Last updated: May 3, 2025
Understanding the UV Index is essential for residents and visitors of Corneville-sur-Risle, where the climate's temperate maritime conditions can often lead to varying levels of sun exposure. As UV levels can rapidly increase during the day, particularly around midday, being aware of these fluctuations is crucial for preventing sunburn and protecting your long-term skin health. With peak UV indexes rising to 8 between 2:00 PM and 3:00 PM, it's important to stay informed and take necessary precautions to enjoy the outdoors safely while minimizing the risk of harmful UV radiation.
Morning dawns with a mild UV Index, peaking at 1 between 7:00 and 8:00. As the sun climbs higher, the intensity gradually increases, reaching 2 at 9:00 and then soaring to 5 by 11:00. The UV Index hits its peak at 8 by 14:00, a clear signal for sun safety! After this maximum, it begins to taper off, dropping to 4 at 17:00 and settling down to a comfortable 2 by 19:00. So, whether you're basking in the sun or seeking shade, remember to keep an eye on that UV Index!
| 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 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, the UV Index exhibits notable seasonal changes, peaking during the summer months of May through August when it reaches levels categorized as very high. May sees a UV Index of 8, progressing to 9 in both June and July, before slightly declining to 8 in August. These months are particularly high-risk, with significantly reduced burn times of just 15 minutes for unprotected skin. As summer transitions to fall, the UV Index decreases, dropping to 6 in September and moderating to 4 in October, where the burn time increases back to 30 minutes. Residents and visitors are advised to take extra precautions during the high-risk months—wearing sunscreen, protective clothing, and sunglasses to reduce the risk of sun damage, especially during midday hours when the UV radiation is strongest. In contrast, the winter months from November to February present lower UV levels, with January and December categorized as low, allowing for safer outdoor activities without extensive sun protection.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Corneville-sur-Risle | 2 | 3 | 4 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| 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 |