Last updated: May 3, 2025
In Shimo-furano, Japan, awareness of the UV Index is essential for protecting your skin from harmful radiation. Understanding UV levels can help you prevent sunburn and maintain long-term skin health, particularly in a region like Shimo-furano, where varying outdoor activities take place. With a Dfb climate characterized by distinct seasonal changes, UV exposure can significantly spike, especially during peak hours when values reach 9 around noon. Stay informed and take protective measures to enjoy the beautiful outdoors while safeguarding your skin!
The UV Index rises steadily throughout the morning, peaking at 9 between 11:00 and 12:00, indicating a high level of solar radiation and necessitating precautionary measures for sun exposure. As the sun begins to lower, the index gradually declines, dropping to 7 at 1:00 PM before tapering off to 4 by 3:00 PM. Later in the afternoon, the UVI falls further to 2 at 4:00 PM, and finally stabilizes at 1 from 5:00 PM onwards, ensuring a safe environment as daylight fades. Overall, it's a day where sunscreen and protective clothing are essential during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 5 | 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 | 7 | high | 25 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, the UV Index experiences significant fluctuations, reflecting shifts in seasonal sun exposure. January and December see low UV levels (Index 2), with burn times of 45 minutes, indicating minimal risk. As spring approaches, February (Index 3) and March (Index 6) signal moderate to high exposure risk, shortening burn times to 30 and 25 minutes respectively. The risk escalates dramatically in May through August, where UV Index values peak at 10, categorizing the exposure as very high, and reducing safe burn time to just 15 minutes. September remains high at 8, marking it as a continuation of the peak summer risk, after which the index drops to 6 in October and returns to moderate in November. For both residents and visitors, it is crucial to take precautions during the high-risk months of March to September, utilizing sunscreen, wearing protective clothing, and seeking shade, especially when the UV Index is significant.
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 |
| Shimo-furano | 2 | 3 | 6 | 7 | 9 | 10 | 10 | 10 | 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 |