Current sea water temperature:
+37.6°F
| Minimum sea water temperature in December: | 41.9°F |
| Maximum sea water temperature in December: | 31.8°F |
| Average sea water temperature in December: | 35.7°F |
| more information | |
14 days
forecast
forecast
| Summerside |
monthly
weather
weather
| Summerside |
Sea water temperature for the last 10 days:
| December 5 | 37.6°F | November 30 | 39.7°F |
| December 4 | 38.1°F | November 29 | 39.7°F |
| December 3 | 38.7°F | November 28 | 40.1°F |
| December 2 | 37.9°F | November 27 | 41.2°F |
| December 1 | 39.7°F | November 26 | 39.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Summerside?
Based on the data about daily sea water temperature for the last three years the warmest sea in Summerside was noticed in August, July and September.
Monthly Sea Temperatures in Summerside, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 70.2°F. The highest and lowest sea temperatures during the month were 74.8°F and 67.3°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.7°F. The highest and lowest sea temperatures during the month were 74.1°F and 62.4°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 66.2°F. The highest and lowest sea temperatures during the month were 70.0°F and 61.3°F.
current
weather
weather
| Summerside |
weather in
December
December
| Summerside |
Best time for vacation in Summerside
Summerside on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Summerside
Local time: 05:58
December 05, friday
0600
7°F
SE
32 mph
32 mph
0900
7°F
SE
29 mph
29 mph
1200
16°F
E
27 mph
27 mph
1500
21°F
E
27 mph
27 mph
1800
23°F
E
25 mph
25 mph
2100
19°F
E
22 mph
22 mph
December 06, saturday
0000
19°F
E
21 mph
21 mph
0300
19°F
E
18 mph
18 mph
