UV Index in Churchill, Canada

Last updated: August 1, 2025

In Churchill, Canada, being aware of the UV Index is crucial for ensuring skin health and preventing sunburn, particularly in a region where the climate is classified as Dfc—characterized by cold summers and long winters. Understanding UV levels is essential not only for enjoying outdoor activities safely but also for protecting yourself from potentially harmful skin damage. With peak UV Index values reaching as high as 7 during summer months, residents and visitors must remain vigilant about their exposure. Whether you're embarking on a thrilling adventure or simply soaking in the unique beauty of Churchill, staying informed about UV risks will help you take full advantage of the great outdoors without compromising your well-being.

Hourly UV Index in Churchill

The UV Index starts off mildly low at 1 at 7:00 AM, gradually climbing throughout the morning. By 10:00 AM, it reaches a moderate 4, with significant exposure risk beginning around 11:00 AM as it spikes to 6. The highest levels occur from 12:00 PM to 2:00 PM, maintaining a strong 7 during peak hours—perfect for sun enthusiasts but a cause for caution. As the afternoon progresses, the index gradually declines, dropping to 4 by 5:00 PM and further down to 1 by 7:00 PM. This reveals a clear pattern: the midday sun offers the greatest intensity, so sun safety measures are crucial during those 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
09:002low45 min
10:003moderate30 min
11:004moderate30 min
12:005moderate30 min
13:006high25 min
14:005moderate30 min
15:005moderate30 min
16:004moderate30 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Churchill

Throughout the year, UV Index levels exhibit significant seasonal variations, with high-risk months primarily occurring from April to August. During this period, the UV Index reaches its peak, particularly in May and June with values of 8 and 9, indicating very high exposure categories and necessitating a burn time of only 15 minutes. Conversely, the months of January, February, October, November, and December present a low risk of UV exposure, with burn times up to 45 minutes. It is advisable for visitors and residents to take precautions during the high-risk months, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours, particularly when the UV Index is at or above 6. By remaining vigilant and informed, individuals can enjoy their outdoor activities safely year-round.

Monthly Maximum UV Index for Churchill, Canada

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Churchill. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124698764211
Data source: Statistical UV Index data for Churchill, 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 Churchill UV Index with Other Canada Cities

The table above highlights how UV exposure in Churchill 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.
Churchill's solar exposure compared to other cities in Canada. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Churchill123689764211
Edmonton UVI235677876421
Calgary UVI234688987421
Montreal UVI245799887532
Ottawa UVI245899887532
Toronto UVI245899997532