Joliette (QC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Joliette.
Climate overview of Joliette
Temperatures in Joliette, Quebec, Canada, vary greatly throughout the year. July is the hottest month at 27°C (81°F), while January is the coldest at -5°C (23°F).
The city receives considerable rain/snowfall, with around 1103 mm (43 in) annually. October is the wettest month. It has warm summers and very cold winters. July is the sunniest month, averaging 9.1 hours of sunshine per day.
Joliette Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Joliette - and find the best time to visit.
Monthly Temperature in Joliette
The climate in Joliette is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in July to a very cold -5°C (23°F) in the coolest month, January.
Nights vary from 15°C (59°F) in July to around -16°C (3°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Joliette
Joliette has a notably wet climate with abundant precipitation, recording 1103 mm (43 in) of rain/snowfall per year. Precipitation levels in Joliette remain relatively steady throughout the year. October has the most rain, with 107 mm (4.2 in) over 12 days. In the driest month February, this drops slightly to 72 mm (2.8 in), making the city's climate fairly predictable. For more details, please visit our Joliette Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Joliette
For those who appreciate different seasons, Joliette serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.1 hours of sunshine daily, and embrace the darker days in December, offering only 2.7 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Joliette by Month
The relative humidity is high throughout the year in Joliette.
The city experiences its highest humidity in December, reaching 71%. In May, the humidity drops to its lowest level at 51%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Joliette
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -16°C (3°F).
Frequently asked questions about the climate in Joliette
What is the best time to visit Joliette?
May, July, August and September typically offer the most optimal weather in Joliette. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Joliette has warm summers and very cold winters.
What temperatures can I expect in Joliette?
Daytime highs range from -5°C (23°F) in January to 27°C (81°F) in July. Nighttime lows range from -16°C (3°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Joliette get?
Annual rainfall is around 1103 mm (43 in). October is the wettest month with 107 mm (4.2 in), while February is the driest with 72 mm (2.8 in).
How sunny is Joliette?
Joliette receives around 2,042 hours of sunshine per year. July is the sunniest month with 272 hours, while December is the cloudiest with just 80 hours. Overall, Joliette enjoys abundant sunshine.
Joliette 3-Day Forecast
Joliette on the map
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