Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Risoul, France, where the stunning climate can also bring considerable sun exposure. With UV levels peaking at 11 during mid-afternoon hours, it’s vital to monitor these readings to prevent sunburn and protect your skin health. This alpine resort, characterized by its Dfc climate, may seem mild, but the combination of altitude and sunny days creates higher UV risks. By staying informed about the UV Index, you can enjoy the beautiful outdoors while safeguarding your well-being.
As the sun rises, so does the UV Index, beginning modestly at 1 at 07:00. By 08:00, it climbs to 2, but it's by 10:00 that it really picks up pace, reaching a notable 6. The peak occurs between 12:00 and 14:00, where the index hits a sizzling 10 and 11, signaling intense sun exposure. As the afternoon wears on, we see a slight decline: 15:00 drops to 10, followed by a decrease to 7 by 16:00, and then it gently tapers off to 5 at 17:00. The evening brings some relief, with the index falling to 3 by 18:00 and wrapping up the day at 2 by 19:00. It’s a reminder to stay protected during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, the UV Index exhibits notable seasonal variations, with significant peaks during the warmer months. The high-risk months for UV exposure are primarily from April to September, where the index reaches very high to extreme levels, particularly in June with a peak index of 11. During these months, burn times are significantly reduced, ranging from 10 to 15 minutes. Visitors and residents are advised to take extra precautions during this period by seeking shade, wearing protective clothing, and applying sunscreen regularly. January, February, and November present moderate exposure, allowing for longer burn times of up to 30 minutes, while December offers the lowest risk with a low UV index and a burn time of 45 minutes. Awareness of these changes is crucial for minimizing the risk of UV exposure and ensuring safe outdoor activities throughout the year.
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 |
| 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 |
| Risoul | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 8 | 6 | 3 | 2 |