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When to go · Markham

Markham in September

Great month. Inside Markham's best window: May–Oct; late Sep–mid Oct for the Unionville streets.

Key facts

Verdict
Great
Temperature
21°C (70°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 Markham

Inside Markham's best window: May–Oct; late Sep–mid Oct for the Unionville streets.

Is another month better than September?

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

Weather in September

Long-term averages
  • MarkhamHighs around 21 °C (70 °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 Markham, side by side.

  • Verdict

    Sep: Great

    May: Great

  • Daytime high

    Sep: 21 °C (70 °F)

    May: 19 °C (66 °F)

  • Night low

    Sep: 11 °C (52 °F)

    May: 8 °C (46 °F)

  • Rain days

    Sep: 10 (better)

    May: 12

  • Crowds

    Sep: Medium

    May: Medium

  • Prices

    Sep: Medium

    May: Medium

  • Festivals listed

    Sep: 0

    May: 0

September: Inside Markham's best window: May–Oct; late Sep–mid Oct for the Unionville streets.

May: Inside Markham's best window: May–Oct; late Sep–mid Oct for the Unionville streets.

Markham: 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 →