UV Index in Cardston, Canada

Last updated: July 2, 2025

Understanding the UV Index in Cardston, Canada is essential for promoting skin health and preventing sunburns. As residents and visitors enjoy the stunning landscapes and outdoor activities that this vibrant community offers, being aware of UV levels can make a significant difference in protecting one’s skin from harmful rays. In Cardston's Dfb climate, where summer UV exposure can spike—reaching levels as high as 9 during peak hours—it's crucial to stay informed and take proper precautions. By keeping an eye on the UV Index, you can enjoy the sunshine while ensuring your skin stays safe and healthy.

Hourly UV Index in Cardston

The UV Index throughout the day rises and falls dramatically, reflecting the sun's intensity. Starting the morning at a gentle 1 at both 07:00 and 08:00, the intensity gradually increases to 3 by 09:00. As the day progresses, the UV levels surge, peaking at a strong 9 between 13:00 and 14:00—a time when sun protection is crucial. Following this peak, the index gradually declines, settling at 6 by 16:00 and diminishing further to a safer 2 by 19:00. This data underlines the importance of seeking shade and applying sunscreen during those midday hours when UV exposure is at its highest.

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
09:003moderate30 min
10:004moderate30 min
11:006high25 min
12:008very high15 min
13:009very high15 min
14:009very high15 min
15:008very high15 min
16:006high25 min
17:005moderate30 min
18:003moderate30 min
19:002low45 min

Monthly UV Index Trends in Cardston

As the seasons change, so too does the UV Index, which reflects the intensity of ultraviolet radiation. The high-risk months for UV exposure are from May to August, where the Index reaches very high levels of 8 to 9, with a significantly shorter burn time of just 15 minutes. In contrast, the winter months of January and December present a low UV Index of 2, allowing for longer burn times of 45 minutes. Residents and visitors are advised to take precautions during peak UV months by wearing protective clothing, applying sunscreen, and seeking shade during the sun's peak hours to mitigate the risk of skin damage.

Monthly Maximum UV Index for Cardston, Canada

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Cardston. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235689997532
Data source: Statistical UV Index data for Cardston, 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 Cardston UV Index with Other Canada Cities

The table above highlights how UV exposure in Cardston compares to other major locations across Canada. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Cardston's solar exposure compared to other cities in Canada. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Edmonton UVI235677876421
Calgary UVI234688987421
Cardston235689997532
Montreal UVI245799887532
Ottawa UVI245899887532
Toronto UVI245899997532