Last updated: August 1, 2025
In Miyake, Japan, awareness of the UV Index is crucial for safeguarding your skin health against harmful ultraviolet radiation. Understanding UV levels helps you take preventative measures against sunburns and long-term skin damage, especially during the peak sun hours when the index reaches a maximum of 12 between 11:00 AM and 1:00 PM. With Miyake's Cfa climate, marked by warm summers and moderate UV exposure risks, being informed about daily UV levels allows residents and visitors alike to enjoy outdoor activities while minimizing skin health risks. Stay safe under the sun by keeping an eye on the UV Index!
The UV Index displays a dramatic rise and fall throughout the day, peaking at 12 between 11:00 AM and 12:00 PM. Starting low at 2 at 7:00 AM, it gradually escalates to reach 10 by 10:00 AM, indicating a moderate to high level of UV radiation. As the sun climbs higher, the intensity peaks at 12, urging sun protection measures for outdoor enthusiasts. After this zenith, UV levels start to decline, returning to 8 at 2:00 PM, before further dropping to 6 at 3:00 PM. From 4:00 PM onwards, the index takes a swift nosedive, landing at 1 by 5:00 PM and hitting 0 by 7:00 PM, signaling a safe end to the sun's harsh rays.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 min |
13:00 | 10 | very high | 15 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | moderate | 30 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 |
Throughout the year, UV exposure varies significantly, highlighting the need for awareness among visitors and residents. High-risk months for UV exposure fall between March and August, where the UV Index reaches very high to extreme levels, particularly in May and July when it peaks at 12. The burn time during these months can be as little as 10 minutes, stressing the importance of protective measures like sunscreen and clothing. In contrast, January and December present a relatively lower risk, with a moderate UV Index of 4 and a burn time of 30 minutes. Therefore, as summer approaches, it is essential to remain vigilant against UV exposure and take necessary precautions, while also being aware of the seasonal decrease in UV risk during the winter months.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Sapporo UVI | 2 | 3 | 6 | 7 | 9 | 9 | 9 | 10 | 8 | 5 | 3 | 2 |
Yokohama UVI | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 4 |
Tokyo UVI | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 4 |
Nagoya UVI | 4 | 6 | 8 | 10 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 3 |
Osaka UVI | 4 | 6 | 8 | 11 | 11 | 11 | 12 | 11 | 10 | 7 | 5 | 3 |
Miyake | 4 | 6 | 8 | 10 | 11 | 11 | 12 | 11 | 10 | 7 | 6 | 4 |