December is one of the cooler months of the year in Saguenay, with average highs near -7.7°C and lows around -16.8°C (mean -12.2°C). It is about average for rainfall, averaging 68 mm of rainfall and 95% relative humidity across the period.
December is one of the cooler months of the year in Saguenay. Across 45 years of records, the warmest December in Saguenay was 2001 — when the month averaged -6.1°C — while the coldest was 1989 at -21.4°C. Typical December days reach -7.7°C with nights near -16.8°C. The long-term trend is warming, about 0.7°C per decade.
December is about average for rainfall in Saguenay, averaging 68 mm of rainfall. The wettest December on record was 2003 with 150 mm, while the driest was 1997 at 32 mm.
Relative humidity in Saguenay during December averages 95%. The most humid December was 1981 at 98%, and the least humid was 1982 at 90%.
December receives about 0.9 kWh/m²/day of solar energy in Saguenay. The sunniest Decembers were 2019, 2023 and 2024, among others at 1 kWh/m²/day, and the cloudiest was 1984 at 0.6.
Average wind speed in Saguenay during December is 1.8 m/s. The windiest December was 1982 at 2.1 m/s, while the calmest were 1993, 2010 and 2023, among others at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -14.5°C | -12.0°C | -12.1°C | -12.0°C | -10.1°C | +4.4°C |
| Avg High | -9.7°C | -7.2°C | -7.7°C | -7.7°C | -5.8°C | +3.9°C |
| Avg Low | -19.3°C | -16.8°C | -16.5°C | -16.4°C | -14.3°C | +5°C |
| Avg Rain | 68 mm | 57 mm | 77 mm | 72 mm | 64 mm | -3 mm |
December temperatures in Saguenay have risen by about 3.2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -47.1°C (1993) to a record high of 8.8°C (2023).
Rainfall in December is about average for rainfall, averaging 68 mm, with a wettest year of 150 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.6°C per decade while lows rose 0.9°C per decade, narrowing the gap between day and night.
A quieter season to visit Saguenay
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Saguenay. That said, December — with days averaging -7.7°C and nights around -16.8°C (mean -12.2°C) and moderate rainfall (68 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | -9.5°C | -14.2°C | -19.0°C | 2.2°C | -32.9°C | 54 mm | 95% | 1.9 m/s | — |
| 2024 | -6.2°C | -10.0°C | -13.8°C | 1.8°C | -27.9°C | 62 mm | 94% | 1.7 m/s | 1 |
| 2023 | -3.9°C | -7.9°C | -11.9°C | 8.8°C | -24.9°C | 49 mm | 91% | 1.5 m/s | 1 |
| 2022 | -4.7°C | -8.7°C | -12.7°C | 1.4°C | -25.3°C | 69 mm | 94% | 2 m/s | 0.9 |
| 2021 | -6.3°C | -11.1°C | -15.9°C | 3.2°C | -27.5°C | 70 mm | 91% | 2 m/s | 0.9 |
| 2020 | -4.5°C | -8.6°C | -12.6°C | 5.5°C | -32.6°C | 80 mm | 93% | 1.8 m/s | 0.8 |
| 2019 | -7.6°C | -12.0°C | -16.5°C | 1.5°C | -25.2°C | 56 mm | 96% | 1.8 m/s | 1 |
| 2018 | -8.5°C | -13.6°C | -18.7°C | 1.1°C | -34.2°C | 69 mm | 97% | 1.6 m/s | 0.9 |
| 2017 | -11.8°C | -15.9°C | -20.0°C | 0.8°C | -31.7°C | 63 mm | 96% | 1.9 m/s | 0.9 |
| 2016 | -8.2°C | -13.1°C | -17.9°C | 0.7°C | -32.6°C | 76 mm | 97% | 1.8 m/s | 0.9 |
| 2015 | -2.9°C | -6.4°C | -9.9°C | 3.4°C | -26.4°C | 89 mm | 95% | 1.7 m/s | 0.7 |
| 2014 | -6.2°C | -10.3°C | -14.5°C | 1.6°C | -28.5°C | 64 mm | 93% | 1.7 m/s | 0.9 |
| 2013 | -12.0°C | -16.5°C | -21.1°C | 0.7°C | -34.7°C | 64 mm | 97% | 1.6 m/s | 0.9 |
| 2012 | -6.8°C | -11.1°C | -15.4°C | 2.4°C | -29.9°C | 93 mm | 95% | 1.8 m/s | 0.8 |
| 2011 | -6.0°C | -10.5°C | -15.0°C | 2.6°C | -33.1°C | 54 mm | 92% | 1.8 m/s | 0.8 |
| 2010 | -6.7°C | -10.9°C | -15.0°C | 1.6°C | -25.2°C | 95 mm | 98% | 1.5 m/s | 0.8 |
| 2009 | -8.1°C | -11.7°C | -15.3°C | 0.1°C | -26.5°C | 86 mm | 96% | 2 m/s | 0.9 |
