Last updated: May 3, 2025
Understanding the UV Index in Cerisy-la-Foret, France, is crucial for protecting skin health and preventing sunburn. With a climate characterized by cool summers and moderate UV levels, residents and visitors alike should be aware of daily UV fluctuations. For instance, during the peak hours between 11:00 AM and 3:00 PM, UV Index readings climb to a notable 7, indicating a high risk of harm from unprotected sun exposure. By staying informed about the UV levels, you can better safeguard your skin and enjoy the beautiful outdoors in Cerisy-la-Foret responsibly.
As the sun rises, the UV Index begins its gentle ascent, starting at a mild 1 at 07:00 and remaining low for the next few hours. By 09:00, it climbs to 2, encouraging early risers to enjoy the outdoors. As the clock strikes 10:00, the index reaches 3, signaling a moderate increase in UV exposure. The peak hour arrives at 12:00, where the index soars to 6, and it continues to hold a robust 7 from 13:00 to 15:00. This peak signifies the highest risk of harm from unprotected sun exposure, especially for those who are outside. As the day winds down, the UV intensity gradually diminishes, dropping to 4 by 17:00, and easing to a gentle 2 by 19:00. For safety, it’s crucial to protect your skin during the midday sun when the UV Index reaches its maximum.
| 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 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons change, so too does the UV Index, which plays a crucial role in understanding sun exposure risks. The highest risk months for UV exposure occur from April to August, particularly peaking in June with a UV Index of 9, categorized as very high, allowing for a burn time of just 15 minutes. Visitors and residents should be especially vigilant during these months, adopting protective measures such as wearing sunscreen, hats, and sunglasses, and seeking shade during peak hours. The UV Index drops significantly in January, November, and December, with low exposure categories, easing sun protection needs during these winter months. However, it’s important to remain aware and prepared for UV fluctuations throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cerisy-la-Foret | 2 | 3 | 4 | 6 | 7 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| 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 |