Global Pattern Upheaval Triggers Come-and-Go Summer for Canada

The Weather Network’s official 2023 Summer Forecast reveals what Canadians can expect for the heart of the summer season.

Goodbye La Niña, hello El Niño!

La Niña has been the dominant driver of our seasonal weather patterns for the past three years. However, the global pattern is now in a state of upheaval as we are seeing a rapid transition to what appears to be a rather significant El Niño event. What does that mean for the upcoming summer season?

Our summer forecast for the months of June, July, and August calls for a “come-and-go” summer across Canada. While we will see periods of hot and dry weather, the heat will be broken up at times by shots of cooler weather.

Overall, a cooler summer is expected compared to the past few summers, especially across the eastern half of Canada. However, we will still see some lingering effects from La Niña with periods of hot weather, especially across western Canada.

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