Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As August makes way for September, Toronto's average high-temperature eases from a moderately hot 24.5°C (76.1°F) to an agreeable 20.9°C (69.6°F). Toronto records an average nighttime low of 15°C (59°F) in September.Humidity
August and September, with an average relative humidity of 74%, are the least humid months in Toronto.Rainfall
In Toronto, during September, the rain falls for 12.2 days and regularly aggregates up to 28mm (1.1") of precipitation. In Toronto, Canada, during the entire year, the rain falls for 136.8 days and collects up to 420mm (16.54") of precipitation.Snowfall
May through October are months without snowfall.Sea temperature
In Toronto, Canada, in September, the average water temperature is 20.1°C (68.2°F).Note: In water with a temperature of 20.1°C (68.2°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
Daylight
In Toronto, the average length of the day in September is 12h and 29min.On the first day of September in Toronto, sunrise is at 6:42 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:59 pm EDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Toronto, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What is the temperature in September in Toronto?
What are the least humid months in Toronto?
What is the average humidity in September in Toronto?
How much does it rain in Toronto in September?
When it does not snow in Toronto?
What is the sea temperature in September in Toronto?
How many hours of daylight does Toronto have in September?
When is the sunrise / sunset in September in Toronto?
How many hours of sunshine does Toronto have in September?
How high is the UV index in September in Toronto?
Average temperature in September
Toronto, Canada
- Average high temperature in September: 20.9°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 September: 15°C
The 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).
Average pressure in September
Toronto, Canada
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is March (1018.4mbar).
The month with the lowest atmospheric pressure is June (1013.1mbar).
Average wind speed in September
Toronto, Canada
- Average wind speed in September: 13.9km/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).
Average humidity in September
Toronto, Canada
- Average humidity in September: 74%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in September
Toronto, Canada
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days in September
Toronto, Canada
- Average rainfall days in September: 12.2 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).
Average snowfall in September
Toronto, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (57mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Toronto, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Toronto, Canada
- Average sea temperature in September: 20.1°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).
Average daylight in September /
Average sunshine in September
Toronto, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Toronto, Canada
- Average sunshine days in September: 15.5 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).
Average UV index in September
Toronto, Canada
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Toronto, Canada
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Toronto, Canada
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
Toronto, Canada
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