Last updated: June 2, 2025
Understanding the UV Index in Saint-Laurent, France, is essential for protecting your skin from harmful ultraviolet rays. With the unique Cfb climate, residents and visitors should be aware that UV levels can peak sharply, particularly during midday when they reach a level of 9—indicating a very high risk of harm from unprotected sun exposure. By familiarizing yourself with the UV Index, you can take proactive steps to prevent sunburn and safeguard your long-term skin health. Staying informed about the daily UV levels will empower you to enjoy the beautiful sun while minimizing the risks associated with overexposure.
The UV Index data for the day reveals a dynamic and intense sun exposure. Starting off with a maximum of 1 at 7:00 AM and 8:00 AM, it quickly rises to 2 by 9:00 AM. The sun reaches its peak intensity from 12:00 PM to 3:00 PM, hitting a scorching 9 during the hottest hours. As the afternoon wanes, the UV index gradually declines to 7 by 4:00 PM, then further to 5 at 5:00 PM, and eventually settling at a more manageable 2 by 7:00 PM. To stay safe and protect your skin, it's crucial to seek shade and apply sunscreen, especially during those midday hours when the UV Index is at its highest!
| 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 | 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 levels fluctuate significantly, influencing both safety and health for visitors and residents. The highest UV Index readings occur from May to July, with values reaching up to 10 in July, categorizing these months as very high risk for sunburn, with a burn time of just 15 minutes. Conversely, the lowest levels are in January and December, where the UV Index is only 2, allowing for a burn time of 45 minutes. Visitors and residents are advised to take precautions, especially from April through August when the risk is most pronounced; applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak hours can help minimize skin damage. As autumn sets in, UV levels begin to moderate, but attention should still be paid in September when the index remains high at 6.
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 |
| Saint-Laurent | 2 | 3 | 5 | 7 | 8 | 9 | 10 | 9 | 6 | 4 | 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 |