St. John's
Canada
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
St. John's, Canada

January, the same as December, in St. John's is another subzero cold winter month, with average temperature fluctuating between -8.2°C (17.2°F) and -0.8°C (30.6°F). In St. John's, the average high-temperature in January is almost the same as in December - a subzero cold -0.8°C (30.6°F). Weather in January »

The last month of the winter, February, is also a subzero cold month in St. John's, Canada, with average temperature fluctuating between -8.6°C (16.5°F) and -1.1°C (30°F). The coldest month in St. Weather in February »

The first month of the spring, March, is a wintry month in St. John's, Canada, with average temperature varying between -6.1°C (21°F) and 1°C (33.8°F). In St. John's, the average high-temperature in March is practically the same as in February - a wintry 1°C (33.8°F). Weather in March »

April, the same as March, is another cold spring month in St. John's, with average temperature ranging between max 5.6°C (42.1°F) and min -1.9°C (28.6°F). In St. John's, the average high-temperature in April slightly increases, from a wintry 1°C (33.8°F) in March, to a still cold 5.6°C (42.1°F). Weather in April »

The last month of the spring, May, is a fresh month in St. John's, with average temperature varying between 11.1°C (52°F) and 1.7°C (35.1°F). In May, the average high-temperature in St. John's rises, from a wintry 5.6°C (42.1°F) in April, to a cool 11.1°C (52°F). Weather in May »

June, the first month of the summer, in St. John's, is a mild month, with average temperature fluctuating between 5.9°C (42.6°F) and 15.8°C (60.4°F). In St. John's, the average high-temperature marginally rises, from a fresh 11.1°C (52°F) in May, to a mild 15.8°C (60.4°F). Weather in June »

July in St. John's is an agreeable summer month, with average temperature ranging between max 20.7°C (69.3°F) and min 10.9°C (51.6°F). With an average high-temperature of 20.7°C (69.3°F) and an average low-temperature of 10.9°C (51.6°F), July is the warmest month in St. Weather in July »

The last month of the summer, August, is also an agreeable month in St. John's, with temperature in the range of an average low of 11.6°C (52.9°F) and an average high of 20.5°C (68.9°F). In August, the average high-temperature in St. Weather in August »

September, the first month of the autumn, in St. John's, is also an enjoyable month, with average temperature varying between 8.2°C (46.8°F) and 16.5°C (61.7°F). In St. John's, the average high-temperature marginally drops, from a pleasant 20.5°C (68.9°F) in August, to a comfortable 16.5°C (61.7°F). Weather in September »

October, the same as September, is another fresh autumn month in St. John's, with average temperature varying between 10.8°C (51.4°F) and 3.9°C (39°F). In October, the average high-temperature in St. Weather in October »

November, the last month of the autumn, in St. John's, is also a frosty month, with average temperature fluctuating between 6.4°C (43.5°F) and -0.3°C (31.5°F). In November, the average high-temperature in St. Weather in November »

The first month of the winter, December, is also a wintry month in St. John's, with average temperature fluctuating between -4.7°C (23.5°F) and 1.8°C (35.2°F). In December, the average high-temperature in St. Weather in December »

How much does it rain in St. John's?

In St. John's, during the entire year, the rain falls for 162.7 days and collects up to 1206.5mm (47.5") of precipitation.

When does it snow in St. John's?

Months with snowfall in St. John's, Canada, are January through June, October through December.

How many days does it snow in St. John's?

Throughout the year, in St. John's, Canada, there are 79 snowfall days, and 3349.4mm (131.87") of snow is accumulated.

What is the snowiest month in St. John's?

January is the month with the most snowfall in St. John's. Snow falls for 18.3 days and accumulates 887mm (34.92") of snow.

What is the month with the lowest UV index in St. John's?

Months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

What is the coldest month in St. John's?

The coldest month is February, with an average high-temperature of -1.1°C (30°F) and an average low-temperature of -8.6°C (16.5°F).

What is the driest month in St. John's?

The month with the least rainfall is February when the rain falls for 8.6 days and typically collects 61.6mm (2.43") of precipitation.

What is the month with the coldest sea water in St. John's?

With an average sea temperature of -0.4°C (31.3°F), March is the month with the coldest seawater in St. John's, Canada.

When are the longest days in St. John's?

June has the longest days of the year in St. John's, Canada, with an average of 15.9h of daylight.

What are the months with the highest UV index in St. John's?

Months with the highest UV index are June and July, with an average maximum UV index of 7.

What is the warmest month in St. John's?

The warmest month is July, with an average high-temperature of 20.7°C (69.3°F) and an average low-temperature of 10.9°C (51.6°F).

When it does not snow in St. John's?

July through September are months without snowfall in St. John's.

What month has the most sunshine in St. John's?

The month with the most sunshine in St. John's is July, with an average of 7h of sunshine.

What month is the sea warmest in St. John's?

The month with the warmest seawater is August, with an average sea temperature of 13.9°C (57°F).

What is the wettest month in St. John's?

The month with the most rainfall is October when the rain falls for 18.1 days and typically aggregates up to 153.7mm (6.05") of precipitation.

What is the month with the shortest days in St. John's?

The month with the shortest days is December, with an average of 8.5h of daylight.

What is the month with the least sunshine in St. John's?

With an average of 2h of sunshine, December has the least sunshine of the year in St. John's, Canada.
Average temperature - St. John
Average rainfall - St. John

The wettest month (with the highest rainfall) is October (153.7mm).
The driest month (with the least rainfall) is February (61.6mm).

Average rainfall days - St. John

The month with the highest number of rainy days is October (18.1 days).
The month with the least rainy days is February (8.6 days).

Average snowfall - St. John
Average snowfall days - St. John

The month with the highest number of snowfall days is January (18.3 days).
Months with the least snowfall days are July, August and September (0 days).

Average sea temperature - St. John

The best month for swimming (with the highest average sea temperature) is August (13.9°C).
The coldest month (with the lowest average sea temperature) is March (-0.4°C).

Average daylight / Average sunshine - St. John
Average UV index - St. John