Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Vallouise, France, particularly in a region known for its stunning mountainous landscapes and vibrant outdoor activities. As UV levels can soar during peak hours, knowing how to gauge these levels can be the difference between a fun day in the sun and painful sunburn or long-term skin damage. With a Dfc climate, Vallouise experiences moderate to high UV exposure, especially around midday when indices can reach a staggering 10. Stay sun-smart by tracking the UV Index to protect your skin while enjoying the beautiful outdoors!
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 |
The seasonal changes in UV index reveal a significant increase in solar radiation from late winter into summer. January and February see moderate UV exposure with indices of 3 and 5, respectively, where burn time is 30 minutes. However, as we enter March through June, the UV index escalates dramatically, reaching a peak of 11 in June, classified as extreme, with burn times dropping to just 10 minutes. July and August maintain a very high level of UV exposure at 10, while September sees a slight decrease to 8. October marks a return to high exposure with a UV index of 6, while November and December return to moderate and low levels, suggesting burn times lengthen to 30 and 45 minutes, respectively. Visitors and residents are advised to exercise caution during high-risk months from March to September, particularly at noon when the sun's rays are the strongest. Regular use of sunscreen, protective clothing, and avoidance of prolonged sun exposure are essential during these peak times to minimize the risk of skin damage.
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 |
| Vallouise | 3 | 5 | 8 | 9 | 10 | 11 | 10 | 10 | 8 | 6 | 3 | 2 |