UV Index in Lozanne, France

Last updated: July 2, 2025

Understanding the UV Index is essential for residents and visitors in Lozanne, France, where sunny days can pose a risk to skin health. With its typical Cfb climate, which features mild summers and clear skies, knowing the UV levels can significantly aid in preventing sunburn and reducing the long-term effects of UV exposure. During peak hours, especially between 10 AM and 3 PM, the UV Index can soar to levels as high as 9, indicating an increased risk of harm to unprotected skin. By staying informed about daily UV fluctuations, you can enjoy the beauty of Lozanne's landscapes while safeguarding your health.

Hourly UV Index in Lozanne

This hour-by-hour UV Index data paints a clear picture of sun intensity throughout the day. At 07:00 and 08:00, the UV Index remains low at just 1, making it safe for outdoor activities. However, as the clock ticks toward mid-morning, the value climbs to 2 by 09:00. The sun's power peaks between 12:00 and 14:00, with a striking 8 and 9 respectively, indicating a high risk of harm from unprotected sun exposure. By 15:00, the index begins to decrease, dipping to 8, and continues its descent through the late afternoon and evening, reaching 5 at 17:00 and down to 2 by 19:00. Remember, during those mid-day hours, proper sun protection is essential to enjoy the outdoors safely!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:001low45 min
09:002low45 min
10:004moderate30 min
11:006high25 min
12:008very high15 min
13:009very high15 min
14:009very high15 min
15:008very high15 min
16:007high25 min
17:005moderate30 min
18:003moderate30 min
19:002low45 min

Monthly UV Index Trends in Lozanne

Throughout the year, UV Index values show significant seasonal variation, with high-risk months occurring from April to August. During this time, the UV Index rises sharply, peaking at 10 in June and consistently remaining in the very high range of 8 to 10, implying a burn time of only 15 minutes for unprotected skin. In contrast, the winter months of January and December see lower UV levels, categorized as low, allowing for 45 minutes of safe sun exposure. As a general guideline, both residents and visitors should take precautions during the high-risk months by wearing sunscreen, protective clothing, and seeking shade during peak sun hours, especially from late spring to summer, to minimize the risk of UV-related health issues.

Monthly Maximum UV Index for Lozanne, France

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Lozanne. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec2356810986532
Data source: Statistical UV Index data for Lozanne, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Lozanne UV Index with Other France Cities

The table above highlights how UV exposure in Lozanne compares to other major locations across France. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Lozanne's solar exposure compared to other cities in France. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Paris UVI235689886421
Lozanne2356810986532
Lyon UVI2356810986532
Nice UVI2467810987532
Marseille UVI2457910987532
Toulouse UVI24679101097532