Last updated: July 2, 2025
Understanding the UV Index in Togitsu, Japan, is crucial for safeguarding your skin and overall health. The UV Index indicates the strength of ultraviolet radiation from the sun, with higher values posing a greater risk of sunburn and long-term skin damage. In this picturesque region, characterized by a Cfa climate, residents and visitors should be particularly aware of potential UV exposure, especially between 11:00 AM and 1:00 PM, when levels can peak at 12. By keeping an eye on the UV Index, you can take necessary precautions to enjoy the sun safely while protecting your skin from harmful effects.
The UV Index provides a clear snapshot of sun exposure throughout the day, peaking at 12 around noon. Starting the morning at a mild level of 1 at 07:00, the index swiftly climbs, reaching 11 by 11:00. The intensity plateaus at its highest point of 12 between 12:00 and 13:00, indicating a critical time for sun safety. As the afternoon progresses, the UVI declines, dropping to 10 at 14:00, and gradually softening to 4 by 16:00. By the evening hours, the index falls back to a comfortable 1 by 18:00, making later hours more forgiving for outdoor activities. Stay protected and plan your sun exposure wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, indicating varying levels of sun exposure risk. The high-risk months occur from March to September, where the UV Index peaks in May, June, July, and August at an extreme 12, necessitating careful sun safety practices. During these months, the burn time shrinks to just 10 minutes, indicating the urgent need for protective measures such as sunscreen, hats, and seeking shade. In contrast, the winter months of January and December present a moderate UV Index of 4, allowing for a more relaxed approach to sun exposure, with a burn time of 30 minutes. Visitors and residents are strongly advised to stay informed about the UV Index and adjust their outdoor activities accordingly, especially during the peak months to minimize the risk of skin damage.
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 |
| 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 |
| Togitsu | 4 | 6 | 8 | 10 | 11 | 11 | 12 | 12 | 11 | 8 | 6 | 4 |