Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Viry, France, where the weather can bring both warmth and unexpected sun exposure. Monitoring UV levels helps in preventing sunburn and maintaining skin health, especially during peak hours when the index reaches its maximum of 10, posing a significant risk. With Viry’s Cfb climate, characterized by mild temperatures and potential for high UV radiation, awareness of these levels is essential for safe outdoor activities and overall well-being. Stay informed and protect your skin!
Between the hours of 7:00 AM and 8:00 AM, the UV Index remains low at 1, making it a gentle start to the day. As the sun climbs higher, the intensity begins to rise, reaching 3 by 9:00 AM. The sun hits its peak around 1:00 PM and 2:00 PM, with a high UV Index of 10, indicating a risk of harm from unprotected sun exposure. After this peak, the index gradually decreases, dipping to 5 by 5:00 PM and further down to 1 by 7:00 PM, signaling a retreat from the sun's rays. Stay vigilant and protect your skin during those midday hours when the UV levels are at their highest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in the UV Index highlight significant variations in sun exposure risk. From January to March, the UV Index gradually increases from a low level (2) in January to a moderate level (5) in March, with burn times decreasing from 45 minutes to 30 minutes. In April, the UV Index escalates to high (6), indicating a need for greater sun protection as burn time drops to 25 minutes. May through August presents the highest risk, with UV Index readings reaching very high (8-10) and burn times falling to a mere 15 minutes. September sees a decline to high (6), while October to December returns to moderate (3) and low (2) levels, allowing for longer exposure times of 30-45 minutes. Visitors and residents should take particular care during the high-risk months of May through August, ensuring to apply sunscreen and seek shade during peak hours to protect against harmful UV rays.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Paris UVI | 2 | 3 | 5 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Viry | 2 | 3 | 5 | 6 | 8 | 10 | 9 | 8 | 6 | 4 | 3 | 2 |
| Lyon UVI | 2 | 3 | 5 | 6 | 8 | 10 | 9 | 8 | 6 | 5 | 3 | 2 |
| Nice UVI | 2 | 4 | 6 | 7 | 8 | 10 | 9 | 8 | 7 | 5 | 3 | 2 |
| Marseille UVI | 2 | 4 | 5 | 7 | 9 | 10 | 9 | 8 | 7 | 5 | 3 | 2 |
| Toulouse UVI | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |