Last updated: May 3, 2025
Awareness of the UV Index in Shikabe, Japan is crucial for maintaining skin health and preventing sunburn, particularly in a region where the climate often sees significant sun exposure. Understanding UV levels helps residents and visitors alike to make informed decisions about sunscreen use and protective clothing. In Shikabe, which typically falls under the Dfb climate zone, UV exposure can peak dramatically around midday, with indices reaching as high as 9. By keeping an eye on the UV Index, you can enjoy the beautiful sunny days in Shikabe while protecting your skin from harmful UV radiation.
As the sun rises, the UV Index begins its ascent, peaking at 11:00 AM and 12:00 PM with a blistering 9. The day starts gently, with 07:00 AM registering a modest 2, but by 09:00 AM, it climbs to a moderate 6. The intensity escalates, hitting 8 at 10:00 AM and reaching its zenith shortly after noon. After this peak, the index gradually dips, easing down to 6 by 2:00 PM, before falling further to 4 at 3:00 PM. As evening approaches, the UV radiation wanes significantly, dropping to 2 by 4:00 PM and near zero after sunset, signaling a shift in the skies. Remember to protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV radiation levels change significantly, affecting the risk of sunburn for visitors and residents. The highest UV Index occurs during August, with an extreme rating of 11, resulting in a rapid burn time of just 10 minutes. From April to September, UV exposure is particularly hazardous, with several months categorized as very high to extreme. Notable high-risk months include April (UV Index 8), May (UV Index 9), and June and July (UV Index 10), all requiring vigilant sun protection measures. Residents and visitors are advised to limit sun exposure, especially during peak hours, seek shade, and wear protective clothing and sunscreen to safeguard against harmful UV rays. As the year progresses into fall and winter, the UV Index decreases, offering more manageable levels of exposure, but caution is still advised during the transitional months of October (UV Index 6) and November (UV Index 3).
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 |
| Shikabe | 2 | 4 | 5 | 8 | 9 | 10 | 10 | 11 | 8 | 6 | 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 |