Last updated: May 3, 2025
In Tobetsu, Japan, being aware of the UV Index is essential for safeguarding your skin and overall health. Understanding UV levels can help prevent painful sunburns and reduce the risk of long-term skin conditions, making it crucial for everyone, especially during the summer months when exposure peaks. With a Dfb climate, Tobetsu experiences varying UV intensities throughout the day, reaching a maximum of 8 between 10:00 AM and 12:00 PM. As you enjoy outdoor activities in this beautiful region, staying informed about the UV Index will empower you to protect your skin effectively and enjoy the sun responsibly.
The UV Index presents a compelling picture of solar intensity throughout the day. Early risers will notice a gentle start, with maximum values of 3 at 07:00. As the sun climbs higher, the index peaks at 8 between 10:00 and 12:00, indicating strong sun exposure. This is the best time to take precautions, such as applying sunscreen and wearing protective clothing. The intensity then gradually declines, dropping to 6 by 14:00 and tapering off further to 1 by 17:00. By evening, the UV Index hits 0 at 19:00, offering a safe reprieve as the day winds down. Remember, planning your outdoor activities around these insights can ensure you enjoy the sun while staying safe!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | 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 |
The UV Index shows a clear seasonal variation, with high-risk months from March to September, where values peak at 10 in August. January and December experience low exposure with a UV Index of 2, while February and November have moderate exposure with an index of 3. During April and May, the UV Index rises significantly, reaching very high levels of 8 and 9, meaning a burn time of just 15 minutes is recommended during peak intensity months. Visitors and residents should take precautions from March through September, especially midday, to protect their skin, including wearing sunscreen, protective clothing, and seeking shade. As UV levels drop in the fall and winter, there is less risk, but some protection is still advisable in February and October.
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 |
| Tobetsu | 2 | 3 | 6 | 7 | 8 | 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 |