Last updated: June 2, 2025
Understanding the UV Index is crucial for the residents and visitors of Saint-Genis-d'Hiersac, France, where sun exposure can significantly impact your skin health. With the region's Cfb climate, the intensity of UV radiation varies throughout the day, hitting peaks between noon and 3 PM (with values soaring to 9) that can lead to quick sunburn if precautions are not taken. By staying informed about UV levels, you can effectively mitigate risks associated with sun exposure, protecting yourself from harmful short-term effects like sunburn, and long-term concerns such as skin cancer. Make sun safety a priority during your time under the sun in this charming locale!
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, the UV Index in the region exhibits significant seasonal variation, with the highest values occurring during the summer months. May through August are considered high-risk months, where the UV Index reaches its peak at 9, categorized as very high, allowing for a burn time of only 15 minutes. This necessitates increased caution, as prolonged exposure can lead to skin damage. In contrast, January, December, and February present a lower risk, with indices of 2 and 3 which classify them as low to moderate skin exposure categories, providing more lenient burn times of 45 and 30 minutes respectively. Visitors and residents are strongly advised to be aware of these seasonal changes, particularly during the summer months, and to implement protective measures such as wearing sunscreen, hats, and protective clothing when 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 |
| Saint-Genis-d'Hiersac | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 9 | 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 |