30YearWeather
Ottawa, December 8
Ottawa street view during December
Historical Weather Analysis

Ottawa Weather on December 8 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

cloudy

-0.7°C

High

-7.3°C

Low

24%

Rain

🥶 Feels like -5.5°C (wind chill)

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

December 8 is generally a great time to visit Ottawa. While there is a slight chance of rain (24%), showers are usually brief. Expect comfortable -1°C weather. As it's peak season for Ottawa, we recommend booking your stay well in advance to secure the best rates.

Currency

CAD

$ Canadian dollar

Language

English

+1 more

Driving

Right side

Connect

The area codes for Ottawa are613and the ...

Safety

Very High Safety

GPI: 1.389

Ottawa Weather Forecast for December 8

"Cold & Crisp. Expect average highs of -0.7°C. 24% chance of snow."

What to Wear in Ottawa in December

Based on historical data for December 8, Ottawa typically experiences temperatures between -7.3°C and -0.7°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (24% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Ottawa

View Guide

Smart Suitcase

  • Heavy Coat
  • Scarf
  • Gloves

Average High

extreme-hot

-0.7°C

Daytime Peak

Average Low

extreme-cold

-7.3°C

Nighttime Low

Feels Like

partly-cloudy-day

-5.5°C

🥶 Slightly colder

Snow Chance

snow

24%

Avg 1.2mm if it snows

Snowfall

snow

1.0 cm

~24% chance

Pressure

pressure

1016.9 hPa

High volatility

Ottawa Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

70%Reliable

Based on 10 years of data

Temperature
±4.7°CVariable
Precipitation
12-50%Moderate

Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.

Sun Exposure

UV Index & Safety Guide

0Low
036811+

Protection Needed

SPF 15 for extended outdoor time

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

30Uncomfortable
TemperatureCold
HumidityMuggy
WindBreezy

Dew Point

-4.2°C

Dry air

Heat Stress

Low

No heat warning

😣 Best outdoor time:
Midday (11 AM - 3 PM) when warmest

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in Canada

Flight Traffic

High

87/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~154

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Ottawa

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

07:31

☀️ Noon

11:56

🌇 Sunset

16:21

⏱️ Daylight

8h 50m

Golden Hour
Morning07:31 - 08:19
15:32 - 16:21Evening

Wind Speed

wind

16.3 km/h

Gentle breeze

Sunshine

clear-day

3.8 hrs

Direct Sun (Cloud-free)

Humidity

humidity

77%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Ottawa

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Travel Health & Safety in Ottawa

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

81/100

Tourist Crowds

🟡 Busy

80/100

Price Level

💰💰💰 Expensive

95/100

Health & Wellbeing

Meteo-Health Forecast

70Score
Atmospheric Pressure1016.9 hPa
Volatility:High
Migraine RiskHigh

Rapid pressure changes detected. High risk for meteosensitive people.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexExcellent

Fish are active due to pressure changes.

Air Quality Forecast
59AQI
Moderate
PM2.5 Concentration21.9 µg/m³

Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):3
In Dec (30y):0
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Ottawa on December 8 averages -0.7°C with a 24% precipitation probability. Wedding/Outdoor Event Score: 5/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Ottawa Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2019
3.8°C
Coldest
2025
-19.2°C
Rainiest
2024
8.4mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

Compare Other Cities

Same date (December 8) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Ottawa Worth Visiting on December 8?

Planning a trip to Ottawa on December 8? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging -0.7°C with a 24% historical precipitation risk.

✈️ Travel Logistics: Approximately 154 landing slots available daily during this period, indicating manageable crowd levels.

💉 Health Advisory: 6 vaccinations are recommended for Canada, including COVID-19.

📊 Historical Extremes: The hottest December 8 recorded in the last 30 years saw temperatures hit 3.8°C in 2019, while the coldest dropped to -19.2°C in 2025.

Ottawa Weather FAQ