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When to go · Sarnia

Sarnia in September

Great month. Inside Sarnia's best window: Jun–Sep for beaches and the waterfront; Sep–Oct for quiet trails and lower room rates.

Key facts

Verdict
Great
Temperature
22°C (72°F) / 11°C (52°F)
average high / low
Rain days
10
Crowds
Medium
Canada overall
Prices
Medium
Canada overall

Verdict

GreatBest and avoid months for Sarnia

Inside Sarnia's best window: Jun–Sep for beaches and the waterfront; Sep–Oct for quiet trails and lower room rates.

Is another month better than September?

No other month rates higher than September for Sarnia in this guide.

Weather in September

Long-term averages
  • SarniaHighs around 22 °C (72 °F), lows around 11 °C (52 °F), rain on about 10 days

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.

Compare two months

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

  • Verdict

    Sep: Great

    Jun: Great

  • Daytime high

    Sep: 22 °C (72 °F)

    Jun: 24 °C (75 °F)

  • Night low

    Sep: 11 °C (52 °F)

    Jun: 13 °C (55 °F)

  • Rain days

    Sep: 10

    Jun: 10

  • Crowds

    Sep: Medium

    Jun: Medium

  • Prices

    Sep: Medium

    Jun: Medium

  • Festivals listed

    Sep: 0

    Jun: 1

September: Inside Sarnia's best window: Jun–Sep for beaches and the waterfront; Sep–Oct for quiet trails and lower room rates.

June: Inside Sarnia's best window: Jun–Sep for beaches and the waterfront; Sep–Oct for quiet trails and lower room rates.

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

What to pack

  • A warm layer for the evenings
  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Canada in September →