Last updated: July 2, 2025
Awareness of the UV Index is crucial for residents and visitors of Montrevault, France, especially with the region's climate classified as Cfb, which features mild summers and overcast winters. Understanding UV levels helps in taking proactive measures against harmful sun exposure, crucial for preventing sunburn and maintaining skin health. Typically, Montrevault experiences significant UV exposure, with peak levels reaching as high as 9 in the afternoon. By staying informed about the UV Index, you can enjoy the beautiful outdoors while protecting your skin from potential damage.
The UV Index shows a noteworthy progression throughout the day, starting gently with a maximum of 1 at 07:00 and 08:00. As the sun climbs higher, the index rises sharply, reaching 2 by 09:00. The peak intensity occurs between 12:00 and 15:00, with readings of 7 at noon and spiking to a scorching 9 by 14:00. This potent UV exposure continues at the same level until 15:00, before gradually tapering off in the late afternoon, decreasing to 5 by 17:00 and closing the day with a softer 2 by 19:00. It's essential to stay protected during the peak hours when the UV rays are at their strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 9 | 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 radiation levels fluctuate significantly, with distinct high-risk months emerging in the summer. From May to August, the UV Index is categorized as very high (ranging from 8 to 9), indicating that visitors and residents should exercise heightened caution, as the burn time decreases to just 15 minutes. April sees a transition to a high exposure category, while March starts in a moderate range. Conversely, the winter months, including January, November, and December, have a low UV Index (2), granting longer burn times of 45 minutes. To safeguard against skin damage, it's imperative for everyone to wear protective clothing, seek shade, and apply sunscreen during peak UV times, especially from late spring to the end of summer.
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 |
| Montrevault | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 5 | 2 | 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 |