| 2008 | -8.8°C | -14.4°C | -20.0°C | 1.8°C | -31.4°C | 93 mm | 94% | 2 m/s | 0.9 |
| 2007 | -9.0°C | -13.5°C | -17.9°C | 1.1°C | -27.3°C | 78 mm | 97% | 1.8 m/s | 0.9 |
| 2006 | -4.5°C | -9.0°C | -13.5°C | 3.1°C | -27.5°C | 60 mm | 94% | 1.8 m/s | 0.8 |
| 2005 | -8.1°C | -12.7°C | -17.3°C | 1.3°C | -33.8°C | 65 mm | 95% | 1.8 m/s | 0.9 |
| 2004 | -9.6°C | -14.9°C | -20.1°C | 1.4°C | -34.0°C | 65 mm | 95% | 1.8 m/s | 1 |
| 2003 🌧️ | -7.3°C | -11.6°C | -15.9°C | 0.7°C | -28.7°C | 150 mm | 97% | 1.7 m/s | 0.9 |
| 2002 | -7.5°C | -11.9°C | -16.2°C | 0.0°C | -28.2°C | 46 mm | 96% | 1.7 m/s | 1 |
| 2001 🔥 | -2.9°C | -6.1°C | -9.3°C | 7.1°C | -14.9°C | 49 mm | 92% | 1.8 m/s | 0.9 |
| 2000 | -10.9°C | -15.5°C | -20.0°C | 0.9°C | -36.4°C | 80 mm | 97% | 1.9 m/s | 0.9 |
| 1999 | -6.4°C | -11.0°C | -15.5°C | 3.8°C | -35.3°C | 76 mm | 95% | 1.6 m/s | 0.8 |
| 1998 | -5.5°C | -10.9°C | -16.3°C | 3.6°C | -36.1°C | 66 mm | 95% | 1.9 m/s | 1 |
| 1997 | -8.5°C | -13.3°C | -18.1°C | -0.2°C | -33.9°C | 32 mm | 96% | 1.6 m/s | 0.9 |
| 1996 | -4.3°C | -8.5°C | -12.7°C | 2.0°C | -37.1°C | 73 mm | 96% | 1.8 m/s | 0.8 |
| 1995 | -10.7°C | -14.7°C | -18.7°C | -2.9°C | -27.1°C | 35 mm | 97% | 1.7 m/s | 1 |
| 1994 | -6.5°C | -10.9°C | -15.3°C | 1.6°C | -25.7°C | 51 mm | 97% | 1.6 m/s | 0.7 |
| 1993 | -7.4°C | -12.7°C | -17.9°C | 1.6°C | -47.1°C | 53 mm | 95% | 1.5 m/s | 0.8 |
| 1992 | -6.1°C | -10.8°C | -15.6°C | 2.5°C | -31.3°C | 50 mm | 94% | 1.8 m/s | 0.7 |
| 1991 | -9.4°C | -14.5°C | -19.6°C | 2.6°C | -35.0°C | 51 mm | 91% | 1.9 m/s | 0.9 |
| 1990 | -7.6°C | -12.8°C | -18.0°C | 0.7°C | -35.1°C | 87 mm | 97% | 1.8 m/s | 0.9 |
| 1989 ❄️ | -16.9°C | -21.4°C | -25.9°C | -2.4°C | -38.6°C | 42 mm | 97% | 1.8 m/s | 1 |
| 1988 | -9.2°C | -14.6°C | -20.0°C | 0.8°C | -33.4°C | 74 mm | 95% | 1.9 m/s | 0.8 |
| 1987 | -9.1°C | -13.2°C | -17.3°C | 0.0°C | -31.5°C | 50 mm | 96% | 1.5 m/s | 0.9 |
| 1986 | -8.4°C | -13.5°C | -18.6°C | 0.0°C | -33.2°C | 58 mm | 97% | 1.8 m/s | 0.8 |
| 1985 | -11.3°C | -16.2°C | -21.2°C | 0.9°C | -37.0°C | 49 mm | 95% | 1.6 m/s | 0.9 |
| 1984 | -7.5°C | -12.8°C | -18.0°C | 1.6°C | -39.2°C | 72 mm | 95% | 1.8 m/s | 0.6 |
| 1983 | -11.4°C | -17.1°C | -22.9°C | -1.2°C | -42.9°C | 109 mm | 97% | 1.9 m/s | — |
| 1982 | -6.0°C | -10.4°C | -14.9°C | 7.8°C | -28.8°C | 84 mm | 90% | 2.1 m/s | — |
| 1981 | -7.3°C | -11.3°C | -15.3°C | 0.4°C | -28.3°C | 70 mm | 98% | 1.5 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around -7.7°C with lows near -16.8°C (mean -12.2°C), based on 45 years of NASA POWER data.
December averages 68 mm of rainfall in Saguenay, about average for rainfall. The wettest on record was 150 mm in 2003.
The hottest December reached 8.8°C in 2023. The coldest dipped to -47.1°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 3.2°C. Daytime highs moved from -8.7°C to -6.1°C and overnight lows from -18.5°C to -14.7°C over the same span.
December is one of the cooler months of the year in Saguenay and about average for rainfall, so plan for around -7.7°C daytime highs and -16.8°C at night.
Not quite — December is the 3rd coolest month in Saguenay, averaging -12.2°C.
For December in Saguenay, pack warm layers and a jacket for chilly mornings, with typical highs of -7.7°C and lows of -16.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 95% — quite humid.
Average wind speed in December is 1.8 m/s. The windiest December on record averaged 2.1 m/s (1982).
The wettest December on record was 2003 with 150 mm. On average, December sees 68 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Saguenay behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
