Summerside Weather: August
 |
Average Day Temperature: | 73.5°F |
|
Average Night Temperature: | 64.7°F |
|
Sea Water Temperature: | 72.5°F |
|
Number of Sunny Days: | 12 days |
| Sunshine Hours: | 13.4 - 14.8 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.5 in | |
| detailed information | ||
forecast
| Summerside |
Temperature
| Summerside |
Air Temperature in August, °F
The highest day temperature in August 2025 was 87°F. The lowest night temperature was 52°F. The average values for day and night temperatures during August were 73.8°F и 60.9°F respectivly.
Summerside Water Sea Temperature in August, °F
The average sea surface temperature in August 2025 for Summerside was 72.4°F. The maximum and minimum values were 69.2°F and 77.6°F respectively.
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 1.5 in. It makes august one of the most rainy months of the year.
The average wind speed in August is 11.2 mph. It makes August one of the most windless months of the year for Summerside.
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 8.1 hours.
Summerside on the Weather Map
| Barrie |  |
+58 |
| Halifax |  |
+64 |
| Kingston |  |
+66 |
| Montreal | |
+66 |
| Ottawa | |
+66 |
| Prince Edward Island | |
+64 |
| Quebec | |
+62 |
| Saint John | |
+64 |
| St. John's |  |
+56 |
| Sydney |  |
+58 |
| Toronto | |
+62 |
| Vancouver |  |
+58 |
| Victoria | |
+56 |
| Winnipeg | |
+72 |
| Yellowknife |  |
+54 |
| 0900 |  |
66°F | NW 8 mph |
| 1200 |  |
74°F | W 6 mph |
| 1500 |  |
62°F | SW 16 mph |
| 1800 | |
62°F | SW 19 mph |
| 2100 | |
64°F | SW 15 mph |
| 0000 |  |
64°F | SW 8 mph |
| 0300 | |
64°F | W 5 mph |
| 0600 | |
64°F | W 5 mph |