UV Index in Stonewall, Canada

Last updated: June 2, 2025

In Stonewall, Canada, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels helps in preventing sunburn, reducing the risk of skin cancer, and promoting long-term skin health. With its Dfb climate, Stonewall experiences varied UV exposure throughout the year, peaking around midday with an index reaching 9—a significant risk for unprotected skin. By staying informed about daily UV levels, residents can take proactive steps to enjoy the sun safely while protecting their skin.

Hourly UV Index in Stonewall

The UV Index throughout the day reveals an interesting pattern of sun exposure. Early risers will find a gentle start at 1 by 07:00, slowly increasing to 2 by 08:00. As the sun ascends, it peaks at 9 during the afternoon's warmest hours, specifically 13:00. The intensity then tapers off, with values decreasing to 6 by 16:00 and dropping further to 1 by 19:00. Notably, the high point occurs at 12:00, reaching a robust 8—ideal for sun lovers, but a friendly reminder to protect your skin during those peak 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
08:002low45 min
09:003moderate30 min
10:005moderate30 min
11:006high25 min
12:008very high15 min
13:009very high15 min
14:008very high15 min
15:007high25 min
16:006high25 min
17:004moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Stonewall

Throughout the year, UV Index levels exhibit significant seasonal changes that affect sun safety for both residents and visitors. The highest risk months are typically from June to August, when UV Index values peak at 9 in June and remain at 8 in July and August, categorizing these months as having very high exposure risk with a burn time of just 15 minutes. Conversely, January, November, and December feature low UV levels (UV Index 1-2), granting a longer burn time of 45 minutes. As the season transitions into spring, UV levels increase from moderate in February and March to high from April and May, where a burn time drops to 25 minutes. Visitors and residents are advised to take protective measures during high-risk months, including wearing sunscreen, protective clothing, and seeking shade to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Stonewall, Canada

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Stonewall. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec245679886421
Data source: Statistical UV Index data for Stonewall, 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 Stonewall UV Index with Other Canada Cities

The table above highlights how UV exposure in Stonewall 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.
Stonewall's solar exposure compared to other cities in Canada. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Edmonton UVI235677876421
Calgary UVI234688987421
Stonewall244679886421
Montreal UVI245799887532
Ottawa UVI245899887532
Toronto UVI245899997532