Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Fontaine-les-Vervins, France, where the climate's temperate nature can still conceal significant sun exposure risks. Awareness of UV levels not only helps in preventing painful sunburns, but also plays a vital role in promoting long-term skin health. As the UV Index peaks during midday hours—reaching 8 between 13:00 and 15:00—it's essential to take protective measures to safeguard your skin from harmful effects, even in a seemingly mild climate like that of Fontaine-les-Vervins. Stay informed and enjoy the sunshine responsibly!
At dawn, the UV Index starts off low, peaking at 1 by 8:00 AM, indicating minimal sun exposure risk. As the morning progresses, the index gradually climbs, reaching 4 by 10:00 AM. The midday sun kicks in, and from 12:00 PM to 3:00 PM, the UV Index surges to its peak of 8, emphasizing the need for sun protection. As the afternoon wanes, the index begins to drop, settling back to 4 by 5:00 PM and tapering off to 2 by 7:00 PM. It's a reminder of how the intensity of UV rays fluctuates throughout the day, urging us to stay vigilant under the sun!
| 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 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 8 | very high | 15 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 do UV levels, significantly impacting safety for visitors and residents. January has a low UV Index of 2, with a burn time of 45 minutes, while February and March see a moderate increase to 3 and 4, respectively, indicating a burn time of 30 minutes. Moving into April, the UV Index rises to 6 (high), compressing burn time to 25 minutes. The high-risk months of May through August present a very high UV Index of 8, where skin can burn in as little as 15 minutes. A moderate drop occurs in September (UV Index 6), followed by October with a UV Index of 4 before returning to low levels in November and December. Visitors and residents are strongly advised to take protective measures during May to August, such as wearing sunscreen, long sleeves, and sunglasses, as exposure during these months can pose serious risks to skin health.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fontaine-les-Vervins | 2 | 3 | 4 | 6 | 8 | 8 | 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 |