Calgary, Canada Clear Sky Chart

Calgary, Canada (51.05°, -114.07°) · Updated 22:31 MDT
16
Poor
medium confidence ⓘ
medium · Forecast stability

Tonight's forecast has shifted a little across recent updates — worth a re-check closer to dusk. We compare how much tonight's score has moved across our recent forecast updates, a score that's held steady is more trustworthy.

Confidence reflects how trustworthy the forecast is, it doesn't change the score.

Probably skip tonight
Heavy cloud expected with moderate moon interference. Some dew risk later in the night.
Sunset
18:17
Sunrise
08:23
Usable Hours
0/11
Moon
87%
Visible Planets
♂ Mars49° SE
♃ Jupiter43° SE
♄ Saturn40° S
⛢ Uranus60° S
♆ Neptune39° S
Sky darkness
City sky (Bortle 8-9)
SQM 17.4, estimated from satellite night lights. A property of the place, separate from tonight’s score. How we estimate this
Open Full Calgary, Canada Forecast →
Hour-by-hour scores · Planet rise/set & visibility · ISS & satellite passes · Moon detail · Full score breakdown · Aurora & observer profiles

Stargazing in Calgary, Canada

Calgary's proximity to the Canadian Rockies provides stunning dark-sky access within an hour — Bortle 3 skies are common in Kananaskis Country. The city's Bortle 6–7 drops quickly heading west into the foothills. Jasper Dark Sky Preserve (4 hours north-west) is one of the world's largest. The Alberta prairie to the east offers vast, unobstructed horizons. Calgary's chinook winds occasionally bring sudden warm, clear spells in winter.

Calgary, Canada Stargazing FAQ

Where is the best dark sky near Calgary?∨
Kananaskis Country in the Rockies offers Bortle 3 skies within an hour heading west. Jasper Dark Sky Preserve, about 4 hours north-west, is one of the world's largest. The Alberta prairie to the east offers vast, unobstructed horizons.
Can you see the northern lights from Calgary?∨
Yes — at 51°N, Calgary has good aurora prospects. Kp 5+ storms produce visible displays, and the open prairie to the north provides an excellent unobstructed horizon for viewing.
What are chinook winds and do they affect stargazing?∨
Chinooks are warm, dry winds that descend from the Rockies, occasionally bringing sudden warm, clear spells in winter. They can produce excellent transparency, though the wind itself may affect telescope stability.

Stargazing guides

Is Tonight Good for Stargazing?

The answer depends on five things you can check right now.

Light Pollution & the Bortle Scale

How dark is your sky: and what difference does it make?

What Planets Are Visible Tonight?

Real visibility data for all 7 naked-eye and telescope planets, calculated for your location.

Why the Sky Isn't Dark in Summer

What happens to stargazing when the sun barely sets: and what you can still see.

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