Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of Grosseto-Prugna, France, a stunning area known for its Mediterranean climate. The UV levels can have a significant impact on your skin health, with severe risks of sunburn and long-term effects from overexposure to harmful rays. With peak UV Index readings reaching 9 during midday hours, it’s vital to stay informed and take protective measures against sun damage. Awareness of these levels not only helps in planning outdoor activities but also promotes healthier skin habits. As you bask in the beauty of Grosseto-Prugna, let this UV Index guide empower you to protect yourself from the sun's intensity.
The UV Index throughout the day shows a notable peak around midday, reaching a maximum of 9 at both 12:00 PM and 1:00 PM. Early in the morning, from 7:00 AM to 8:00 AM, the index remains at a low 1, indicating minimal UV exposure. As the day progresses, it gradually rises, hitting 5 by 10:00 AM and surging to 7 by 11:00 AM. The intensity continues to climb until it stabilizes at 9 during the hottest hours before gradually descending after 3:00 PM, dropping to 4 by 5:00 PM and returning to a comfortable 1 by 7:00 PM. For those planning outdoor activities, it's crucial to take precautions during the peak hours of 12:00 PM to 2:00 PM to avoid harmful UV exposure.
| 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 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits notable seasonal fluctuations, with the highest levels occurring from May to August. During this peak period, the UV Index reaches a very high level of 9 to 10, requiring careful attention as the burn time is reduced to just 15 minutes. The high-risk months for sun exposure are March through October, with particular caution advised during May to July. Visitors and residents should prioritize sun protection during these months by wearing sunscreen, protective clothing, and seeking shade to minimize harmful effects. Conversely, from November to February, the UV Index drops to moderate or low levels, where longer exposure times are safer, but awareness should still be maintained, especially during February and March.
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 |
| Grosseto-Prugna | 3 | 4 | 6 | 7 | 9 | 10 | 9 | 9 | 7 | 6 | 4 | 2 |