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Saint-Hyacinthe (QC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saint-Hyacinthe.
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Climate overview of Saint-Hyacinthe
Saint-Hyacinthe, Quebec, Canada, sees big temperature differences between seasons, with July peaking at 27°C (81°F) and January dropping to -4°C (25°F).
The city receives considerable rain/snowfall, with around 1192 mm (47 in) annually. June is the wettest month. It has warm summers and very cold winters. The most sunshine falls in July, with an average of 9.1 hours of daily sunshine.
Saint-Hyacinthe Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint-Hyacinthe - and find the best time to visit.
Monthly Temperature in Saint-Hyacinthe
Visitors to Saint-Hyacinthe can expect significant temperature changes throughout the year. 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 15°C (59°F) in July to around -14°C (7°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saint-Hyacinthe
Saint-Hyacinthe is known for its substantial rain/snowfall, with annual precipitation reaching 1192 mm (47 in). Precipitation levels in Saint-Hyacinthe remain relatively steady throughout the year. June has the most rain, with 119 mm (4.7 in) over 13 days. In the driest month February, this drops slightly to 74 mm (2.9 in), making the city's climate fairly predictable. For more details, please visit our Saint-Hyacinthe 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 Saint-Hyacinthe
For those who appreciate different seasons, Saint-Hyacinthe 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
Data from: Montréal, Canada (50 KM, 31 Miles).
Daily hours of sunshine
Data from: Montréal, Canada (50 KM, 31 Miles).
Daily percentage of sunshine
Data from: Montréal, Canada (50 KM, 31 Miles).
Humidity in Saint-Hyacinthe by Month
The relative humidity is high throughout the year in Saint-Hyacinthe.
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
Data from: Montréal, Canada (50 KM, 31 Miles).
Best Time to Visit Saint-Hyacinthe
Conditions in Saint-Hyacinthe are generally most comfortable in May, June, July, August and September. They are typically least comfortable in January, February, March, April, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very cold
Feb
very cold
Mar
cold
Apr
wet
May
very good
Jun
very good
Jul
very good
Aug
very good
Sep
very good
Oct
mixed
Nov
cold
Dec
cold
- Best overall: May, June, 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 -14°C (7°F).
Frequently asked questions about the climate in Saint-Hyacinthe
What is the best time to visit Saint-Hyacinthe?
May, June, July, August and September typically offer the most optimal weather in Saint-Hyacinthe. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Saint-Hyacinthe has warm summers and very cold winters.
What temperatures can I expect in Saint-Hyacinthe?
Daytime highs range from -4°C (25°F) in January to 27°C (81°F) in July. Nighttime lows range from -14°C (7°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Saint-Hyacinthe get?
Annual rainfall is around 1192 mm (47 in). June is the wettest month with 119 mm (4.7 in), while February is the driest with 74 mm (2.9 in).
How sunny is Saint-Hyacinthe?
Saint-Hyacinthe 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, Saint-Hyacinthe enjoys abundant sunshine.
Saint-Hyacinthe 3-Day Forecast
Saint-Hyacinthe on the map
Saint-Hyacinthe is highlighted - select any city to see its climate.
Popular in September
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Toronto
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