Measurements:
°C
°F
Prince Edward Island
70°F
NW 6 mph
Feels like: 70°F
Precip: 87%
World Resorts Canada Prince Edward Island Weather

Prince Edward Island Sea Water Temperature

Current Sea Water Temperature:
+69.0°F
Maximum Sea Water Temperature in August: 76.4°F
Minimum Sea Water Temperature in August: 64.8°F
Average water temperature in August: 71.0°F

Sea Water Temperature for the Last 10 Days:

August 19 69.0°F August 14 71.4°F
August 18 70.2°F August 13 70.6°F
August 17 70.4°F August 12 72.6°F
August 16 70.6°F August 11 71.2°F
August 15 71.6°F August 10 71.8°F

When is the Warmest Sea for Prince Edward Island?

According to our data for the last three years for Prince Edward Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Prince Edward Island was 70.6°F. The maximum and minimum values were 67.0°F and 72.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Prince Edward Island was 66.4°F. The maximum and minimum values were 58.8°F and 69.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Prince Edward Island was 66.6°F. The maximum and minimum values were 61.8°F and 70.0°F respectively.

Best Time to Visit Prince Edward Island
The most sunny months:
August 12 days
September 11 days
October 11 days
The most warm months:
July 73.9 °F
August 73.9 °F
September 66.2 °F
Warmest sea temperature:
August 71.1 °F
July 68.0 °F
September 65.7 °F
The most cold months:
February 21.1 °F
January 22.1 °F
March 29.5 °F
The most rainy months:
November 4 days
August 3 days
October 3 days
The most windy months:
November 15 mph
December 15 mph
January 13 mph

Prince Edward Island on the Weather Map

24 Hours Weather Forecast
Prince Edward Island
Local time: 09:40
19 aug, wednesday
1200 74°F
NW
5 mph
1500 78°F
N
2 mph
1800 72°F
N
4 mph
2100 70°F
NE
6 mph
20 aug, thursday
0000 66°F
E
10 mph
0300 64°F
E
9 mph
0600 62°F
E
8 mph
0900 68°F
E
9 mph