Average sea water temperature in October:
+57.2°F
| Minimum sea water temperature in October: | 63.5°F |
| Maximum sea water temperature in October: | 49.8°F |
Daily sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 56.7°F. The highest and lowest sea temperatures during the month were 62.1°F and 53.4°F.
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Monthly sea water temperature in Summerside, °F
Which Canada resorts have warmest sea in October?
| Place name | October 2025 | October 2024 |
|---|---|---|
| Niagara-on-the-Lake | 63.2°F | 62.8°F |
| Hamilton | 63.0°F | 62.0°F |
| Mississauga | 62.8°F | 60.0°F |
| Toronto | 62.7°F | 59.3°F |
| Niagara Falls | 62.4°F | 61.6°F |
| Oshawa | 62.2°F | 59.0°F |
| Barrie | 61.7°F | 60.7°F |
| Windsor | 61.7°F | 59.9°F |
| Kingston | 61.4°F | 61.7°F |
| Lunenburg | 58.9°F | 56.3°F |
| Halifax | 58.6°F | 56.3°F |
| Quebec | 58.6°F | 58.4°F |
| Montreal | 58.1°F | 57.6°F |
| Sydney | 57.5°F | 55.8°F |
| Charlottetown | 57.5°F | 56.6°F |
| Prince Edward Island | 57.0°F | 56.6°F |
| Summerside | 56.7°F | 56.7°F |
| Moncton | 55.8°F | 54.8°F |
| Saint John | 54.9°F | 54.8°F |
| Saint Andrews | 54.8°F | 54.4°F |
Best time for vacation in Summerside
Summerside on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Summerside
Local time: 20:17
December 20, saturday
2100
27°F
E
23 mph
23 mph
December 21, sunday
0000
25°F
E
14 mph
14 mph
0300
27°F
NE
9 mph
9 mph
0600
28°F
N
15 mph
15 mph
0900
30°F
N
21 mph
21 mph
1200
34°F
N
24 mph
24 mph
1500
36°F
NE
16 mph
16 mph
1800
37°F
NE
9 mph
9 mph
