Calgary weather in May
Long-run climate averages for Calgary, Alberta in May, plus what the forecast models say for the days ahead.
In May, Calgary averages 18°C by day and 5°C at night. The wettest month is usually June.
May in Calgary averages a daytime high of 18°C and an overnight low of 5°C, which reads as mild for this part of the world. Across the whole year Calgary sees roughly 485 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like — for that, see the live Calgary forecast with every model compared and how much they currently agree.
Calgary weather by month
what to expect in Calgary through the yearHere is Calgary's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Calgary by season.