Canada weather

Our guide to the weather in Canada during September

8

Average high

2

UV Index

91mm

Monthly rainfall

77%

Humidity

Canada is a great tourist destination for Americans, offering beautiful landscapes, diverse culture, and plenty of activities throughout the year, especially in September when the weather is still mild. We've looked at the most up-to-date weather data for Canada, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Canada weather in September.

What's the temperature like in Canada during September?

The temperature reaches around 8℃ during the daytime in September, falling away to 5℃ at night. The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.

Does it snow in Canada during September?

Possibly. There's a chance of snow during September but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.

Does it rain in Canada during September?

On average, there will be 8 rainy days during the month, amounting to 91.4mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. You're not likely to see a thunderstorm during your trip.

Is it windy in Canada during September?

Expect moderate breeze becoming stronger at times during September, with occasional gusts up to 23mph. With cool air temperatures, any breeze will feel cold.

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Weather in Canada

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January
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February
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March
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April
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May
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August
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September
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