World Resorts Canada Saint John Weather

Saint John Sea Temperature in July

Average sea water temperature in July:
+56.6°F
Minimum sea water temperature in July: 64.9°F
Maximum sea water temperature in July: 49.8°F

Daily sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 54.5°F. The highest and lowest sea temperatures during the month were 60.8°F and 50.7°F.

Monthly sea water temperature in Saint John, °F

Which Canada resorts have warmest sea in July?

Place name July 2026 July 2025
Windsor 75.4°F 75.4°F
Montreal 75.0°F 75.8°F
Winnipeg 73.5°F 70.7°F
Niagara-on-the-Lake 72.8°F 74.3°F
Kingston 71.6°F 72.3°F
Barrie 71.6°F 70.7°F
Niagara Falls 71.6°F 72.5°F
Quebec 71.2°F 69.7°F
Gimli 71.2°F 69.7°F
Summerside 67.4°F 68.7°F
Hamilton 67.2°F 70.6°F
Charlottetown 65.4°F 66.1°F
Mississauga 65.2°F 68.7°F
Toronto 65.0°F 68.5°F
Prince Edward Island 64.7°F 66.5°F
North Vancouver 64.0°F 65.1°F
Vancouver 63.8°F 64.9°F
Surrey 63.7°F 65.4°F
Nanaimo 63.3°F 64.8°F
Oshawa 62.9°F 67.1°F

Best time for vacation in Saint John

Sunniest months:
September 10 days
October 10 days
August 9 days
Warmest months:
July 72.4 °F
August 71.8 °F
June 67.7 °F
Warmest sea temp:
August 59.6 °F
September 58.4 °F
July 56.6 °F
Coldest months:
January 25.6 °F
February 26.3 °F
December 32.4 °F
Rainiest months:
July 3 days
October 3 days
May 2 days
Windiest months:
March 9.0 mph
December 9.0 mph
February 8.6 mph

Saint John on a weather map

Saint John
+75°F
NE 4 mph
Feels like: +79°F
Precip.: 8%
Places in Canada:
Name
°F
+77°F
+66°F
+66°F
+68°F
+90°F
+54°F
+84°F
+82°F
+91°F
+86°F
+75°F
+77°F
+84°F
+86°F
24 Hours Forecast
Saint John
Local time: 12:27
August 06, thursday
1500
81°F
NE
8 mph
1800
77°F
NE
6 mph
2100
64°F
NE
5 mph
August 07, friday
0000
64°F
NE
2 mph
0300
63°F
NE
3 mph
0600
61°F
NE
2 mph
0900
72°F
NE
2 mph
1200
72°F
NE
4 mph
Units of measurement: °C / °F