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When to go · St. Marys

St. Marys in August

Great month. Inside St. Marys's best window: Jun–Sep for the quarry and the trail; late Sep–Oct for the stone streets without the heat.

Key facts

Verdict
Great
Temperature
26°C (79°F) / 14°C (57°F)
average high / low
Rain days
10
Crowds
High
Canada overall
Prices
High
Canada overall

Verdict

GreatBest and avoid months for St. Marys

Inside St. Marys's best window: Jun–Sep for the quarry and the trail; late Sep–Oct for the stone streets without the heat.

Is another month better than August?

No other month rates higher than August for St. Marys in this guide.

Weather in August

Long-term averages
  • St. MarysHighs around 26 °C (79 °F), lows around 14 °C (57 °F), rain on about 10 days

Crowds and prices

Crowds · Canada overall
High
Prices · Canada overall
High

Canada overall: Warm and busy; wildfire risk highest in BC and Alberta.

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in St. Marys, side by side.

  • Verdict

    Aug: Great

    Jun: Great

  • Daytime high

    Aug: 26 °C (79 °F)

    Jun: 24 °C (75 °F)

  • Night low

    Aug: 14 °C (57 °F)

    Jun: 12 °C (54 °F)

  • Rain days

    Aug: 10 (better)

    Jun: 11

  • Crowds

    Aug: High

    Jun: Medium

  • Prices

    Aug: High

    Jun: Medium

  • Festivals listed

    Aug: 0

    Jun: 1

August: Inside St. Marys's best window: Jun–Sep for the quarry and the trail; late Sep–Oct for the stone streets without the heat.

June: Inside St. Marys's best window: Jun–Sep for the quarry and the trail; late Sep–Oct for the stone streets without the heat.

St. Marys: figures are long-term averages from this guide, not a forecast.

What to pack

  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Canada in August →