Measurements:
°C
°F
CURRENT WEATHER
17:56
Charlottetown
54°F
S 16 mph
Feels like: 48°F
Precip: 28%
World Resorts Canada Charlottetown Weather

7 Day Weather Forecast

09.08
tue
DAY
60°F
SE 13 mph
precip
48%
NIGHT
52°F
SE 12 mph
precip
25%
09.09
wed
DAY
60°F
S 9 mph
precip
5%
NIGHT
56°F
N 14 mph
precip
10%
09.10
thu
DAY
66°F
NE 17 mph
precip
34%
NIGHT
60°F
E 11 mph
precip
21%
09.11
fri
DAY
52°F
E 14 mph
precip
20%
NIGHT
48°F
SE 11 mph
precip
20%
09.12
sat
DAY
60°F
E 7 mph
precip
19%
NIGHT
46°F
NW 3 mph
precip
16%
09.13
sun
DAY
64°F
NE 14 mph
precip
17%
NIGHT
60°F
NE 15 mph
precip
14%
09.14
mon
DAY
70°F
NE 16 mph
precip
20%
NIGHT
58°F
SE 11 mph
precip
87%

Charlottetown Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Charlottetown was 18.8°F. The maximum and minimum values were 16.3°F and 20.9°F respectively.

Charlottetown on the Weather Map

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
more details