World Resorts Canada Montreal Weather

Montreal weather in September

Weather in Montreal: September

Average day temperature: 69.5°F
Average night temperature: 56.5°F
Sea water temperature: 66.7°F
Number of sunny days: 12 days
Day length: 11.7 - 13.3 hours
Number of rainy days: 4 days
Precipitation totals: 2.3 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 85°F. At the same time the lowest night temperature was 45°F. Day and night temperature averages during September were 70.6°F and 57.7°F.

Sea water temperature in Montreal in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 68.5°F. The highest and lowest sea temperatures during the month were 70.7°F and 64.9°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

Precipitation total value in Montreal in September is 2.3 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 6.9 mph It makes September lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 6.4.

Best time for vacation in Montreal

Sunniest months:
July 14 days
August 14 days
September 12 days
Warmest months:
July 78.9 °F
August 77.1 °F
June 72.5 °F
Warmest sea temp:
August 71.6 °F
July 71.4 °F
September 66.7 °F
Coldest months:
January 19.6 °F
February 22.2 °F
December 27.9 °F
Rainiest months:
May 6 days
July 6 days
June 5 days
Windiest months:
April 9.7 mph
March 9.1 mph
February 9.1 mph

Montreal on a weather map

Montreal
+7°F
SE 7 mph
Feels like: -8°F
Precip.: 0%
Places in Canada:
Name
°F
+45°F
+46°F
+19°F
+21°F
-2°F
+7°F
+7°F
+16°F
+7°F
+14°F
+5°F
+16°F
+34°F
+10°F
24 Hours Forecast
Montreal
Local time: 10:01
December 22, sunday
1200
14°F
E
6 mph
1500
18°F
E
6 mph
1800
18°F
E
7 mph
2100
10°F
E
6 mph
December 23, monday
0000
10°F
E
6 mph
0300
9°F
NE
6 mph
0600
9°F
NE
4 mph
0900
10°F
N
4 mph
Units of measurement: °C / °F