minimize the risk of 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 |
| Sungaisarik | 15 | 16 | 16 | 16 | 15 | 12 | 13 | 14 | 15 | 15 | 14 | 14 |