UV Index in Pasadena, Canada

Last updated: June 2, 2025

Understanding the UV Index in Pasadena, Canada is essential for safeguarding your skin and overall health. With summer temperatures soaring in this Dfb climate zone, the risk of sunburn and long-term skin damage increases significantly, particularly when UV levels peak around midday. By being aware of the UV levels, you can take proactive measures to protect yourself during those critical times, especially between 11 AM and 2 PM when the index reaches a high of 9. Embrace the sun safely and enjoy Pasadena's beautiful outdoor activities while prioritizing your skin's health!

Hourly UV Index in Pasadena

The UV Index throughout the day presents a clear pattern of intensity, peaking at midday. Starting from a mild level of 1 at 07:00, the index rises steadily, reaching 2 by 08:00. The real surge occurs between 09:00 and 13:00, where it escalates from 4 to a striking 9—the highest point of the day. As the afternoon unfolds, the intensity slightly declines to 7 at 15:00, before tapering off to 5 at 16:00. The evening sees a further decrease, settling back to 2 by 18:00 and returning to 1 at 19:00. For those enjoying outdoor activities, it’s essential to take precautions, especially during the peak hours from 11:00 to 14:00 when the UV rays are most potent.

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
09:004moderate30 min
10:006high25 min
11:008very high15 min
12:009very high15 min
13:009very high15 min
14:009very high15 min
15:007high25 min
16:005moderate30 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Pasadena

Throughout the year, UV exposure levels vary significantly, with high-risk months typically occurring from April to August. During this period, the UV Index peaks at 9 in June, categorized as very high, where burn time drops to just 15 minutes. Specifically, May and June present especially elevated risk, while March marks the transition into spring with a moderate exposure level of 5. Conversely, winter months such as January (UV Index 2) and December (UV Index 1) offer a much lower risk, with burn times stretching up to 45 minutes. Visitors and residents are strongly advised to use sun protection during the spring and summer months, including wearing sunscreen, protective clothing, and seeking shade, especially during peak hours. Remember to stay informed and assess your local UV Index to safeguard your skin throughout the seasons.

Monthly Maximum UV Index for Pasadena, Canada

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Pasadena. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235789886421
Data source: Statistical UV Index data for Pasadena, 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 Pasadena UV Index with Other Canada Cities

The table above highlights how UV exposure in Pasadena 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.
Pasadena's solar exposure compared to other cities in Canada. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Edmonton UVI235677876421
Calgary UVI234688987421
Pasadena235789886421
Montreal UVI245799887532
Ottawa UVI245899887532
Toronto UVI245899997532