Measurements:
°C
°F
Charlottetown
26°F
N 11 mph
Feels like: 18°F
Precip: 87%
World Resorts Canada Charlottetown Weather

Charlottetown Sea Water Temperature

Current Sea Water Temperature:
+28.8°F
Maximum Sea Water Temperature in March: 34.6°F
Minimum Sea Water Temperature in March: 26.8°F
Average water temperature in March: 29.9°F

Sea Water Temperature for the Last 10 Days:

March 30 28.8°F March 25 27.8°F
March 29 29.4°F March 24 29.2°F
March 28 31.0°F March 23 29.6°F
March 27 29.4°F March 22 30.0°F
March 26 29.6°F March 21 30.8°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

Canada Resorts:
NAME
Halifax +28
Moncton +28
Montreal +32
Niagara Falls +34
Ottawa +32
Prince Edward Island +28
Quebec +18
Rocky Harbour +12
Saint John +32
St. John's +16
Sydney +26
Toronto +34
Vancouver +36
Victoria +32
Winnipeg +18
24 Hours Weather Forecast
Charlottetown
Local time: 05:22
30 mar, monday
0600 26°F
N
11 mph
0900 32°F
N
14 mph
1200 38°F
N
18 mph
1500 44°F
N
20 mph
1800 40°F
NE
22 mph
2100 36°F
NE
22 mph
31 mar, tuesday
0000 36°F
E
20 mph
0300 30°F
E
16 mph