Saint Catharines
Canada
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Saint Catharines, Canada

January, the same as December, in Saint Catharines, Canada, is a freezing cold winter month, with average temperature fluctuating between -7.4°C (18.7°F) and -0.3°C (31.5°F). With an average high-temperature of -0.3°C (31.5°F) and an average low-temperature of -7.4°C (18.7°F), January is the coldest month. Weather in January »

The last month of the winter, February, is a cold month in Saint Catharines, Canada, with average temperature ranging between min -6.8°C (19.8°F) and max 0.9°C (33.6°F). In Saint Catharines, Canada, the average high-temperature is relatively the same as in January - a cold 0.9°C (33.6°F). Weather in February »

The first month of the spring, March, is also a wintry month in Saint Catharines, Canada, with temperature in the range of an average high of 5.5°C (41.9°F) and an average low of -3.3°C (26.1°F). In Saint Catharines, the average high-temperature slightly increases, from 0.9°C (33.6°F) in February, to a still wintry 5.5°C (41.9°F). Weather in March »

April is a cool spring month in Saint Catharines, Canada, with temperature in the range of an average high of 12.4°C (54.3°F) and an average low of 2.2°C (36°F). In Saint Catharines, Canada, the average high-temperature increases, from a wintry 5.5°C (41.9°F) in March, to a fresh 12.4°C (54.3°F). Weather in April »

The last month of the spring, May, is a comfortable month in Saint Catharines, Canada, with temperature in the range of an average low of 7.9°C (46.2°F) and an average high of 19.5°C (67.1°F). In Saint Catharines, the average high-temperature in May increases, from a cool 12.4°C (54.3°F) in April, to an enjoyable 19.5°C (67.1°F). Weather in May »

June, the first month of the summer, in Saint Catharines, is a warm month, with average temperature ranging between max 24.4°C (75.9°F) and min 13.4°C (56.1°F). In Saint Catharines, the average high-temperature marginally rises, from an enjoyable 19.5°C (67.1°F) in May, to a moderately hot 24.4°C (75.9°F). Weather in June »

July, the same as June, is a moderately hot summer month in Saint Catharines, Canada, with average temperature varying between 27.1°C (80.8°F) and 16.6°C (61.9°F). The warmest month is July, with an average high-temperature of 27.1°C (80.8°F) and an average low-temperature of 16.6°C (61.9°F). The average heat index in July is evaluated at 28°C (82.4°F). Weather in July »

August, the last month of the summer, in Saint Catharines, is also a moderately hot month, with average temperature ranging between max 25.8°C (78.4°F) and min 15.7°C (60.3°F). In Saint Catharines, the average high-temperature is practically the same as in July - a still moderately hot 25.8°C (78.4°F). Weather in August »

September, the first month of the autumn, in Saint Catharines, is still a pleasant month, with average temperature varying between 21.6°C (70.9°F) and 11.6°C (52.9°F). In September, the average high-temperature marginally drops, from a moderately hot 25.8°C (78.4°F) in August, to an agreeable 21.6°C (70.9°F). Weather in September »

October, like September, is a moderate autumn month in Saint Catharines, Canada, with temperature in the range of an average low of 5.6°C (42.1°F) and an average high of 15.1°C (59.2°F). In Saint Catharines, Canada, the average high-temperature decreases, from a pleasant 21.6°C (70.9°F) in September, to a moderate 15.1°C (59.2°F). Weather in October »

The last month of the autumn, November, is another chilly month in Saint Catharines, Canada, with temperature in the range of an average low of 0.8°C (33.4°F) and an average high of 8.4°C (47.1°F). In Saint Catharines, the average high-temperature decreases, from a moderate 15.1°C (59.2°F) in October, to a frosty 8.4°C (47.1°F). Weather in November »

The first month of the winter, December, is also a wintry month in Saint Catharines, Canada, with average temperature varying between -4.2°C (24.4°F) and 2.5°C (36.5°F). In Saint Catharines, Canada, the average high-temperature in December drops, from a chilly 8.4°C (47.1°F) in November, to a cold 2.5°C (36.5°F). Weather in December »

What is the coldest month in Saint Catharines?

January is the coldest month in Saint Catharines, with an average high-temperature of -0.3°C (31.5°F) and an average low-temperature of -7.4°C (18.7°F).

What is the most humid month in Saint Catharines?

January is the most humid month in Saint Catharines, Canada, with an average relative humidity of 73%.

How many days does it rain in Saint Catharines?

Throughout the year, there are 117.2 rainfall days, and 754.3mm (29.7") of precipitation is accumulated.

When does it snow in Saint Catharines?

Months with snowfall in Saint Catharines, Canada, are January through May, October through December.

How many days does it snow in Saint Catharines?

In Saint Catharines, Canada, during the entire year, snow falls for 42.9 days, and aggregates up to 1371mm (54") of snow.

What is the snowiest month in Saint Catharines?

January is the month with the most snowfall. Snow falls for 12.3 days and accumulates 386mm (15.2") of snow.

What is the month with the least sunshine in Saint Catharines?

The month with the least sunshine is January, with an average of 2.1h of sunshine.

What is the driest month in Saint Catharines?

February is the month with the least rainfall. Rain falls for 5.8 days and accumulates 28.9mm (1.1") of precipitation.

What month is the sea coldest in Saint Catharines?

February is the month with the coldest seawater, with an average sea temperature of 1.7°C (35.1°F).

What is the least humid month in Saint Catharines?

With an average relative humidity of 55.9%, May is the least humid month.

When it does not snow in Saint Catharines?

June through September are months without snowfall in Saint Catharines, Canada.

When are the longest days in Saint Catharines?

June has the longest days of the year in Saint Catharines, with an average of 15.3h of daylight.

What month has the most sunshine in Saint Catharines?

The month with the most sunshine in Saint Catharines, Canada, is June, with an average of 9.3h of sunshine.

What is the warmest month in Saint Catharines?

July is the warmest month in Saint Catharines, Canada, with an average high-temperature of 27.1°C (80.8°F) and an average low-temperature of 16.6°C (61.9°F).

What month is the sea warmest in Saint Catharines?

The month with the warmest seawater is August, with an average sea temperature of 23.2°C (73.8°F).

What is the rainiest month in Saint Catharines?

The month with the most rainfall in Saint Catharines, Canada, is September when the rain falls for 10.9 days and typically aggregates up to 90.6mm (3.6") of precipitation.

What is the month with the shortest days in Saint Catharines?

The month with the shortest days in Saint Catharines, Canada, is December, with an average of 9h of daylight.
Average temperature - Saint Catharines, Canada
Average humidity - Saint Catharines, Canada
Average rainfall - Saint Catharines, Canada

The wettest month (with the highest rainfall) is September (90.6mm).
The driest month (with the lowest rainfall) is February (28.9mm).

Average rainfall days - Saint Catharines, Canada

The month with the highest number of rainy days is April (12.4 days).
Months with the lowest number of rainy days are January and February (5.8 days).

Average snowfall - Saint Catharines, Canada
Average snowfall days - Saint Catharines, Canada

The month with the highest number of snowfall days is January (12.3 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature - Saint Catharines, Canada

The best month for swimming (with the highest average sea temperature) is August (23.2°C).
The coldest month (with the lowest average sea temperature) is February (1.7°C).

Average daylight / Average sunshine - Saint Catharines, Canada