Alberta · Canada
Calgary in May
In May, Calgary averages a daytime high of 16 °C and a night-time low of 2 °C, with about 62 mm of rain over the month. It falls outside Calgary's most comfortable months, July and August.
- Average high
- 16 °C
- Average low
- 2 °C
- Rain in the month
- 62 mm
- Daylight on 15 May
- 15 h 40 min
- Comfortable month
- No
- Places to stay
- 74
When to go
How May compares with the rest of the year in Calgary
May is the 5th warmest month in Calgary by average daytime high; across the year the highs run from -2 °C to 23 °C and the lows from -14 °C to 9 °C. By day, May is 5 °C warmer than April, and June is 3 °C warmer than May.
May brings 62 mm of rain, more than the monthly average of 38 mm (453 mm a year); it is tied for the 2nd wettest month.
On 15 May the sun is up for about 15 h 40 min, against 8 h at the shortest and 16 h 30 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | -2 °C | -14 °C | 15 mm | |
| February | 0 °C | -13 °C | 11 mm | |
| March | 4 °C | -8 °C | 22 mm | |
| April | 10 °C | -3 °C | 38 mm | |
| May | 16 °C | 2 °C | 62 mm | |
| June | 19 °C | 6 °C | 99 mm | |
| July | 23 °C | 9 °C | 62 mm | Yes |
| August | 22 °C | 8 °C | 47 mm | Yes |
| September | 18 °C | 3 °C | 45 mm | |
| October | 11 °C | -2 °C | 23 mm | |
| November | 3 °C | -8 °C | 18 mm | |
| December | -1 °C | -13 °C | 13 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is May a good time to visit Calgary?
Not by the measure used here: the average high of 16 °C is below 18 °C. The comfortable months in Calgary are July and August; the nearest are August, before, and July, after.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
When to go
Destinations near Calgary that are comfortable in May
Within 300 km, nearest first, by the same measure.
Where to stay
Where to stay in Calgary
This guide lists 74 places to stay in Calgary, hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 14; 1–3 km, 6; 3–10 km, 33; 10 km or more, 21.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; places to stay from each operator's own public pages and Wikidata. How this guide is made.