How warm is it in Quebec City in August?

Daytime highs averaged 21.9 °C, night-time lows 13.1 °C. The highest value of the past 10 years was 28.8 °C (20 Aug 2021), the lowest 5.2 °C (27 Aug 2020).

How often does it rain in Quebec City in August?

On average there were 17.4 rain days (at least 1 mm) with 120 mm of precipitation in total.

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Quebec City weather in August: temperature & rain

Photo: Wilfredor · CC0

🇨🇦 Weather in Quebec City in August

This is what the weather in Quebec City (Quebec, Canada) was like in August over the years 2017–2026.

Key facts at a glance

Prevailing weather: Light rain

Avg. daytime high

21.9 °C

20.1 °C – 23.7 °C

Avg. night-time low

13.1 °C

11.8 °C – 15.1 °C

Avg. rain days in period

17.4

56 % of days · ≥ 1.0 mm

Avg. precipitation in period

120 mm

66.9 mm – 167 mm

Avg. cloud cover

59 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

–

No sea nearby – no sea temperature.

Extremes: Highest temperature 28.8 °C (20 Aug 2021) · Lowest temperature 5.2 °C (27 Aug 2020) · Avg. daily peak wind 13 km/h

Weather mix of all days

43Sunny
63Partly cloudy
18Cloudy
100Light rain
74Rain

Summary

On average 21.9 °C during the day and 13.1 °C at night.
On average 17.4 rain days (Rain day = at least 1.0 mm of precipitation) with 120 mm of precipitation in total.
Prevailing weather: Light rain.
Warmest year: 2021 (avg. 23.7 °C), coolest: 2017 (avg. 20.1 °C).
Wettest year: 2023 (167 mm), driest: 2021 (66.9 mm).
Extremes: 28.8 °C on 20 Aug 2021 and 5.2 °C on 27 Aug 2020.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max22.5°Avg. min13.5°
Rain days
19 Rain days
Precipitation
120 mm
Avg. cloud cover
–
Sea temperature
–
Max 26.9 °C · Min 8.1 °C
2025
Avg. max22.0°Avg. min12.2°
Rain days
13 Rain days
Precipitation
73.2 mm
Avg. cloud cover
43 % cloudy
Sea temperature
–
Max 28.5 °C · Min 5.5 °C
2024
Avg. max21.9°Avg. min13.4°
Rain days
19 Rain days
Precipitation
129 mm
Avg. cloud cover
62 % cloudy
Sea temperature
–
Max 27.8 °C · Min 8.5 °C
2023
Avg. max20.7°Avg. min12.2°
Rain days
19 Rain days
Precipitation
167 mm
Avg. cloud cover
68 % cloudy
Sea temperature
–
Max 23.8 °C · Min 7.1 °C
2022
Avg. max22.1°Avg. min13.3°
Rain days
18 Rain days
Precipitation
146 mm
Avg. cloud cover
67 % cloudy
Sea temperature
–
Max 27.4 °C · Min 8.7 °C
2021
Avg. max23.7°Avg. min15.1°
Rain days
16 Rain days
Precipitation
66.9 mm
Avg. cloud cover
63 % cloudy
Sea temperature
–
Max 28.8 °C · Min 9.7 °C
2020
Avg. max21.1°Avg. min12.8°
Rain days
16 Rain days
Precipitation
135 mm
Avg. cloud cover
54 % cloudy
Sea temperature
–
Max 26.3 °C · Min 5.2 °C
2019
Avg. max21.4°Avg. min12.7°
Rain days
20 Rain days
Precipitation
137 mm
Avg. cloud cover
56 % cloudy
Sea temperature
–
Max 25.3 °C · Min 8.4 °C
2018
Avg. max23.4°Avg. min14.4°
Rain days
17 Rain days
Precipitation
125 mm
Avg. cloud cover
62 % cloudy
Sea temperature
–
Max 26.4 °C · Min 7.9 °C
2017
Avg. max20.1°Avg. min11.8°
Rain days
17 Rain days
Precipitation
104 mm
Avg. cloud cover
59 % cloudy
Sea temperature
–
Max 24.9 °C · Min 7.1 °C

Frequently asked questions

How warm is it in Quebec City in August?: Daytime highs averaged 21.9 °C, night-time lows 13.1 °C. The highest value of the past 10 years was 28.8 °C (20 Aug 2021), the lowest 5.2 °C (27 Aug 2020).
How often does it rain in Quebec City in August?: On average there were 17.4 rain days (at least 1 mm) with 120 mm of precipitation in total.

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)