Best Time to Run in Montreal in December

The verdict: Midday. Subfreezing mornings mean midday is the only reliably runnable window. Layer up and watch for wind chill.

Montreal · December

Run in the midday.

Cold: average high 32°F, low 20°F. Layering becomes the workout. Humidity averages 76% — the limiting factor on most runs. Expect 16 rain days — plan around the radar. Subfreezing mornings mean midday is the only reliably runnable window. Layer up and watch for wind chill.

Avg high / low
32° / 20°F
Humidity
76%
Rain days
16/mo
Wind
12 mph

What December feels like in Montreal

Sunrise

08:27

Mid-month average

Sunset

17:13

Mid-month average

Time-of-day breakdown

Morning

Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.

Midday

Often the warmest few hours of a cold day. If you can only run once, midday gives you the most temperate window.

Evening

Cold drops back in fast after sunset. Tight window — done before headlamp territory.

What to wear running in Montreal in December

The kit for December in Montreal: cold-weather layers, gloves, and ear coverage on most mornings, a water-resistant cap or jacket on standby.

December vs the surrounding months

vs November
-10° avg high
+1 rain days
Montreal in November →
December
32°F avg high
16 rain days
Best: midday
vs January
+8° avg high
+1 rain days
Montreal in January →

All months for running in Montreal

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Today, not on average

See today's verdict for running in Montreal

This page is the climatology. The /running-weather/montreal page has the real-time verdict — best window today, scored hour by hour.

Frequently Asked Questions

What is the best time of day to run in Montreal in December?+
Midday. Subfreezing mornings mean midday is the only reliably runnable window. Layer up and watch for wind chill.
What's the average temperature in Montreal in December?+
Average high 32°F, average low 20°F.
How does December compare to surrounding months in Montreal?+
Compared to November (avg high 42°F), December is cooler. Compared to January (avg high 24°F), December is warmer.
Does it rain often in Montreal in December?+
Expect about 16 measurable rain days in December, on average.

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