Calgary weather in May
Temperature, rain and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Good
Best time to visit: June – September
What is the weather like in Calgary in May?
In May, Calgary is cool: daytime highs average 16 °C, and nights cool down to about 3 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 68 mm in total. Snow falls on about 2 days. All in all, May is a good month for a holiday in Calgary.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 15 h 30 min05:47 – 21:17
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 2 days1 cm or more of fresh snowAll months
- Time zone
- UTC−6America/Edmonton
How the score comes together
- Temperatureweight 50 %79 %
- Sunshineweight 20 %82 %
- Few rainy daysweight 30 %49 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Calgary in May: quick answers
Is Calgary hot in May?
No. In May, Calgary is cool: daytime highs average 16 °C and nights drop to about 3 °C.
Does it rain much in Calgary in May?
Rain is frequent, with about 11 rainy days and 68 mm in total.
Calgary month by month
The whole year in CalgaryAll destinations: CanadaWhere to go in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences