UV Index in Saint-Just, France

Last updated: August 1, 2025

In Saint-Just, France, being aware of the UV Index is essential for maintaining skin health and preventing sunburn. Understanding the UV levels can help residents and visitors alike make informed decisions about sun exposure, especially during peak hours when the index soars to 8 or 9 from noon to mid-afternoon. With a temperate oceanic climate (Cfb), Saint-Just enjoys a fair amount of sunshine, which increases the risk of UV exposure during the summer months. By staying informed about the UV Index, you can enjoy the beautiful outdoors without compromising your skin’s safety.

Hourly UV Index in Saint-Just

As the sun rises, the UV Index begins at a gentle 1 at 07:00, remaining low until 09:00 when it climbs to 2. By 10:00, with the sun reaching its peak, the index escalates to 3, but the real intensity hits by 12:00, soaring to 7. The peak occurs at 14:00, where the UV Index peaks at an impressive 9, signaling a high need for sun protection. Even as the afternoon wanes, levels stay elevated, measuring 8 at 15:00 and gradually decreasing to 5 by 17:00. As the day draws to a close, the UV Index drops to 2 by 19:00, making way for a cooler evening. It's crucial to stay vigilant throughout the day, especially during those mid-afternoon hours!

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
09:001low45 min
10:003moderate30 min
11:004moderate30 min
12:006high25 min
13:007high25 min
14:008very high15 min
15:008very high15 min
16:006high25 min
17:005moderate30 min
18:003moderate30 min
19:002low45 min

Monthly UV Index Trends in Saint-Just

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.

Monthly Maximum UV Index for Saint-Just, France

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Saint-Just. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235789986422
Data source: Statistical UV Index data for Saint-Just, 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 Saint-Just UV Index with Other France Cities

The table above highlights how UV exposure in Saint-Just 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.
Saint-Just's solar exposure compared to other cities in France. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Paris UVI235689886421
Saint-Just235689986422
Lyon UVI2356810986532
Nice UVI2467810987532
Marseille UVI2457910987532
Toulouse UVI24679101097532