Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Sarae, Indonesia, where the tropical Aw climate results in higher sun exposure year-round. Being aware of UV levels can significantly impact your skin health by helping prevent sunburn and long-term damage, especially during peak hours when the index can soar to 12. With UV radiation peaking around noon, knowing when to seek shade or apply sunscreen is essential to protecting yourself against potential hazards while enjoying the beautiful sunny days that Sarae offers. Stay informed, stay safe, and embrace the sun wisely!
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 |
Throughout the year, UV Index levels remain consistently high, indicating extreme exposure risk. From January to April, the UV Index peaks at 16, presenting a significant risk of skin burns with a burn time of just 10 minutes. Although there is a slight decrease in the index during the summer months, May through July, the values still warrant caution, particularly in August and September when the index rises back to 16. Visitors and residents should be particularly vigilant during the high-risk months of February, March, September, and October, when the UV Index remains at its most dangerous levels. To mitigate risks, we strongly advise wearing protective clothing, using high-SPF sunscreen, and seeking shade whenever possible, especially during midday hours. This proactive approach is essential in safeguarding against the harmful effects of prolonged sun 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 |
| Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |
| Sarae | 15 | 16 | 16 | 15 | 12 | 11 | 12 | 14 | 16 | 15 | 15 | 14 |