Terrebonne (QC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Terrebonne.
Climate overview of Terrebonne
The climate in Terrebonne, Quebec, Canada, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in July to -4°C (25°F) in January.
The city receives considerable rain/snowfall, with around 1141 mm (45 in) annually. October is the wettest month. It has warm summers and very cold winters. The sunniest month is July, with 9.1 hours of sunshine per day on average.
Terrebonne Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Terrebonne - and find the best time to visit.
Monthly Temperature in Terrebonne
In Terrebonne, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in July to a very cold -4°C (25°F) in the coolest month, January.
Nights vary from 16°C (61°F) in July to around -15°C (5°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Terrebonne
Terrebonne experiences significant rain/snowfall throughout the year, averaging 1141 mm (45 in) of precipitation annually. Precipitation levels in Terrebonne remain relatively steady throughout the year. October has the most rain, with 111 mm (4.4 in) over 13 days. In the driest month February, this drops slightly to 73 mm (2.9 in), making the city's climate fairly predictable. For more details, please visit our Terrebonne 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 Terrebonne
For those who appreciate different seasons, Terrebonne 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
Water Temperature in Terrebonne
The mean water temperature over the year ranges from 3°C (37°F) in February to 21°C (70°F) in August.
Water temperature over the year
Humidity in Terrebonne by Month
The relative humidity is high throughout the year in Terrebonne.
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
Wind Speed in Terrebonne
The average wind speed over the year ranges from 5 m/s (10 knots) to 7 m/s (14 knots). It is lower in June, July, August and September and higher in January, February, March and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Terrebonne
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 and September
- Warmest weather: July and August
- Most sunshine: July
- Best for swimming: August and September.
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -15°C (5°F).
Frequently asked questions about the climate in Terrebonne
What is the best time to visit Terrebonne?
May, July and September typically offer the most optimal weather in Terrebonne. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Terrebonne has warm summers and very cold winters.
What temperatures can I expect in Terrebonne?
Daytime highs range from -4°C (25°F) in January to 27°C (81°F) in July. Nighttime lows range from -15°C (5°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Terrebonne get?
Annual rainfall is around 1141 mm (45 in). October is the wettest month with 111 mm (4.4 in), while February is the driest with 73 mm (2.9 in).
How sunny is Terrebonne?
Terrebonne 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, Terrebonne enjoys abundant sunshine.
Terrebonne 3-Day Forecast
Terrebonne on the map
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Popular this month
Where to go in September - average daytime high across popular destinations.
Toronto
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20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) 
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