Last updated: May 3, 2025
Understanding the UV Index in Grandrieu, France, is crucial for safeguarding your skin and overall health. With peak UV levels reaching a high of 9 during the midday hours, awareness of these levels can help prevent sunburn and long-term skin damage. Grandrieu, with its Cfb climate, experiences substantial sun exposure, especially in the summer months. By monitoring the UV Index regularly, residents and visitors alike can better enjoy the outdoors while minimizing the risks associated with harmful ultraviolet radiation.
As the sun rises, the UV Index starts at a maximum of 1 at 7:00 AM, indicating safe sun exposure. By 9:00 AM, it climbs to 2, suggesting that while it’s still mild, some caution is advisable. The index spikes significantly from 10:00 AM, reaching 4, and continues to rise throughout the day. At 12:00 PM, it peaks at an impressive 8, followed closely by a high of 9 at both 1:00 PM and 2:00 PM—perfect times to seek shade or lather on sunscreen! As the afternoon wanes, the UV Index gradually declines to 6 at 4:00 PM, then eases to 3 by 6:00 PM, finally dipping back down to 1 by the evening. Enjoy the sun, but remember to protect your skin during those midday highs!
| 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 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in UV exposure highlight significant fluctuations in the UV Index. The months of May through August are particularly high-risk, with UV Index values reaching a peak of 10, indicating very high exposure and a burn time of only 15 minutes. Visitors and residents should remain vigilant during these months, employing protective measures such as sunscreen and clothing, especially between 10 AM and 4 PM when UV exposure is strongest. March and April also show increased risk with UV Index values of 6 and 7 respectively. Conversely, January and December present lower risk levels, with UV Index values of 2 indicating low exposure and longer potential burn times of 45 minutes. It is essential to monitor UV levels year-round and adjust sun protection strategies accordingly to ensure safety.
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 |
| 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 |
| Grandrieu | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |