March weather forecast
Toronto, Canada

Colorfully lit night city of Toronto, Canada, with a view of the Nathan Phillips Square, and a large Toronto sign
Colorfully lit night city of Toronto, Canada, with a view of the Nathan Phillips Square, and a large Toronto sign

Weather in March

March, the first month of the spring, in Toronto, is a cold month, with average temperature varying between 3.2°C (37.8°F) and -2.2°C (28°F).

Temperature

In March, the average high-temperature slightly increases, from a freezing cold -1.3°C (29.7°F) in February, to a wintry 3.2°C (37.8°F). In Toronto, Canada, in March, the average low-temperature is -2.2°C (28°F).

Humidity

The average relative humidity in Toronto, Canada, is 77%.

Rainfall

In Toronto, during March, the rain falls for 10.2 days and regularly aggregates up to 27mm (1.06") of precipitation. In Toronto, during the entire year, the rain falls for 136.8 days and collects up to 420mm (16.54") of precipitation.

Snowfall

January through April, November and December are months with snowfall in Toronto. In Toronto, snow falls for 6 days, with typically accumulated 28mm (1.1") of snow. Throughout the year, there are 45.6 snowfall days, and 223mm (8.78") of snow is accumulated.

Sea temperature

March is the month with the coldest seawater, with an average sea temperature of 1.9°C (35.4°F).
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

In March, the average length of the day is 12h.

Sunshine

In March, the average sunshine is 5.7h.

UV index

In March, the average daily maximum UV index in Toronto is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in March in Toronto?

The average relative humidity in March is 77%.

How much does it rain in Toronto in March?

In Toronto, Canada, in March, it is raining for 10.2 days, with typically 27mm (1.06") of accumulated precipitation.

How much does it snow in Toronto in March?

In Toronto, during March, snow falls for 6 days and regularly aggregates up to 28mm (1.1") of snow.

When is the sea coldest in Toronto?

March is the month with the coldest seawater in Toronto, Canada, with an average sea temperature of 1.9°C (35.4°F).

How cold is the water in March in Toronto?

In Toronto, Canada, in March, the average water temperature is 1.9°C (35.4°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

How many hours of daylight does Toronto have in March?

The average length of the day in March in Toronto is 12h.

How many hours of sunshine does Toronto have in March?

In March, the average sunshine is 5.7h.

What is the UV index intensity in March in Toronto?

The average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in March
Toronto, Canada

Average temperature in March - Toronto, Canada
  • Average high temperature in March: 3.2°C

The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-2.3°C).

  • Average low temperature in March: -2.2°C

Months with the highest average low temperature are July and August (18.4°C).
The coldest month (with the lowest average low temperature) is January (-7°C).

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Average pressure in March
Toronto, Canada

Average pressure in March - Toronto, Canada
  • Average pressure in March: 1018.4mbar

The month with the highest atmospheric pressure is March (1018.4mbar).
The month with the lowest atmospheric pressure is June (1013.1mbar).

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Average wind speed in March
Toronto, Canada

Average wind speed in March - Toronto, Canada
  • Average wind speed in March: 17.4km/h

The windiest month (with the highest average wind speed) is January (19.5km/h).
The calmest month (with the lowest average wind speed) is July (11.7km/h).

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Average humidity in March
Toronto, Canada

Average humidity in March - Toronto, Canada
  • Average humidity in March: 77%

Months with the highest relative humidity are January and February (83%).
Months with the lowest relative humidity are August and September (74%).

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Average rainfall in March
Toronto, Canada

Average rainfall in March - Toronto, Canada
  • Average rainfall in March: 27mm

The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is February (19mm).

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Average rainfall days in March
Toronto, Canada

Average rainfall days in March - Toronto, Canada
  • Average rainfall days in March: 10.2 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (5.6 days).

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Average snowfall in March
Toronto, Canada

Average snowfall in March - Toronto, Canada
  • Average snowfall in March: 28mm

The month with the highest snowfall is January (57mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in March
Toronto, Canada

Average snowfall days in March - Toronto, Canada
  • Average snowfall days in March: 6 days

The month with the highest number of snowfall days is January (11.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in March
Toronto, Canada

Average sea temperature in March - Toronto, Canada
  • Average sea temperature in March: 1.9°C

The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest month (with the lowest average sea temperature) is March (1.9°C).

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Average daylight in March /
Average sunshine in March
Toronto, Canada

Average daylight in March / Average sunshine in March - Toronto, Canada
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in March: 5.7h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is January (Average sunshine: 3.2h).

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Average sunshine days in March
Toronto, Canada

Average sunshine days in March - Toronto, Canada
  • Average sunshine days in March: 16.2 days

The month with the most sunshine days is March (16.2 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in March
Toronto, Canada

Average UV index in March - Toronto, Canada
  • Average UV index in March: 2

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in March
Toronto, Canada

Average cloud cover in March - Toronto, Canada
  • Average cloud cover in March: 54

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in March
Toronto, Canada

Average visibility in March - Toronto, Canada
  • Average visibility in March: 9km

Months with the highest visibility are June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, April, May, November and December (9km).

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