Last updated: July 2, 2025
In Leognan, France, being aware of the UV Index is crucial for safeguarding your skin against the sun's harmful rays. Understanding UV levels is essential for preventing sunburn and promoting overall skin health, especially during the warmer months. With Leognan’s Cfb climate, characterized by a temperate environment, the UV exposure can spike, particularly between 10:00 AM and 3:00 PM, where readings soar to 9. Stay informed and protect yourself, as even moderate UV exposure can lead to significant skin damage over time.
The UV Index throughout the day presents a clear rising trend in sun exposure. Starting in the morning, from 07:00 to 09:00, it remains low, peaking at 2 by 09:00. As the sun climbs higher, the index surges, reaching a moderate 4 by 10:00 and then escalating to a notable 6 at 11:00. The real intensity hits its peak between 12:00 and 15:00, soaring to a maximal level of 9—the prime time for sun safety awareness. As the afternoon progresses toward evening, the index gradually declines, falling to 3 by 18:00 and settling at 2 by 19:00. This dynamic fluctuation highlights the importance of being sun-smart during midday hours when UV exposure is at its strongest.
| 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 | 7 | high | 25 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, UV exposure varies significantly, with the highest levels occurring from May to August. During these months, the UV Index reaches 8 to 10, categorized as very high, with a burn time as quick as 15 minutes. The high-risk months include March through September, particularly May, June, and July, which require vigilant sun protection measures. In contrast, the UV Index is lower in the winter months, particularly in January and December where it drops to 2, indicating a low exposure category with a burn time of 45 minutes. Visitors and residents are advised to take extra precautions during peak UV months—wearing protective clothing, applying broad-spectrum sunscreen frequently, and seeking shade during peak sunlight hours to reduce the risk of skin damage.
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 |
| Leognan | 2 | 3 | 6 | 7 | 8 | 10 | 9 | 9 | 7 | 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 |