UV Index in Westmount, Canada

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents of Westmount, Canada, where the climate typically falls under zone Dfb—characterized by cold winters and warm summers. Awareness of UV levels is essential for protecting yourself against harmful sun exposure, as it plays a vital role in sunburn prevention and maintaining skin health. With peak UV indices reaching as high as 8 during midday hours, it's important to be proactive. Knowing when UV levels are highest can help you enjoy the sunshine safely while minimizing risks associated with skin damage. Stay informed to keep your skin protected and healthy!

Hourly UV Index in Westmount

As the sun rises, the UV Index begins its ascent, starting at a mere 1 at 7:00 AM. By 8:00 AM, it climbs to 2, but it’s by 9:00 AM that we see a moderate rise to 3. The intensity peaks between 11:00 AM and 1:00 PM, hitting a high of 8, indicating that sun protection methods should be in full swing. As the afternoon progresses, values slightly decrease, with the UV Index dropping to 6 by 3:00 PM and then gradually retreating to 1 by 7:00 PM. This hourly data serves as a reminder to stay vigilant about sun safety during the mid-day 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
08:002low45 min
09:003moderate30 min
10:005moderate30 min
11:007high25 min
12:008very high15 min
13:008very high15 min
14:007high25 min
15:006high25 min
16:004moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Westmount

Throughout the year, the UV Index demonstrates notable seasonal changes, with higher values typically occurring during the late spring and summer months. From April through August, UV levels peak, particularly in May and June, where the index reaches 9, indicating a very high risk of harm from unprotected sun exposure and a burn time of just 15 minutes. July and August maintain UV levels of 8, also classified as very high. High-risk months are particularly concentrated from April to September, where residents and visitors are advised to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade during the peak sun hours. Conversely, winter months such as January and December present a much lower risk, with a UV Index of 2 and low exposure category, allowing for more time outdoors without significant risk. It's crucial for everyone to stay informed on local UV levels and adjust sun safety practices accordingly, particularly during the high exposure months.

Monthly Maximum UV Index for Westmount, Canada

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Westmount. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Statistical UV Index data for Westmount, 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 Westmount UV Index with Other Canada Cities

The table above highlights how UV exposure in Westmount 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.
Westmount's solar exposure compared to other cities in Canada. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Edmonton UVI235677876421
Calgary UVI234688987421
Westmount245799887532
Montreal UVI245799887532
Ottawa UVI245899887532
Toronto UVI245899997532