Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Natal, Indonesia, a beautiful coastal town known for its tropical climate and abundant sunshine. With typical UV levels peaking throughout the day, especially around noon, being aware of the UV Index can significantly aid in sunburn prevention and overall skin health. As UV exposure can pose serious risks, such as skin damage and increased cancer risk, it's essential to stay informed about local UV levels—particularly when the index reaches highs of 12 in the late morning to early afternoon. By staying vigilant, you can enjoy the radiant sun safely while protecting your skin from harmful rays.
The UV Index for the day shows a dramatic shift as the sun climbs higher, reaching its peak at noon with a value of 12, indicating a very high level of UV radiation. The sun's intensity begins to ramp up sharply from 8:00 AM, where it starts at a mild 2, climbing to a notable 11 by 11:00 AM. By 1:00 PM, the UV Index remains steady at 12, reminding everyone to take necessary precautions. As the afternoon progresses, the index gradually declines, with values dropping to 6 by 3:00 PM, and tapering off to 1 by 5:00 PM. By 7:00 PM, the rating falls to a mere 0, signaling a safe return outdoors as daylight fades. Remember to shield yourself during those peak hours!
| 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 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index shows extreme levels throughout the year, with January to April recording the highest values at 15-16, indicating a very high risk of harm from unprotected sun exposure, and a burn time as short as 10 minutes. March is the peak month, reaching 16. May and August see a slight reduction to 14, while June and July dip to 12, before climbing back to 15 in September. For October and November, the index remains at 14, with a slight decrease to 13 in December. Given these high UV levels, it is crucial for residents and visitors to take protective measures, such as wearing broad-spectrum sunscreen, protective clothing, and seeking shade, especially during peak sun hours. Remember, protection is necessary year-round, but especially crucial from January to April and September to November when UV exposure is particularly high.
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 |
| Natal | 15 | 15 | 16 | 16 | 14 | 12 | 12 | 14 | 15 | 14 | 14 | 13 |