Last updated: June 2, 2025
In Ria-Sirach, France, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With the region's temperate Cfb climate, summer months can expose residents and visitors to elevated UV levels, particularly during midday hours when the index peaks at 11. Being informed about these UV levels allows you to take proactive measures to protect your skin during the highest exposure times, especially between 11 AM and 3 PM. Whether you're enjoying outdoor activities or simply soaking up the sun, staying aware of the UV Index is key to enjoying a safe and healthy experience in the vibrant Ria-Sirach sunshine.
As the day unfolds, the UV Index rises steadily, peaking at an impressive 11 by 2 PM. Starting at a gentle 1 in the early morning hours, it rapidly climbs to 5 by 10 AM and hits 7 by 11 AM. The sun’s intensity reaches its zenith at 1 PM, marked by a scorching 10, before slightly receding to 8 at 4 PM. As the afternoon transitions into evening, the index tapers off to 6 at 5 PM, and continues to decline, settling at a mild 2 by 7 PM. This data serves as a crucial reminder to take safety precautions during peak sun exposure, especially from 12 PM to 3 PM, when the risk of UV damage is highest.
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV Index levels fluctuate significantly, creating varying exposure risks for individuals. The high-risk months for UV exposure are April through August, with the highest readings occurring in June and July, where the UV Index reaches a peak of 11, classified as extreme. During these months, the recommended burn time drops to just 10 minutes. As such, it is crucial for both visitors and residents to adopt protective measures, including wearing sunscreen, protective clothing, and limiting sun exposure during peak hours. March marks the transition to higher UV levels, with an index of 6, while September and October drop back to high and moderate levels, respectively. Ultimately, staying informed about UV levels can help safeguard health year-round.
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 |
| Ria-Sirach | 3 | 4 | 6 | 8 | 9 | 11 | 11 | 9 | 8 | 6 | 3 | 2 |