UV Index
UV Index
Today's UV index in Calgary, Canada 
will be up to 6.3, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-09
With Calgary's UV index reaching 6.3, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Calgary's UV index varies by season, reaching moderate to high levels in summer and low levels in winter. It can get up to around 7 or 8 during peak sunny days in June and July. In winter, the UV index often drops below 2.
Calgary has cold winters with snow and mild summers with warm, sunny days. Spring and fall are cool with occasional rain. The weather changes quickly due to its location near the Rocky Mountains, causing sudden temperature shifts.
Compared to other parts of Canada, Calgary is drier and sunnier, especially in winter. It is colder than Vancouver but warmer than northern cities like Edmonton. Neighboring U.S. states like Montana have warmer summers but similar cold winters.
See the UV index hour by hour for Calgary, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.