UV Index in Stonewall, Canada

Last updated: May 3, 2025

In Stonewall, Canada, understanding the UV Index is crucial for protecting your skin from the sun's harmful rays. With typical afternoon UV levels peaking at a risky 7, awareness of these measurements can help prevent sunburn and promote overall skin health. The Dfb climate of Stonewall subjects residents to varying UV exposures, making it essential to know when you’re at the highest risk. By staying informed about the UV Index, you can enjoy the outdoors while safeguarding your skin against potential damage.

Hourly UV Index in Stonewall

The UV Index for the day showcases a dynamic journey through the hours, starting with a gentle rise at 07:00 with a value of 1, before gradually climbing to 2 at 08:00. By 09:00, it ramps up to 3, and at 10:00, it hits 4, signaling the sun's increasing intensity. The peak occurs between 12:00 and 14:00, where the UV Index reaches a max of 7, emphasizing the importance of sun protection during these critical hours. As the afternoon progresses, the index begins to taper off, landing at 6 by 15:00, and then sliding down to 5 at 16:00. By evening, the UV Index eases back to 3 at 17:00, before returning to its earlier levels of 2 at 18:00 and finally 1 by 19:00. Stay protected and enjoy the sun wisely!

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
10:004moderate30 min
11:005moderate30 min
12:007high25 min
13:007high25 min
14:007high25 min
15:006high25 min
16:005moderate30 min
17:003moderate30 min
18:002low45 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