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Weather in September in Thousand Islands National Park

Thinking about venturing to Thousand Islands National Park this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Thousand Islands National Park in September?

Thousand Islands National Park is a region in Canada. September in Thousand Islands National Park generally has pleasant temperatures, with moderate precipitation.

Temperatures

You can expect pleasant maximum daytime temperatures of around 22°C and nighttime temperatures around 12°C in Brockville.

Precipitation

September is a moderate rainy month with an average rainfall of around 85 mm in Brockville.

Average sunshine

Most cities enjoy a balanced amount of sunshine, with around 165 hours of sunlight anticipated in Brockville. This ensures the days are neither too dim nor excessively sunny.

For a closer look at September's conditions in Thousand Islands National Park, see the map below. For a more detailed look at Thousand Islands National Park's yearly weather, check out our Thousand Islands National Park climate page.

Where to go in Thousand Islands National Park in September

Find more information for the most popular destinations in the Thousand Islands National Park on the map below. Click on a destination dot for more detailes.

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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).

Popular destinations

What is the weather like in September for the most popular destinonation in Thousand Islands National Park?

Brockville

In September Brockville generally has pleasant temperatures with maximum daytime temperatures around 22°C, minimum nighttime temperatures around 12°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Brockville
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
26°C 
16°C 
241 hours 
93 mm 
13 days 
22°C 
12°C 
165 hours 
85 mm 
12 days 
October   >> October
>>  
14°C 
6°C 
141 hours 
119 mm 
16 days 
Climate in Brockville

Is your destination not in the list? Have a look at other destinations in Thousand Islands National Park, in Canada.

Is September the best time to visit Thousand Islands National Park?

We believe that September is one of the best times to visit Thousand Islands National Park with overall perfect weather in Brockville. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in May, July, August and September offering mostly perfect weather in Brockville. The weather in January, February, March, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Thousand Islands National Park. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Canada? Get detailed 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.