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The weather in September in Charlottetown

It's cool to moderate in September in Charlottetown with an average temperature of 18°C. Temperatures this month range from a low of 14°C to a high of 22°C. At night, you can expect temperatures between 5°C and 12°C.

Looking for great weather? September is a good time to be in Charlottetown. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Charlottetown, Canada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 28°C in 2022, Charlottetown reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 5°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 19°C.

Water temperature

The water temperature at Charlottetown is 19°C this month. Refreshing if you feel like a swim.

Rainfall amount

In September, there is an average of 83 mm of precipitation, spread over 11 days. The wind speed is around 3 Bft, mostly coming from the Southwest.

Daily weather in September for Charlottetown

Click on any day in September to get detailed info about the usual weather on that day in Charlottetown. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Charlottetown New York
Average temperature 18°C 27°C
Max. temperature 22°C 31°C
Min. temperature 5°C -5°C
Total precipitation 83 mm 57 mm
Rainy days 11 days 9 days

Start of September

The month of September starts in Charlottetown with mild temps, averaging around 21°C during the day and nights around 11°C.

Mid September

By mid-September, daytime temps drop to around 17°C, with nights around 9°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in Charlottetown is around 17°C, while nighttime temps are about 7°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to Charlottetown

UV index

The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Charlottetown for all months and discover the best travel time

Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.

Temperature charts

These charts show the average temperatures in September in Charlottetown, Canada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Charlottetown

Temperature in September in Charlottetown over the years

Precipitation charts

These charts show the average amount of precipitation in September in Charlottetown, Canada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Charlottetown

Total precipitation in September in Charlottetown over the years

Daily UV index in September in Charlottetown

This chart shows the average daily UV index in September in Charlottetown, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Charlottetown

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Average weather in Charlottetown by month

Click on a month below to see detailed weather info for Charlottetown. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.