Measurements:
°C
°F
CURRENT WEATHER
09:31
Summerside
70°F
NW 5 mph
Feels like: 70°F
Precip: 82%
World Resorts Canada Summerside Weather

7 Day Weather Forecast

08.19
wed
DAY
72°F
W 2 mph
precip
82%
NIGHT
70°F
NE 9 mph
precip
14%
08.20
thu
DAY
72°F
NE 7 mph
precip
18%
NIGHT
64°F
SW 6 mph
precip
83%
08.21
fri
DAY
66°F
SE 4 mph
precip
16%
NIGHT
62°F
NW 1 mph
precip
18%
08.22
sat
DAY
68°F
S 5 mph
precip
3%
NIGHT
62°F
NW 11 mph
precip
23%
08.23
sun
DAY
70°F
NW 12 mph
precip
18%
NIGHT
60°F
NW 21 mph
precip
48%
08.24
mon
DAY
76°F
N 21 mph
precip
35%
NIGHT
66°F
NE 24 mph
precip
10%
08.25
tue
DAY
68°F
E 16 mph
precip
5%
NIGHT
64°F
NE 9 mph
precip
27%

Summerside Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Summerside was 21.8°F. The maximum and minimum values were 19.3°F and 23.3°F respectively.

Summerside on the Weather Map

Best Time to Visit Summerside
The most sunny months:
August 12 days
May 10 days
July 10 days
The most warm months:
August 73.5 °F
July 73.2 °F
September 65.8 °F
Warmest sea temperature:
August 72.5 °F
July 70.7 °F
September 67.1 °F
The most cold months:
February 20.5 °F
January 21.6 °F
March 29.0 °F
The most rainy months:
August 3 days
June 3 days
September 3 days
The most windy months:
November 16 mph
December 16 mph
January 14 mph
more details