The highest day temperature in April 2026 was 56°F. The lowest night temperature was 21°F. The average values for day and night temperatures during April were 40.3°F и 31.8°F respectivly.

The average sea surface temperature in April 2026 for Summerside was 32.9°F. The maximum and minimum values were 29.2°F and 41.4°F respectively.

Most of the days in April are gloomy but you can also expect sunny days.

Precipitation total in April for Summerside is 1.0 in. It makes april the least rainy month of the year.

The average wind speed in April is 12.8 mph.

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 April is 5.8 hours.