Last updated: June 2, 2025
Understanding the UV Index in Castelnau-le-Lez, France is essential to safeguarding your skin health and preventing sunburn. As a region basking in a Mediterranean climate, Castelnau-le-Lez experiences significant UV exposure, particularly during peak hours from late morning to early afternoon when levels can reach as high as 10. Being aware of these UV levels not only helps you plan your outdoor activities safely but also protects you from long-term skin damage. With UV Index readings fluctuating throughout the day, it's vital to stay informed and take appropriate precautions to enjoy the sunny weather without compromising your well-being.
As the sun rises, the UV Index begins at a gentle 1 at 07:00 and 08:00, indicating minimal risk for sun exposure. However, by 09:00, intensity picks up to 3, and a notable climb ensues as the morning progresses. At 10:00, it reaches 4, and by 11:00, the UV Index skyrockets to 7, signaling the need for sun protection. Midday brings the peak hours—by 12:00 and 13:00, it hits a sizzling 9 and a maximum of 10, posing a significant risk of harm from unprotected sun exposure. As the day winds down, the UV Index begins to gracefully decline: 9 at 15:00, followed by 7 at 16:00, 5 at 17:00, and finally settling at 3 by 18:00. The sun's fading rays continue to cast a softer light until it drops to 2 by 19:00, wrapping up a day where awareness of UV exposure was key to safe enjoyment of the outdoors.
| 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 | 4 | 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 | 10 | 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 |
Seasonal changes in UV exposure highlight significant variations throughout the year, with high-risk months identified primarily from April to August, where the UV Index peaks at 10 during June and July, indicating a very high exposure category and a rapid burn time of just 15 minutes. As spring transitions into summer, visitors and residents are urged to employ protective measures such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours. Conversely, fall and winter months like January and December present lower UV indices, categorized as low, allowing for extended outdoor activity with a burn time of up to 45 minutes. Staying informed about UV levels can help ensure safe outdoor enjoyment 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 |
| Castelnau-le-Lez | 2 | 4 | 5 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |
| Toulouse UVI | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |