World Resorts Canada Summerside Weather

Summerside sea water temperature

Current sea water temperature:
+50.5°F
Minimum sea water temperature in June: 68.4°F
Maximum sea water temperature in June: 48.0°F
Average sea water temperature in June: 58.7°F

Sea water temperature for the last 10 days:

June 6 50.5°F May 31 48.9°F
June 5 54.1°F May 30 48.2°F
June 4 50.2°F May 29 48.7°F
June 3 51.1°F May 28 47.8°F
June 1 48.0°F May 27 47.5°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.

Best time for vacation in Summerside

Sunniest months:
August 12 days
May 10 days
September 10 days
Warmest months:
August 71.1 °F
July 70.6 °F
September 64.2 °F
Warmest sea temp:
August 70.3 °F
July 68.8 °F
September 65.4 °F
Coldest months:
February 23.4 °F
January 24.4 °F
March 31.1 °F
Rainiest months:
August 3 days
June 3 days
September 3 days
Windiest months:
November 16.4 mph
December 16.2 mph
January 14.3 mph

Summerside on a weather map

Summerside
+63°F
N 17 mph
Feels like: +61°F
Precip.: 1%
Places in Canada:
Name
°F
+45°F
+61°F
+59°F
+81°F
+52°F
+73°F
+63°F
+68°F
+66°F
+45°F
+66°F
+72°F
+54°F
24 Hours Forecast
Summerside
Local time: 21:38
June 07, sunday
0000
55°F
N
19 mph
0300
52°F
NW
22 mph
0600
54°F
N
16 mph
0900
55°F
N
11 mph
1200
57°F
NE
9 mph
1500
57°F
SE
7 mph
1800
48°F
S
24 mph
2100
46°F
S
24 mph
Units of measurement: °C / °F