SeasonScore
Ottawa, Canada
Photo: G. Baranski · CC BY-SA 3.0

Canada

Ottawa in December

❄️ Snowy winter

Cold and some showers. Watch for snow & ice risk.

🎒 Pack: winter coat, gloves & hat

Best months: May (9.3), Jul (9.3), Sep (9.3)

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Why December scores 7.2What goes into the score

How it works
🌡️ -2° / -10°C🌧️ 72 mm💧 dew pt -9°🍃 PM2.5 5
  • Weather comfort5.3
    • !Cold (-2°C highs / -10°C lows)
    • ✓Comfortable humidity (dew point -9°C)
    • ✓Mostly dry (~72 mm rain)
  • Air quality10.0
    • ✓Good (within WHO guideline) (PM2.5 ~5 µg/m³)
  • Seasonal hazards8.5
    • !Snow & ice: Average low -10°C
  • Safety baseline8.5
    • ·Normal precautions
Compare monthsPut December side by side with another month
DecMay
Score7.2 Good9.3 Excellent
Season❄️ Snowy winter🌷 Spring
High / low-2° / -10°20° / 8°
Rain72 mm75 mm
Humiditydew pt -9°dew pt 8°
PM2.55 µg/m³6 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Ottawa International Airport weather-station normals. Rainfall: Ottawa International Airport weather-station normals (national met service).

Holidays & crowdsDecember 2026

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • Christmas Day 25–27 Dec · 3 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore OttawaEvents, sights, food & souvenirs

Check event dates locally

Ottawa is Canada's capital, on the Ottawa River across from Gatineau, Quebec. Visitors come for Parliament Hill, national museums, the Rideau Canal and winter festivals.

Events in December

No major events on our calendar for December.

Coming up later

WinterludeDate variesDates vary; usually the first three weekends of February

A winter festival with ice sculptures, snow play areas and skating.

Why go: Dress for very cold weather and book accommodation early.

Where: Rideau Canal, downtown Ottawa and Gatineau

Canadian Tulip FestivalDate variesDates vary; usually May

Displays of tulips celebrating a gift from the Netherlands after the Second World War.

Why go: One of the prettiest times to visit.

Where: Commissioners Park and around the city

Canada DayEvery year1 July every year

National day celebrations with concerts and fireworks.

Why go: Very crowded; book accommodation well ahead.

Where: Downtown and around Parliament Hill