Measurements:
°C
°F
Summerside
58°F
S 21 mph
Feels like: 56°F
Precip: 59%
World Resorts Canada Summerside Weather August Weather in Summerside

Summerside Weather: August

Average Day Temperature: 73.8°F
Average Night Temperature: 64.7°F
Sea Water Temperature: 72.6°F
Number of Sunny Days: 12 days
Sunshine Hours: 13.4 - 14.8 hours
Number of Rainy Days: 3 days
Precipitation Totals: 2.0 in

Air Temperature in August, °F

Select Year: 2026 2025 2024

The highest day temperature in August 2026 was 87°F. The lowest night temperature was 57°F. The average values for day and night temperatures during August were 75.7°F и 65.2°F respectivly.

Summerside Water Sea Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Summerside was 73.3°F. The maximum and minimum values were 68.6°F and 76.6°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Summerside is 2.0 in. It makes august the most rainy month of the year.

Wind Speed in August, mph

The average wind speed in August is 11.0 mph. It makes August one of the most windless months of the year for Summerside.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Summerside in August is 8.2 hours.

Best Time to Visit Summerside
The most sunny months:
August 12 days
May 10 days
July 10 days
The most warm months:
August 73.8 °F
July 73.2 °F
September 65.8 °F
Warmest sea temperature:
August 72.6 °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

Summerside on the Weather Map

24 Hours Weather Forecast
Summerside
Local time: 17:15
08 sep, tuesday
1800 58°F
S
21 mph
2100 54°F
S
22 mph
09 sep, wednesday
0000 54°F
S
21 mph
0300 54°F
S
17 mph
0600 54°F
S
17 mph
0900 56°F
S
11 mph
1200 58°F
SE
6 mph
1500 60°F
NE
4 mph