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Temperatures in September

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.

Max and Min Temperatures per Day

Daily Temperature in September in Charlottetown

This chart shows the daily maximum and minimum temperatures in degrees Celsius for Charlottetown in September. The red line indicates the max temperatures, and the blue line shows the minimums.

Start of September

The month of September starts in Charlottetown with mild temperatures, averaging around 21°C during the day and nights close to 11°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.

Mid-September

By mid-September, the average daytime temperature drops to around 17°C, with nights close to 9°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.

End of September

By the end of September, the average daytime temperature in Charlottetown will be around 17°C, with nights close to 7°C. A shower might show up, but overall the weather will be dry and sunny.

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Water temperature

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

Precipitation in September

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.

The average precipitation chance is 38% per day this month. The weather’s variable. There are also a few days with lower precipitation chances.

Precipitation Chance

Daily precipitation chance in percentages for Charlottetown in September

This chart shows the daily precipitation chance (in percentages) in September for Charlottetown. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.

Charlottetown in September

London
Temperature Average Temperature
18°C 20°C
Sun High Temp
22°C 22°C
Sun Low Temp
14°C 17°C
Rain Total Precipitation
83 mm 44 mm
Rain Rainy Days
11 days 8 days

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.

Is September a good time to visit Charlottetown?

Want nice weather? Then September is a great time to be in Charlottetown. You’ll have pleasant temperatures and not too much rain this month.

Temperature records for Charlottetown in September

With 28°C, Charlottetown hit the highest temperature in the last 10 years in September 2022. The lowest daytime temperature in this month was 5°C in 2018. The extreme night temperatures ranged from a low of -2°C to a high of 19°C.

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

Curious about the climate in other parts of Canada? Check out the weather and climate in places like Vancouver, Toronto, Niagara Falls, or have a look at other destinations in Canada.

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Daily Temperature in September in Charlottetown

This chart shows the average daily temperatures, both day and night, for each day in September in Charlottetown, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.

Daily Temperature in September in Charlottetown

Daily Precipitation in September in Charlottetown

The chart below shows the average daily precipitation in September for Charlottetown, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 11 days of rain in Charlottetown.

Daily Precipitation in September in Charlottetown

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.

Daily UV Index in September in Charlottetown

Temperature in September in Charlottetown Over the Years

This chart shows the average temperature in September in Charlottetown, measured in degrees Celsius, over the past years.

Temperature in September in Charlottetown Over the Years

Total Precipitation in September in Charlottetown Over the Years

This chart shows the average precipitation in September in Charlottetown, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.

Precipitation in September in Charlottetown Over the Years

Daily climate in September for Charlottetown

Click on a specific day in September for detailed info on the typical weather on that day in Charlottetown. Check out the historical temperatures and precipitation over the past 10 years on this day.

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.


Or check out the climate of Charlottetown for all months at once

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