Measurements:
°C
°F
Charlottetown
52°F
NW 18 mph
Feels like: 46°F
Precip: 0%
World Resorts Canada Charlottetown Weather

Charlottetown Sea Water Temperature

Current Sea Water Temperature:
+36.8°F
Maximum Sea Water Temperature in April: 43.0°F
Minimum Sea Water Temperature in April: 28.6°F
Average water temperature in April: 35.0°F

Sea Water Temperature for the Last 10 Days:

April 19 36.8°F April 14 31.6°F
April 18 35.6°F April 13 33.4°F
April 17 33.2°F April 12 30.8°F
April 16 33.2°F April 11 30.8°F
April 15 33.8°F April 10 33.2°F

When is the Warmest Sea for Charlottetown?

According to our data for the last three years for Charlottetown 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: 2025 2024 2023

The average sea surface temperature in August 2025 for Charlottetown was 71.0°F. The maximum and minimum values were 69.0°F and 75.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Charlottetown was 67.9°F. The maximum and minimum values were 62.6°F and 73.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Charlottetown was 67.5°F. The maximum and minimum values were 62.6°F and 71.8°F respectively.

Best Time to Visit Charlottetown
The most sunny months:
August 11 days
September 9 days
June 8 days
The most warm months:
August 74.6 °F
July 74.0 °F
September 67.2 °F
Warmest sea temperature:
August 71.3 °F
July 68.6 °F
September 66.5 °F
The most cold months:
February 22.0 °F
January 22.9 °F
March 30.6 °F
The most rainy months:
November 5 days
July 4 days
September 4 days
The most windy months:
November 14 mph
December 14 mph
January 12 mph

Charlottetown on the Weather Map

24 Hours Weather Forecast
Charlottetown
Local time: 12:25
19 apr, sunday
1500 54°F
N
16 mph
1800 52°F
N
17 mph
2100 50°F
N
17 mph
20 apr, monday
0000 48°F
N
17 mph
0300 42°F
SE
16 mph
0600 38°F
E
14 mph
0900 40°F
E
15 mph
1200 44°F
E
12 mph