Last updated: May 3, 2025
In Fos-sur-Mer, France, being aware of the UV Index is crucial for protecting your skin from harmful ultraviolet radiation. Understanding the UV levels can significantly aid in the prevention of sunburn and the long-term health of your skin, especially during the sunniest hours of the day. This coastal town, characterized by a Mediterranean climate (Csa), experiences varying UV exposure risks throughout the day, peaking with a notable index of 9 between 1 PM and 2 PM. Staying informed about the UV Index helps residents and visitors alike enjoy the beautiful sunshine safely while minimizing the risks associated with overexposure.
As the sun rises, the UV Index begins its steady climb, starting from a mild 1 at 07:00 and remaining low throughout the morning. By 09:00, it reaches 2, but the real action begins around 10:00 when it surges to 4. The peak of the day occurs between 12:00 and 14:00, with an impressive high of 9, indicating a potent sun that demands attention and protection. As the afternoon wanes, the index gradually drops—first to 8 at 15:00, then gently declining to 6 by 16:00. The evening sun softens its glare, with the index falling to 2 at 18:00 and finally settling back to 1 by 19:00. It’s a day to embrace the sun wisely, with the highest intensity reminding us to stay protected during 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 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal changes, with the highest levels occurring from April to August. During this peak period, particularly in May and June, the UV Index reaches 10 and 9, categorized as very high, indicating a burn time of only 15 minutes. Visitors and residents should pay special attention to April through August as these months represent the highest risk for UV exposure. In contrast, January, December, and November show much lower UV levels, categorized as low or moderate, allowing for longer exposure times of 30 to 45 minutes without significant risk. It is advisable for individuals to seek shade, wear protective clothing, and apply sunscreen, particularly during the high-risk months from April to August, to minimize the chance 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 |
| Fos-sur-Mer | 2 | 4 | 5 | 7 | 9 | 10 | 9 | 9 | 7 | 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 |