When to go · Ottawa
Ottawa in July
Avoid month. Listed as a month to avoid: Jan–Feb unless you want deep cold and ice; Jul–Aug for heat and humidity.
Key facts
- Verdict
- Avoid
- Temperature
- 27°C (81°F)81°F (27°C) / 16°C (61°F)61°F (16°C)
- average high / low
- Rain days
- 11
- Crowds
- High
- Canada overall
- Prices
- High
- Canada overall
Verdict
Listed as a month to avoid: Jan–Feb unless you want deep cold and ice; Jul–Aug for heat and humidity.
Is another month better than July?
July is rated avoid. These months rate higher:
Weather in July
- OttawaHighs around 27 °C (81 °F), lows around 16 °C (61 °F), rain on about 11 daysHighs around 81 °F (27 °C), lows around 61 °F (16 °C), rain on about 11 days
- Ontario and Great Lakes, Canada · Toronto, Ottawa, Niagara Falls, Algonquinhot
Humid summers, snowy winters; late September–October foliage in Algonquin.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Canada Day big impact
1 Jul · Canada
Fireworks in Ottawa and cities; Québec's moving day is the same date.
Crowds and prices
- Crowds · Canada overall
- High
- Prices · Canada overall
- High
Canada overall: Peak season: Rockies lodging sold out, Canada Day on 1 July, Calgary Stampede. Wildfire smoke possible — check.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Ottawa, side by side.
Verdict
Jul: Avoid
May: Great (better)
Daytime high
Jul: 27 °C (81 °F)81 °F (27 °C)
May: 19 °C (66 °F)66 °F (19 °C)
Night low
Jul: 16 °C (61 °F)61 °F (16 °C)
May: 8 °C (46 °F)46 °F (8 °C)
Rain days
Jul: 11 (better)
May: 12
Crowds
Jul: High
May: Medium
Prices
Jul: High
May: Medium
Festivals listed
Jul: 1
May: 0
July: Listed as a month to avoid: Jan–Feb unless you want deep cold and ice; Jul–Aug for heat and humidity.
May: Inside Ottawa's best window: May–Jun, Sep–early Oct.
Ottawa: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast
- Light, breathable clothes, a sun hat and sunscreen