Temperature in Thousand Islands National Park in September
Thousand Islands National Park is a region in Canada. September is generally a pleasant month with maximum daytime temperatures around 22°C and nighttime temperatures around 12°C in Brockville.
What is the temperature of the different cities in Thousand Islands National Park in September?
Explore the map below to discover average September temperatures at the top destinations in Thousand Islands National Park. For a deeper dive, simply click on any destination dot.
Select a Month of Interest
Check the weather conditions for any month in Thousand Islands National Park.
For a detailed overview of the weather over the year and the best time to visit Canada, check out our Thousand Islands National Park's climate page.
Interested in more climate information?
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.