City break

Quebec City weather in September

Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.

75

Holiday weather in September

Good

Best time to visit: May – September

What is the weather like in Quebec City in September?

In September, Quebec City is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 104 mm in total. All in all, September is a good month for a holiday in Quebec City.

September compared

How the weather changes from August to October. Tap a month to open it.

AugustAugSeptemberSepOctoberOct
Score747536
Day23°19°12°
Night15°11°5°
Sun7 h6 h4 h
Rain days131112

More details for September

Daylight
12 h 38 min06:21 – 18:59
UV index
5 · moderateclear sky, noon (estimate)All months
Muggy days
1 daydew point 18 °C or moreAll months
Wind
15 km/haverage daily peakAll months
Cloud cover
58 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC−4America/Toronto

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %48 %
  • Few rainy daysweight 30 %51 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in September

  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella

Quebec City in September: quick answers

Is Quebec City hot in September?

No. In September, Quebec City is mild: daytime highs average 19 °C and nights drop to about 11 °C.

Does it rain much in Quebec City in September?

Rain is frequent, with about 11 rainy days and 104 mm in total.

Quebec City month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences