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Average weather for Québec in September

It's pleasantly warm in September in Québec with an average temperature of 20°C. Temperatures this month range from a low of 15°C to a high of 24°C. At night, you can expect temperatures between 7°C and 14°C.

Daily Temperature in September in Québec

Start of September

The month of September starts in Québec with warm temps, averaging around 23°C during the day and nights around 13°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.

Mid September

By mid-September, daytime temps drop to around 21°C, with nights around 11°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 Québec is around 19°C, while nighttime temps are about 9°C. A shower might pop up, but overall, the weather will be dry and sunny.

In September, there is an average of 80 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the South.

Québec in September

New York
Temperature Average temperature
20°C 27°C
Sun Max. temperature
24°C 31°C
Sun Min. temperature
15°C -5°C
Rain Total precipitation
80 mm 57 mm
Rain Rainy days
9 days 9 days

UV index

The UV index is a maximum of 7 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 Québec?

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

Temperature records

With 31°C in 2023, Québec reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 9°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of -4°C to a highest value of 21°C.

Check out the climate of Québec 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.

Daily Temperature in September in Québec

This chart shows the average daily high and low temperatures in September for Québec, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in September in Québec

Daily Precipitation in September in Québec

The chart below shows the average daily precipitation in September for Québec, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 9 days of precipitation in Québec.

Daily Precipitation in September in Québec

Daily UV index in September in Québec

This chart shows the average daily UV index in September in Québec, 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 Québec

Temperature in September in Québec over the years

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

Temperature in September in Québec Over the Years

Total precipitation in September in Québec over the years

This chart shows the average precipitation in September in Québec, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in September in Québec over the years

Daily weather in September for Québec

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

Weather experiences in September in Québec

Have you been to Québec in September?

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Average weather in Québec by month

Click on a month below to see detailed weather info for Québec. 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 Québec for all months at once

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