August 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 August

August, the last month of the summer, in Toronto, is also a moderately hot month, with average temperature ranging between max 24.5°C (76.1°F) and min 18.4°C (65.1°F).

Temperature

In Toronto, the average high-temperature is essentially the same as in July - a still moderately hot 24.5°C (76.1°F). The average low-temperature, in Toronto, is 18.4°C (65.1°F).

Humidity

Months with the lowest humidity in Toronto are August and September, with an average relative humidity of 74%.

Rainfall

In Toronto, during August, the rain falls for 14.2 days and regularly aggregates up to 49mm (1.93") 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

In Toronto, Canada, snow does not fall in May through October.

Sea temperature

The month with the warmest seawater in Toronto, Canada, is August, with an average sea temperature of 22.3°C (72.1°F).
Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.3°C (72.1°F).

Daylight

The average length of the day in August is 13.9h.

Sunshine

The average sunshine in Toronto is 10.6h.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index in Toronto, Canada. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What are the least humid months in Toronto?

Months with the lowest humidity in Toronto are August and September, with an average relative humidity of 74%.

What is the average humidity in August in Toronto?

In August, the average relative humidity in Toronto, Canada, is 74%.

How many days does it rain in August in Toronto?

In Toronto, during August, the rain falls for 14.2 days and regularly aggregates up to 49mm (1.93") of precipitation.

When it does not snow in Toronto?

May through October are months without snowfall in Toronto, Canada.

What is the month with the warmest sea water in Toronto?

With an average sea temperature of 22.3°C (72.1°F), August is the month with the warmest seawater in Toronto.

What is the sea temperature in August in Toronto?

In Toronto, the average seawater temperature in August is 22.3°C (72.1°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 22.3°C (72.1°F) water.

What is the average length of the day in August in Toronto?

The average length of the day in August in Toronto, Canada, is 13.9h.

How many hours of sunshine does Toronto have in August?

In August, the average sunshine in Toronto, Canada, is 10.6h.

What are the months with the highest UV index in Toronto?

July and August, with an average maximum UV index of 6, are months with the highest UV index in Toronto, Canada.

How high is the UV index in August in Toronto?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.

Average temperature in August
Toronto, Canada

Average temperature in August - Toronto, Canada
  • Average high temperature in August: 24.5°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 August: 18.4°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 August
Toronto, Canada

Average pressure in August - Toronto, Canada
  • Average pressure in August: 1014.5mbar

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 August
Toronto, Canada

Average wind speed in August - Toronto, Canada
  • Average wind speed in August: 12.6km/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 August
Toronto, Canada

Average humidity in August - Toronto, Canada
  • Average humidity in August: 74%

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 August
Toronto, Canada

Average rainfall in August - Toronto, Canada
  • Average rainfall in August: 49mm

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 August
Toronto, Canada

Average rainfall days in August - Toronto, Canada
  • Average rainfall days in August: 14.2 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 August
Toronto, Canada

Average snowfall in August - Toronto, Canada
  • Average snowfall in August: 0mm

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 August
Toronto, Canada

Average snowfall days in August - Toronto, Canada
  • Average snowfall days in August: 0 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 August
Toronto, Canada

Average sea temperature in August - Toronto, Canada
  • Average sea temperature in August: 22.3°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 August /
Average sunshine in August
Toronto, Canada

Average daylight in August / Average sunshine in August - Toronto, Canada
  • Average daylight in August: 13.9h

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 August: 10.6h

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 August
Toronto, Canada

Average sunshine days in August - Toronto, Canada
  • Average sunshine days in August: 13.3 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 August
Toronto, Canada

Average UV index in August - Toronto, Canada
  • Average UV index in August: 6

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 August
Toronto, Canada

Average cloud cover in August - Toronto, Canada
  • Average cloud cover in August: 26

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 August
Toronto, Canada

Average visibility in August - Toronto, Canada
  • Average visibility in August: 10km

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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