World Resorts Canada Montreal Weather

Montreal sea water temperature

Current sea water temperature:
+71.1°F
Minimum sea water temperature in June: 79.0°F
Maximum sea water temperature in June: 32.0°F
Average sea water temperature in June: 64.8°F

Sea water temperature for the last 10 days:

June 26 71.1°F June 21 70.0°F
June 25 69.4°F June 20 70.5°F
June 24 70.3°F June 19 70.7°F
June 23 70.2°F June 18 71.6°F
June 22 70.5°F June 17 72.5°F

When is the warmest sea in Montreal?

Based on the data about daily sea water temperature for the last three years the warmest sea in Montreal was noticed in July, August and September.

Monthly Sea Temperatures in Montreal, °F

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 75.8°F. The highest and lowest sea temperatures during the month were 79.2°F and 71.8°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 74.7°F. The highest and lowest sea temperatures during the month were 79.2°F and 68.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 66.7°F. The highest and lowest sea temperatures during the month were 69.6°F and 64.2°F.

Best time for vacation in Montreal

Sunniest months:
July 14 days
August 14 days
June 12 days
Warmest months:
July 79.2 °F
August 77.3 °F
June 72.9 °F
Warmest sea temp:
August 71.8 °F
July 71.7 °F
September 66.7 °F
Coldest months:
January 19.6 °F
February 22.1 °F
December 27.5 °F
Rainiest months:
June 5 days
May 5 days
July 5 days
Windiest months:
April 9.6 mph
March 9.1 mph
February 8.9 mph

Montreal on a weather map

Montreal
+63°F
SW 1 mph
Feels like: +63°F
Precip.: 22%
Places in Canada:
Name
°F
+48°F
+57°F
+54°F
+68°F
+55°F
+66°F
+59°F
+59°F
+63°F
+61°F
+57°F
+52°F
+55°F
+59°F
24 Hours Forecast
Montreal
Local time: 02:14
June 27, saturday
0300
63°F
SW
1 mph
0600
63°F
W
1 mph
0900
68°F
S
1 mph
1200
73°F
SE
2 mph
1500
75°F
NE
2 mph
1800
72°F
E
2 mph
2100
66°F
E
1 mph
June 28, sunday
0000
64°F
N
0 mph
Units of measurement: °C / °F