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 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
With the onset of September, the average high-temperature subtly recedes from August's warm 24.7°C (76.5°F) to a pleasant 20.8°C (69.4°F). September witnesses an average nighttime temperature of 11.5°C (52.7°F).Humidity
In September, the average relative humidity in Brossard is 76%.Rainfall
September is the month with the least rainfall in Brossard. Rain falls for 12 days and accumulates 55mm (2.17") of precipitation.Snowfall
In Brossard, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:16 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:35 pm EDT.
Sunshine
In Brossard, Canada, the average sunshine in September is 8.5h.UV index
In Brossard, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 3 during September leads to these advisories:
Undertake protective steps - Preventing sun damage is advised. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the temperature in September in Brossard?
What is the average humidity in September in Brossard?
What is the driest month in Brossard?
How many days does it rain in September in Brossard?
When it does not snow in Brossard?
Does it snow in Brossard in September?
How many hours of daylight does Brossard have in September?
What time are sunrise and sunset in September in Brossard?
How many hours of sunshine does Brossard have in September?
What is the UV index intensity in September in Brossard?
Average temperature in September
Brossard, Canada
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is July (25.7°C).
The month with the lowest average high temperature is January (-5.7°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is July (16.2°C).
The coldest month (with the lowest average low temperature) is January (-12.9°C).
Average pressure in September
Brossard, Canada
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in September
Brossard, Canada
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is April (14.3km/h).
The calmest months (with the lowest average wind speed) are July and August (10.9km/h).
Average humidity in September
Brossard, Canada
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Brossard, Canada
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is May (86mm).
The driest month (with the least rainfall) is September (55mm).
Average rainfall days in September
Brossard, Canada
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Brossard, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (297mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Brossard, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brossard, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Brossard, Canada
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is February (9 days).
Average UV index in September
Brossard, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Brossard, Canada
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Brossard, Canada
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and February (7km).
Brossard, Canada
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