[category]
[title]
A rapidly intensifying Super El Niño is developing across the tropical Pacific and could have a major impact on Canada's weather over the coming months—with forecasters warning it has the potential to become one of the strongest El Niño events on record.
Read more: A rare super El Niño could be the most powerful in a century
According to a report published by Severe Weather Europe, the latest ocean and atmospheric data suggest the phenomenon is strengthening unusually quickly and could reach peak intensity by late fall or early winter.
If current forecasts hold, the event is expected to influence temperatures, precipitation and storm tracks across much of Canada through the 2026–27 season.
What is a Super El Niño?
El Niño occurs when sea surface temperatures in the central and eastern tropical Pacific become significantly warmer than normal, altering global wind patterns and the jet stream.
A Super El Niño is an exceptionally strong version of the climate pattern that can dramatically reshape weather around the world.
According to the latest forecasts, sea surface temperature anomalies are already exceeding the threshold for a strong El Niño, with some models projecting record-breaking intensity later this year.
Check out: Quebec was one of the coldest places on earth this year
What could it mean for Canada's weather?
Forecasters say the atmospheric response is already becoming apparent, with July weather patterns across North America closely resembling those observed during previous Super El Niño events.
As the climate pattern strengthens through August and into autumn, Canada could experience:
- Warmer-than-normal temperatures across much of central and eastern Canada during the fall.
- A shifting jet stream that changes where storms track across the country.
- Drier-than-normal conditions in parts of western, southern and northeastern Canada this fall.
- Periods of cooler weather in eastern Canada during August as low-pressure systems develop.
By winter, forecast models suggest a persistent area of high pressure over Canada, which would generally favour milder-than-average conditions across much of the country while pushing the main storm track farther south into the United States.
Will 2027 be colder than 2026?
Although long-range forecasts continue to evolve, meteorologists say the strength of this developing Super El Niño makes it a significant driver of the upcoming fall and winter weather pattern.
Forecast models indicate Canada could experience one of its warmest El Niño winters in years, though regional variations remain likely. As with any seasonal forecast, the exact timing and location of storms, snowfall and cold outbreaks will become clearer as the season approaches.
With the Super El Niño expected to continue strengthening over the next several months, forecasters will be closely monitoring its impact on Canada's weather heading into the 2026–27 winter season.
For more information about the report by Severe Weather Europe, click here.
RECOMMENDED:
Full guide to the best things to do in Montreal