Calgary weather in May
Calgary in May averages 10°C (49°F) and 58 mm of rain.
Of the twelve months in Calgary, May is the fifth warmest and the second wettest.
- Average temp
- 10°C (49°F)
3–16°C · 37–61°F
- Rainfall
- 58 mm
Showers likely
- Sunshine
- —
What is Calgary like in May?
Daytime
Days are cool.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Calgary in May?
A light rain jacket
About 58 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 3°C (37°F).
May compared with April and June
May in Calgary is 5.2°C warmer than April and 30 mm wetter than it, which averages 4°C (40°F).
May in Calgary is 4.3°C cooler than June and 48 mm drier than it, which averages 14°C (57°F).
Daylight in Calgary in May
On 15 May the sun is up for 15 hours 36 minutes in Calgary, rising about 05:45 and setting about 21:20 local time.
May ends 1 hour 23 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 56 minutes short of June, the longest-lit month here.
Where to stay in Calgary
Dates are a starting point for May.
Travel guides for Calgary
What to read before you book.
Calgary weather by month
TemperatureRainfall
How May compares with the rest of the year
May is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -6°C / 21°F | 9 mm |
| February | -6°C / 20°F | 13 mm |
| March | -2°C / 28°F | 19 mm |
| April | 4°C / 40°F | 28 mm |
| May | 10°C / 49°F | 58 mm |
| June | 14°C / 57°F | 106 mm |
| July | 18°C / 64°F | 44 mm |
| August | 16°C / 61°F | 47 mm |
| September | 12°C / 54°F | 33 mm |
| October | 5°C / 42°F | 21 mm |
| November | -2°C / 29°F | 17 mm |
| December | -6°C / 21°F | 17 mm |
Similar weather in May
Other destinations whose May averages sit close to this one.
Check another month
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FAQs about Calgary in May
May climate averages for Calgary, 1991–2020.
Calgary averages 10°C (49°F) in May, ranging from about 3°C (37°F) at night to 16°C (61°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 58 mm falls across May, enough to need a light jacket but not enough to reshape a trip.
No. May averages 10°C (49°F) against 14°C (57°F) in June — 4.3°C cooler.
May is 5.2°C warmer than April, and 30 mm wetter.
Yes. May falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 15 hours 36 minutes of daylight in mid-May, against 16 hours 32 minutes in June and 7 hours 56 minutes in December.
On 15 May, sunrise is about 05:45 and sunset about 21:20 local time. Both shift across the month — the month ends 1 hour 23 minutes longer than it starts.
