Last updated: July 2, 2025
Understanding the UV Index is crucial for anyone visiting or residing in Les Deux Alpes, France, a stunning alpine destination known for its breathtaking landscapes and year-round outdoor activities. With UV levels peaking at a risk index of 10 during midday hours, awareness of these numbers is vital to prevent sunburn and protect your skin health. The region's Cfc climate brings strong sunlight, particularly in the summer, making it essential to arm yourself with knowledge about UV exposure risks. Stay informed and enjoy your adventures while keeping your skin safe!
As the sun rises, the UV Index begins its ascent, starting at a modest 1 at 07:00 and gradually climbing throughout the morning. By 10:00, it reaches 5, signaling the time to lather on that sunscreen. The peak arrives between 13:00 and 14:00, hitting a maximum of 10, indicating that protective measures are essential. As the afternoon progresses, the index dips slightly to 9 at 15:00, and continues to decline, reaching 3 by 18:00. By the time the sun sinks, the UV threat diminishes to 2 at 19:00, making it clear that midday sun worshippers should be particularly cautious, while evening strollers can enjoy the waning rays with less concern.
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | 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, UV Index levels fluctuate significantly, with high-risk months primarily from March to October. Starting in March, the UV Index escalates to 7 (high) and peaks in June at 11 (extreme), indicating the need for heightened caution. April and May also present very high levels (9 and 10, respectively), while July through September remain in the very high category, with UV Index values ranging from 8 to 10. As a warning, individuals should pay close attention to their exposure during these months and minimize time spent in direct sunlight, especially during peak hours. It is essential for both residents and visitors to protect their skin by applying sunscreen, wearing protective clothing, and seeking shade whenever possible, particularly between April and September when burn times decrease to as little as 10 to 15 minutes. As the year progresses into November and December, UV levels decrease to moderate and low, allowing for safer outdoor activities.
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 |
| Les Deux Alpes | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 3 | 2 |