Average sea water temperature in October:
+55.4°F
| Minimum sea water temperature in October: | 59.2°F |
| Maximum sea water temperature in October: | 51.8°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 53.8°F. The highest and lowest sea temperatures during the month were 58.5°F and 51.8°F.
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Monthly sea water temperature in Saint John, °F
Which Canada resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Niagara-on-the-Lake | 61.0°F | 63.2°F |
| Windsor | 60.6°F | 61.7°F |
| Hamilton | 60.3°F | 63.0°F |
| Niagara Falls | 60.0°F | 62.4°F |
| Barrie | 59.3°F | 61.7°F |
| Kingston | 59.0°F | 61.4°F |
| Toronto | 58.9°F | 62.7°F |
| Mississauga | 58.8°F | 62.8°F |
| Oshawa | 58.2°F | 62.2°F |
| Lunenburg | 55.5°F | 58.9°F |
| Quebec | 55.4°F | 58.6°F |
| Halifax | 55.3°F | 58.6°F |
| Surrey | 54.5°F | 53.5°F |
| Montreal | 54.4°F | 58.1°F |
| Sydney | 54.3°F | 57.5°F |
| Nanaimo | 54.2°F | 53.3°F |
| Tofino | 54.2°F | 53.5°F |
| Charlottetown | 54.0°F | 57.5°F |
| Saint John | 53.8°F | 54.9°F |
| Saint Andrews | 53.8°F | 54.8°F |
Best time for vacation in Saint John
Saint John on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Saint John
Local time: 21:55
November 15, sunday
0000
36°F
SE
6 mph
6 mph
0300
36°F
SE
6 mph
6 mph
0600
36°F
SE
6 mph
6 mph
0900
36°F
SE
6 mph
6 mph
1200
41°F
SE
9 mph
9 mph
1500
41°F
SE
10 mph
10 mph
1800
39°F
SE
9 mph
9 mph
2100
37°F
SE
9 mph
9 mph
