UV Index in Hearst, Canada

Last updated: July 2, 2025

In Hearst, Canada, staying informed about the UV Index is crucial for protecting your skin and maintaining overall health. As sun exposure increases throughout the day, understanding UV levels helps you avoid sunburn and reduces your long-term risk of skin damage. With a Dfc climate, residents of Hearst can experience fluctuating UV exposure, particularly between the late morning and early afternoon when indices peak at 8. By being aware of these levels, you can take proactive measures to enjoy the outdoors safely while keeping your skin healthy.

Hourly UV Index in Hearst

As the day unfolds, the UV Index intensifies significantly, peaking at 8 between 1:00 PM and 2:00 PM—a clear signal for sun safety. Starting from a modest 1 at 7:00 AM, the index steadily escalates, hitting 5 by 11:00 AM and reaching 7 just before noon. This upward trend continues until 2:00 PM, after which the UV levels gradually decline, dropping back to 4 by 5:00 PM and dwindling to 1 again by 7:00 PM. With this data in mind, it's vital to take protective measures during the midday hours when the sun is strongest. Stay sun-safe!

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

Monthly UV Index Trends in Hearst

During the year, the UV Index exhibits significant seasonal changes, highlighting varying levels of sun exposure risk. From January through March, UV levels are relatively low to moderate, with burn times extending from 30 to 45 minutes. However, the risk escalates dramatically in April and peaks during the summer months of May to July, which record a UV Index of 8 and a very high exposure category, resulting in a rapid burn time of just 15 minutes. As the year transitions into August and September, the UV levels remain high, though slightly reduced, necessitating a burn time of 25 minutes. By October, the exposure returns to moderate levels, followed by a drop to low risk in November and December. Visitors and residents should take precautions, especially during the high-risk months of April to September, by wearing sunscreen, protective clothing, and seeking shade during peak hours to mitigate the risk of harmful UV exposure.

Monthly Maximum UV Index for Hearst, Canada

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hearst. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235788876421
Data source: Statistical UV Index data for Hearst, 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 Hearst UV Index with Other Canada Cities

The table above highlights how UV exposure in Hearst 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.
Hearst's solar exposure compared to other cities in Canada. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Edmonton UVI235677876421
Hearst234788876421
Calgary UVI234688987421
Montreal UVI245799887532
Ottawa UVI245899887532
Toronto UVI245899997532