Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Sei Rampah, Indonesia, given the region's tropical climate and consistent sun exposure. As UV levels soar, peaking with a hazardous score of 12 during midday, awareness becomes key in preventing sunburn and safeguarding your long-term skin health. With the UV Index fluctuating throughout the day, it is essential to take protective measures, especially during the hours when the sun is at its strongest, typically between 10 AM and 3 PM. Stay informed and stay safe as you enjoy the beautiful outdoors of Sei Rampah!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it climbs to 2, signaling the need for a little extra sun protection. The intensity ramps up notably by 9:00 AM, reaching 4, but the real surge occurs at 10:00 AM when it hits 8, marking the beginning of peak UV exposure. The highest reading of the day occurs at noon, soaring to 12—a crucial time for sun safety. The index remains steadfast at 12 until 1:00 PM, then gradually declines, settling at 10 by 2:00 PM. As the afternoon fades, the UV levels wane, dropping to 4 by 4:00 PM, before fading further to 1 at 5:00 PM, and finally to 0 by 7:00 PM. This highlights a clear reminder to stay vigilant during those peak hours when the sun's rays are at their most potent.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits remarkably high levels throughout the year, with particularly extreme values from January to April, where the index peaks at 15. The high-risk months for UV exposure are consequently January, February, March, and April, all maintaining the same burn time of just 10 minutes. As summer approaches, the index slightly decreases, yet it remains in the extreme exposure category. Notably, visitors and residents should exercise caution during these months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade to minimize the risk of harmful UV exposure. Staying vigilant is crucial, as even on less intense days, the potential for skin damage remains significant.
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 |
| Sei Rampah | 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 |