Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Lalleu, France, particularly as the region's climate brings both delight and potential risks with its moderate summers and sun exposure. Being aware of UV levels not only helps in preventing sunburn but also plays a significant role in maintaining long-term skin health. With peak UV Index values reaching as high as 9 during midday, it's essential for Lalleu's residents to take precautions and protect themselves, especially when enjoying the outdoors under the summer sun.
The UV Index for the day reflects a dynamic rise in solar intensity as we move toward midday, peaking at 9 between 1:00 PM and 2:00 PM. Starting off gently, the day begins with a low UV rate of 1 at both 7:00 AM and 8:00 AM, making it safe for early morning activities. As the sun climbs higher, we see a steady increase, hitting 4 by 10:00 AM and reaching 5 at 11:00 AM. By noon, the UV Index escalates to 7, signaling that sun protection is becoming increasingly crucial. Post-peak hours show a gradual decline, with readings at 8 and 7 for 3:00 PM and 4:00 PM, respectively, before tapering off to a more moderate 2 by 7:00 PM. Therefore, it’s essential to stay vigilant during peak hours to safeguard against 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 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | 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, UV exposure fluctuates significantly, with the highest risk months occurring from May to August, when the UV Index reaches levels categorized as very high (UV Index 8-9). During these months, the burn time drastically decreases to just 15 minutes, emphasizing the need for protection. Conversely, the low risk months of January, November, and December offer a safer environment with a UV Index of 2 and a burn time of 45 minutes. As such, visitors and residents should be particularly vigilant during peak summer months by wearing sunscreen, protective clothing, and seeking shade during peak sun hours, while enjoying the milder winter months with less concern for UV exposure.
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 |
| Lalleu | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 2 |
| 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 |