Last updated: July 2, 2025
Understanding the UV Index in Teshio, Japan, is crucial for protecting your skin year-round. With its Dfb climate, Teshio experiences varying UV exposure levels that can lead to sunburn and long-term skin damage if precautions are not taken. During peak hours, particularly between 11:00 AM and 1:00 PM, UV levels can reach as high as 9, emphasizing the importance of awareness and preventive measures. By staying informed about the UV Index, you empower yourself to enjoy Teshio's beautiful outdoors while safeguarding your skin health.
The UV Index today shows a dynamic journey through the hours, peaking impressively at 9 between 11:00 AM and 12:00 PM, signaling a high level of sun exposure. Starting the day at 3 at 07:00 AM, it steadily climbs to 6 by 09:00 AM and reaches its zenith at 10:00 AM with an 8. As the sun moves across the sky, it maintains a strong presence, remaining at 9 during the late morning before gradually descending to 4 by 03:00 PM. The decline continues into the late afternoon, dropping to 1 by 17:00 PM until sunset. It's essential to take precautions during the peak hours to protect your skin from harmful UV radiation!
| 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 | 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 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, indicating varying levels of sun exposure risk. The months with the highest UV Index values—May through August—are categorized as very high, with an alarming burn time of just 15 minutes, highlighting the critical need for sun protection. April also sees a high risk with a UV Index of 6, while September drops to high but still requires caution with a burn time of 25 minutes. From October to February, the risk significantly diminishes, with January and December marked by a low exposure category. To stay safe, residents and visitors should prioritize sun protection—such as sunscreen, hats, and protective clothing—especially during the high-risk months from April to September.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Teshio | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 1 |
| 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 |