30YearWeather
Ottawa, September 7
Ottawa street view during September
Historical Weather Analysis

Ottawa Weather on September 7 — Best Time to Visit?

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

cloudy

22.4°C

High

13.7°C

Low

25%

Rain

☀️ Feels like 22.8°C

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

September 7 is generally a great time to visit Ottawa. While there is a slight chance of rain (25%), showers are usually brief. Expect comfortable 22°C weather. Ottawa is currently in its most popular travel window, meaning vibrant crowds and premium pricing.

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 September 7

"Mild & Comfortable. Expect average highs of 22.4°C. 25% chance of rain."

What to Wear in Ottawa in September

Based on historical data for September 7, Ottawa typically experiences temperatures between 13.7°C and 22.4°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (25% 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

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

22.4°C

Daytime Peak

Average Low

extreme-cold

13.7°C

Nighttime Low

Feels Like

partly-cloudy-day

22.8°C

☀️ Feels accurate

Rain Chance

rain

25%

Avg 1.4mm if it rains

Cloud Cover

cloudy

53%

Overcast

Pressure

pressure

1016.2 hPa

Medium volatility

Ottawa Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

64%Moderately Predictable

Based on 10 years of data

Temperature
±4.5°CVariable
Precipitation
13-60%Unpredictable

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

Sun Exposure

UV Index & Safety Guide

2.7Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

Type I-II

🔴 30 min to burn

Type III-IV

🟡 45 min to burn

Type V-VI

🟢 75 min to burn

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

Outdoor Comfort

How pleasant is it outside?

82Excellent
TemperatureWarm
HumidityMuggy
WindLight Breeze

Dew Point

17.7°C

Noticeable

Heat Stress

Low

No heat warning

😊 Best outdoor time:
Any time during daylight hours

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in Canada

Flight Traffic

High

99/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~175

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Ottawa

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

05:32

☀️ Noon

12:02

🌇 Sunset

18:31

⏱️ Daylight

12h 59m

Golden Hour
Morning05:32 - 06:12
17:52 - 18:31Evening

Wind Speed

wind

14.1 km/h

Gentle breeze

Sunshine

clear-day

9.5 hrs

Direct Sun (Cloud-free)

Humidity

humidity

75%

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

80/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1016.2 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

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 Sep (30y):0
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Ottawa on September 7 averages 22.4°C with a 25% precipitation probability. Wedding/Outdoor Event Score: 97/100."

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

Ottawa Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2016
29.7°C
Coldest
2024
9.4°C
Rainiest
2024
24.1mm

Compare Other Cities

Same date (September 7) in other destinations

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📍 Is Ottawa Worth Visiting on September 7?

Planning a trip to Ottawa on September 7? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 22.4°C with a 25% historical precipitation risk.

✈️ Travel Logistics: Approximately 175 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 September 7 recorded in the last 30 years saw temperatures hit 29.7°C in 2016, while the coldest dropped to 9.4°C in 2024.

Ottawa Weather FAQ