Last updated: August 1, 2025
Understanding the UV Index in Saint-Brandan, France, is vital for maintaining healthy skin and preventing sunburn. With its Cfb climate, characterized by mild summers, residents and visitors should be particularly aware of daily UV levels to protect themselves against harmful sun exposure. The UV Index can soar to 9 during peak hours, especially from noon to 2 PM, underscoring the importance of knowing when to seek shade and wear protective clothing. By staying informed about UV risks, you can enjoy the sunny days in Saint-Brandan while keeping your skin safe and healthy.
As the sun rises, the UV Index begins at a gentle 1 at 07:00, remaining low until 09:00 when it climbs to 2. By 10:00, with the sun reaching its peak, the index escalates to 3, but the real intensity hits by 12:00, soaring to 7. The peak occurs at 14:00, where the UV Index peaks at an impressive 9, signaling a high need for sun protection. Even as the afternoon wanes, levels stay elevated, measuring 8 at 15:00 and gradually decreasing to 5 by 17:00. As the day draws to a close, the UV Index drops to 2 by 19:00, making way for a cooler evening. It's crucial to stay vigilant throughout the day, especially during those mid-afternoon hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 4 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 8 | 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, UV exposure fluctuates significantly, with the highest risk months occurring from May to August, when the UV Index reaches levels categorized as very high (UV Index 8-9). During these months, the burn time drastically decreases to just 15 minutes, emphasizing the need for protection. Conversely, the low risk months of January, November, and December offer a safer environment with a UV Index of 2 and a burn time of 45 minutes. As such, visitors and residents should be particularly vigilant during peak summer months by wearing sunscreen, protective clothing, and seeking shade during peak sun hours, while enjoying the milder winter months with less concern for UV exposure.
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 |
| Saint-Brandan | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 2 |
| 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 |