Hottest (avg)
#12 / 12
Calgary in December
December weather, climate averages, and packing tips.
Avg High
Avg Low
Rain
Daylight 8h
What to expect
As winter continues, December brings, where temperatures are dropping quickly. Thermometers typically reach -3°C / 27°F, with evenings cooling to -12°C / 10°F.
It is one of the drier times of year, though occasional showers are still possible. With only around 8 hours of daylight, the sun sets early, so plan outdoor activities for the morning or midday.
December in context
How it compares to the rest of the year in Calgary.
Wettest (avg)
#3 / 12
Daylight Hours
#12 / 12
Windiest (avg)
#2 / 12
Highest UV
#12 / 12
Most Humid
#2 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 8.0 hours
- UV index (max)
- 2
- Typical sun hours
- 08:31 – 16:31
Rain & Snow
- Total
-
- Rainy days
- 7
- Cloud cover
- 61%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 70%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is December a good time to visit Calgary?
Typical December days in Calgary reach highs of -3°C (27°F) with nights around -12°C (10°F). It usually feels cold by day and very cold after dark. It is one of the drier months, which suits outdoor exploring and sightseeing.
What are temperatures like in December?
In December, you can usually expect highs of -3°C (27°F) and lows near -12°C (10°F). That means cold days and very cold nights, so pack layers you can add or remove.
How much does it rain in December?
Rainfall in December averages 15 mm (0.59 in) across roughly 7 days. Overall it is a moderately wet time of year, so showers are usually brief rather than all-day downpours.
How many hours of daylight are there in December?
You can expect about 8 hours of daylight in December. Sunrise is typically around 08:31 and sunset near 16:31. Daylight is quite limited, and it can feel like a short-day season.
Does the weather change during December?
December usually begins milder and cools down as the month goes on, so late-December can feel more like the next month.
How strong is the sun in December?
UV levels are usually low (around 2), so standard sun protection is enough.
Is it windy in December?
In December, average wind speeds are around 11 km/h (7 mph), with gusts on the windiest days reaching about 49 km/h (30 mph). On the ground, it is it often feels breezy, especially in more exposed spots or along the coast.