Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Misawa, Japan, where the combination of a Cfb climate and varying sun exposure can significantly impact skin health. With UV levels peaking at an intensity of 10 during midday, awareness of these UV readings is vital for sunburn prevention and long-term skin care. In Misawa, understanding local UV exposure risks helps everyone enjoy outdoor activities safely while minimizing health concerns. Remember, the sun can be deceptively strong, especially during peak hours between 10 AM and 1 PM—so stay informed and protected!
The UV Index today began its ascent at 7:00 AM with a moderate reading of 3, steadily climbing to reach a peak of 10 by 11:00 AM and 12:00 PM. During the sun's most intense hours, between 10:00 AM and 1:00 PM, exposure risks soared, making sunscreen essential. As the afternoon progressed, the index started to decline, dropping to 4 by 3:00 PM and tapering off further to 1 by 5:00 PM. By 7:00 PM, the UVI settled at a safe 0, signaling the end of the hazardous daylight hours. Enjoy the sun, but be mindful of its power throughout the day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 5 | 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 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 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 |
During the year, the UV Index exhibits significant seasonal fluctuations, with the highest levels occurring in summer months. From April to August, the UV Index reaches very high to extreme levels, peaking at 11 in August, where the recommended burn time is as little as 10 minutes. The high-risk months for UV exposure are April through August, necessitating extra precautions for both visitors and residents. To protect against harmful effects, individuals should wear protective clothing, apply sunscreen generously, and seek shade during peak sun hours. In contrast, January and December present lower UV indices, categorizing exposure as low, with longer burn times of up to 45 minutes. Staying informed about these changes can help ensure safe time spent outdoors throughout the year.
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 |
| Misawa | 2 | 3 | 5 | 8 | 9 | 10 | 10 | 11 | 8 | 6 | 4 | 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 |