Calgary weather in August
Calgary in August averages 16°C (61°F) and 47 mm of rain.
Of the twelve months in Calgary, August is the second warmest and the third wettest.
- Average temp
- 16°C (61°F)
9–23°C · 48–74°F
- Rainfall
- 47 mm
Not much rain
- Sunshine
- —
What is Calgary like in August?
Daytime
Days are mild.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Calgary in August?
A warm mid-layer
Nights drop to around 9°C (48°F).
August compared with July and September
August in Calgary is 1.4°C cooler than July and about as wet as it, which averages 18°C (64°F).
August in Calgary is 4.2°C warmer than September and 14 mm wetter than it, which averages 12°C (54°F).
Daylight in Calgary in August
On 15 August the sun is up for 14 hours 32 minutes in Calgary, rising about 06:24 and setting about 20:55 local time.
August ends 1 hour 45 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 2 hours short of June, the longest-lit month here.
Where to stay in Calgary
Dates are a starting point for August.
Travel guides for Calgary
What to read before you book.
Calgary weather by month
TemperatureRainfall
How August compares with the rest of the year
August 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 August
Other destinations whose August averages sit close to this one.
Check another month
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FAQs about Calgary in August
August climate averages for Calgary, 1991–2020.
Calgary averages 16°C (61°F) in August, ranging from about 9°C (48°F) at night to 23°C (74°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. August sees only about 47 mm, so rain is unlikely to affect your plans.
Yes. August averages 16°C (61°F) against 12°C (54°F) in September — 4.2°C warmer.
August is 1.4°C cooler than July, and about as wet.
Yes. August 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 August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 14 hours 32 minutes of daylight in mid-August, against 16 hours 32 minutes in June and 7 hours 56 minutes in December.
On 15 August, sunrise is about 06:24 and sunset about 20:55 local time. Both shift across the month — the month ends 1 hour 45 minutes shorter than it starts.
