Saint Catharines weather in September (Ontario, Canada)

Can you expect sunny skies in Saint Catharines in September? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

Expect perfect weather in Saint Catharines during September, which means high temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 22°C. But by evening, they drop to around 16°C.

Precipitation

Saint Catharines in September usually receives moderate rainfall, averaging around 93 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 10 days of the month will see rainfall.

Average sunshine

The days are predominantly sunny, with an estimated total of around 206 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

So this is a great month to visit if you prefer dry days with pleasant temperatures. July, August and September typically offer the most optimal weather. In contrast, January, February, March, April, November and December tend to have less optimal conditions.

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

 

Saint Catharines, monthly averages in September

Min Temperature 16°C  

Max Temperature 22°C  

Chance of Rain 34%  

Precipitation 93 mm  

Rainy days 10 days  

Humidity 74% *  

Sunshine 206 hours *  

Percentage Sunshine 55% *  

Data from: Buffalo, the United States of America (42 KM, 26 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 Saint Catharines, 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.

Cycling

9/10

Walking

9/10

Barbeque

8/10

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 Saint Catharines.

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.