Measurements:
°C
°F
Charlottetown
58°F
S 17 mph
Feels like: 54°F
Precip: 25%
World Resorts Canada Charlottetown Weather

Charlottetown Sea Water Temperature

Current Sea Water Temperature:
+65.4°F
Maximum Sea Water Temperature in September: 73.2°F
Minimum Sea Water Temperature in September: 60.4°F
Average water temperature in September: 66.6°F

Sea Water Temperature for the Last 10 Days:

September 08 65.4°F September 03 69.4°F
September 07 67.6°F September 02 69.2°F
September 06 68.4°F September 01 70.6°F
September 05 68.8°F August 31 71.8°F
September 04 69.4°F August 30 72.6°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Charlottetown was 72.0°F. The maximum and minimum values were 69.0°F and 76.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Charlottetown was 67.2°F. The maximum and minimum values were 62.6°F and 71.6°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
July 9 days
May 9 days
The most warm months:
August 75.1 °F
July 74.3 °F
September 67.2 °F
Warmest sea temperature:
August 71.4 °F
July 68.4 °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
September 4 days
April 3 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: 18:36
08 sep, tuesday
2100 52°F
S
14 mph
09 sep, wednesday
0000 50°F
SE
13 mph
0300 52°F
S
11 mph
0600 54°F
S
11 mph
0900 56°F
S
9 mph
1200 60°F
S
7 mph
1500 62°F
NE
4 mph
1800 58°F
N
6 mph