Last updated: June 2, 2025
Understanding the UV Index in Saint-Julien-aux-Bois, France, is crucial for protecting your skin and overall health. With its Cfb climate, the region often experiences significant UV exposure, especially during the peak hours from 11 AM to 3 PM when the index can reach as high as 10. Awareness of these UV levels is vital for preventing sunburn and long-term skin damage. As you enjoy outdoor activities in this picturesque town, knowing how to gauge UV intensity can make all the difference in ensuring a safe and enjoyable sun experience.
At 07:00 AM, the UV Index starts off low at 1, making sun protection unnecessary. However, as the day progresses, the UV intensity begins to climb, reaching 3 by 09:00 AM. The real surge occurs around 11:00 AM, where it escalates to 7, and by 12:00 PM, it peaks at a significant 8. The maximum UV exposure is recorded between 01:00 PM and 02:00 PM, both hitting an impressive 10. Following this zenith, the index gradually decreases, dropping to 9 by 03:00 PM, and tapering down to 5 by 05:00 PM. As the sun sets, the UV Index returns to more manageable levels, falling to 2 by 07:00 PM. To ensure safety during peak hours, it is advisable to apply sunscreen and seek shade from 11:00 AM to 02:00 PM.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | 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 |
The UV Index shows significant seasonal variation, with high-risk months peaking from May to August, where the index reaches levels of 9 to 10 and is categorized as very high. In these months, the recommended burn time is as short as 15 minutes, highlighting the need for increased sun protection strategies. As temperatures rise, particularly from March to September, UV exposure intensifies, with reminders to seek shade, wear protective clothing, and apply sunscreen frequently. Conversely, the months of January and December present a low risk, with an index of 2 and a burn time of 45 minutes. Visitors and residents should be particularly cautious during the high UV months, ensuring to stay safe while enjoying the outdoors.
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 |
| Saint-Julien-aux-Bois | 2 | 3 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |
| Toulouse UVI | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |