When to go · Ottawa
Ottawa in September
Great month. Inside Ottawa's best window: May–Jun, Sep–early Oct.
Key facts
- Verdict
- Great
- Temperature
- 21°C70°F / 10°C50°F
- average high / low
- Rain days
- 11
- Crowds
- Medium
- Canada overall
- Prices
- Medium
- Canada overall
Verdict
GreatBest and avoid months for Ottawa
Inside Ottawa's best window: May–Jun, Sep–early Oct.
Weather in September
- OttawaHighs around 21 °C, lows around 10 °C, rain on about 11 daysHighs around 70 °F, lows around 50 °F, rain on about 11 days
- Ontario and Great Lakes, Canada · Toronto, Ottawa, Niagara Falls, Algonquinbest weather
Humid summers, snowy winters; late September–October foliage in Algonquin.
Crowds and prices
- Crowds · Canada overall
- Medium
- Prices · Canada overall
- Medium
Canada overall: After Labour Day crowds drop; larches turn gold in the Rockies late in the month.
What to pack
- A warm layer for the evenings
- A rain jacket or umbrella and shoes that dry fast