Average sea water temperature in October:
+58.6°F
| Minimum sea water temperature in October: | 68.4°F |
| Maximum sea water temperature in October: | 43.5°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 58.8°F. The highest and lowest sea temperatures during the month were 66.6°F and 54.0°F.
Monthly sea water temperature in Oshawa, °F
Which Canada resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Niagara-on-the-Lake | 61.7°F | 63.2°F |
| Hamilton | 61.3°F | 63.0°F |
| Windsor | 61.3°F | 61.7°F |
| Niagara Falls | 60.6°F | 62.4°F |
| Barrie | 60.1°F | 61.7°F |
| Kingston | 59.9°F | 61.4°F |
| Toronto | 59.7°F | 62.7°F |
| Mississauga | 59.6°F | 62.8°F |
| Oshawa | 58.8°F | 62.2°F |
| Lunenburg | 56.5°F | 58.9°F |
| Quebec | 56.4°F | 58.6°F |
| Halifax | 56.3°F | 58.6°F |
| Montreal | 55.7°F | 58.1°F |
| Sydney | 55.3°F | 57.5°F |
| Surrey | 55.1°F | 53.5°F |
| Charlottetown | 55.1°F | 57.5°F |
| Prince Edward Island | 54.8°F | 57.0°F |
| Nanaimo | 54.8°F | 53.3°F |
| Moncton | 54.7°F | 55.8°F |
| Tofino | 54.6°F | 53.5°F |
Best time for vacation in Oshawa
Oshawa on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Oshawa
Local time: 21:40
October 26, monday
0000
48°F
NE
4 mph
4 mph
0300
46°F
E
5 mph
5 mph
0600
46°F
E
6 mph
6 mph
0900
54°F
SE
11 mph
11 mph
1200
54°F
SE
10 mph
10 mph
1500
55°F
SE
9 mph
9 mph
1800
52°F
SE
10 mph
10 mph
2100
45°F
SE
9 mph
9 mph
