Weather in Summerside: August
![]() |
Average day temperature: | 71.1°F |
Average night temperature: | 63.9°F | |
![]() |
Sea water temperature: | 70.3°F |
![]() |
Number of sunny days: | 11 days |
Day length: | 13.4 - 14.8 hours | |
![]() |
Number of rainy days: | 3 days |
Precipitation totals: | 1.8 in. | |
more information |
forecast
Summerside |
temperature
Summerside |
Air temperature in August, °F
Day temperature | Night temperature |
The highest day temperature during August of 2024 was 75°F. At the same time the lowest night temperature was 55°F. Daily and nightly averages during August were 69.7°F and 63.8°F.
Sea water temperature in Summerside in August, °F
The average sea water temperature in August of 2024 was 70.6°F. The highest and lowest sea temperatures during the month were 72.7°F and 67.8°F.
Sunny days | |
Partly cloudy days | |
Cloudy days |
Number of sunny, partly cloudy and cloudy days in August is almost equal.
Precipitation total in August, in.
Precipitation total value in Summerside in August is 1.8 in. Other months of the year show relatively similar values.
The average wind speed value in August is 11.2 mph It makes August one of the least windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 7.4.
Best time for vacation in Summerside
Summerside on a weather map

21 mph

21 mph

25 mph

30 mph

28 mph

25 mph

24 mph

22 mph