Thornhill weather in September (Ontario, Canada)

How's the weather trend in Thornhill as September approaches? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

The weather in Thornhill during September is typically perfect, with high temperatures and moderate rainfall. The temperature during the day can rise to approximately 23°C. At night, it falls to around 12°C.

Precipitation

Thornhill in September usually receives moderate rainfall, averaging around 79 mm for the month. Historically, approximately 10 days this month are expected to have rain.

Average sunshine

Expect a lot of sunshine this month, with about 195 hours of sunny weather. The abundant sunlight creates a lively and bright atmosphere.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. June, July, August and September generally stand out with the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Thornhill climate page with graphs.

 

Thornhill, monthly averages in September

Min Temperature 12°C  

Max Temperature 23°C  

Chance of Rain 32%  

Precipitation 79 mm  

Rainy days 10 days  

Humidity 87% *  

Sunshine 195 hours *  

Percentage Sunshine 52% *  

Data from: Toronto, Canada (16 KM, 10 Miles).

Where to go in Canada in September

Find out more about the weather in Canada and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Thornhill, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Thornhill.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.