December 3 is generally a great time to visit Ottawa. While there is a slight chance of rain (28%), showers are usually brief. Expect comfortable 2°C weather. Ottawa is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Ottawa
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 3
"Cold & Crisp. Expect average highs of 1.5°C. 28% chance of snow."
What to Wear in Ottawa in December
Based on historical data for December 3, Ottawa typically experiences temperatures between -4.3°C and 1.5°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. With a 28% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Ottawa
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
1.5°C
Daytime Peak
Average Low
-4.3°C
Nighttime Low
Feels Like
-2.9°C
🥶 Slightly colder
Snow Chance
28%
Avg 2mm if it snows
Snowfall
1.0 cm
~28% chance
Pressure
1015.6 hPa
High volatility
Ottawa Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 97% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
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?
Dew Point
-1.9°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
07:25
☀️ Noon
11:54
🌇 Sunset
16:22
⏱️ Daylight
8h 56m
Wind Speed
17.1 km/h
Gentle breeze
Sunshine
3.6 hrs
Direct Sun (Cloud-free)
Humidity
78%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Ottawa
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Ottawa
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
Fish are active due to pressure changes.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Ottawa on December 3 averages 1.5°C with a 28% precipitation probability. Wedding/Outdoor Event Score: 14/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Ottawa Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
November 26
3.2°C • 29% rain
Score
24
November 27
2.9°C • 30% rain
Score
22
November 28
2.8°C • 33% rain
Score
20
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 3) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Ottawa Worth Visiting on December 3?
Planning a trip to Ottawa on December 3? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 1.5°C with a 28% 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 3 recorded in the last 30 years saw temperatures hit 7.2°C in 2022, while the coldest dropped to -11.7°C in 2025.