Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Villiers-le-Sec, France, where sunny days can easily lead to increased risks of skin damage. With a typical Cfb climate, the region experiences varying UV levels throughout the day; during peak hours, it can soar to levels 9 and 8, indicating a high potential for sunburn and other skin health issues. Being aware of these UV levels not only helps in taking necessary precautions but also promotes overall skin care. By checking the UV Index daily, you can enjoy the sun safely while protecting your skin from harmful effects.
As the sun rises, the UV Index creeps up from a mild 1 at 07:00 and 08:00, indicating a low risk for skin damage. By 09:00, it bumps up to 2, still manageable, but the midday sun packs a punch! At 10:00, the index reaches 4, and by 11:00, it skyrockets to 6, signaling that it's time to find some shade. The peak occurs at 12:00, with an impressive 8, and the intensity remains high at 13:00 and 14:00, both hitting 9. As the afternoon transitions, the numbers gradually decline; by 15:00, it decreases to 8, then 6 at 16:00, and continues to slip to 5 by 17:00. As we head into the evening, the UV Index settles back to a gentle 3 at 18:00, and finally winds down to 2 by 19:00, marking the end of a sun-soaked day. Remember to protect your skin during those peak hours!
| 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 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | 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 demonstrates notable seasonal variations that affect exposure risk. January and February have relatively low to moderate UV levels (Index 2-3), with safe burn times of 45 and 30 minutes respectively. As spring approaches, March sees a rise to an index of 5, and by April, it reaches 6, marking the beginning of high-risk months. The most critical period arrives in May and June, where the UV Index peaks at 8-9, indicating very high exposure risk and a reduced burn time of just 15 minutes. July and August maintain this peak, before tapering off in September with a return to a high risk (UV Index 6). October brings a moderate reduction (Index 4), while winter months November and December drop back to low levels. Visitors and residents should be particularly vigilant during May through September, using sunscreen and protective clothing to minimize harmful effects during these high-risk months.
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 |
| Villiers-le-Sec | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 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 |