Canada’s new climate change assessment says the country is warming rapidly and will face more frequent and severe weather extremes unless global greenhouse gas emissions decline substantially.
Canada’s Changing Climate Report 2026, released by Environment and Climate Change Canada, brings together recent scientific research on observed and projected changes across the country.
The assessment covers temperature, precipitation, wildfires, freshwater, snow and ice, oceans, permafrost and other climate-related risks.
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Climate Change: What the climate report says about Canada
The report says Canada warmed by about 2.0 C between 1948 and 2023, while northern Canada warmed by approximately 2.6 C over the same period.
The assessment describes the changes as consistent with rapid global warming and says the country is experiencing longer growing seasons, more extreme heat, shorter snow and ice seasons, rising sea levels and increasing wildfire risk.
The findings are not limited to long-range projections.
The report says climate-related changes are already affecting communities, infrastructure, ecosystems, public health and the economy across the country.
In the near term, Canada’s annual average temperature is expected to rise by about 1 C between the 2021–2040 period, regardless of the emissions pathway followed in the immediate future.
That warming is expected to intensify climate trends that are already being observed.
More droughts, flash floods and wildfire weather
One of the report’s central findings is that droughts and flash floods are expected to become more frequent and severe as warming continues.
Summer droughts are projected to become longer, more intense and more common across central and southern Canada.
At the same time, heavier rainfall is expected to increase the risk of flash flooding, including in urban areas where drainage systems can be overwhelmed quickly.
The report also projects more frequent and intense extreme fire weather in most regions of Canada.
Fire seasons are already longer in many parts of the country and are expected to lengthen further as average temperatures rise.
That does not mean every year or every region will experience the same conditions.
Natural variability will continue to produce wet, cool or relatively mild seasons.
However, the long-term direction identified by the assessment is toward greater climate risk as warming increases.
How warming will change snow, ice and precipitation
Canada is expected to receive more annual precipitation on average, with the largest increases projected in northern Canada and around Hudson Bay.
More precipitation will not necessarily mean more water is available when and where communities need it, because warmer temperatures will also alter snowpack, runoff and evaporation.
Annual snowfall is projected to increase in parts of northern Canada but decrease in the country’s southernmost regions, particularly near the coasts.
In those areas, rising temperatures mean a greater share of winter precipitation is likely to fall as rain instead of snow.
The report also warns that snow and ice cover will continue to shorten with every additional degree of global warming.
That has implications for transportation, water supplies, northern communities, ecosystems and seasonal recreation.
What the report projects by the end of the century
Under a scenario broadly consistent with current global climate policies, Canada’s average temperature could reach about 5.0 C above the 1850–1900 average by the 2081–2100 period.
Under a scenario in which emissions continue rising and climate policies fail to reduce them, warming could reach approximately 6.9 C above that historical baseline.
Under a net-zero emissions scenario, warming would still continue for some time because the climate system responds slowly, but average temperatures could stabilize at a lower level of roughly 3.5 C above the 1850–1900 average by the end of the century.
The projections show why the report distinguishes between adaptation and emissions reduction.
Communities must prepare for impacts that are already unavoidable in the near term, while deeper emissions cuts can reduce the severity of longer-term changes.
Canada’s short-term fall outlook
The federal report arrives as Environment and Climate Change Canada’s seasonal forecast points to above-normal temperatures in many parts of the country for the October–December 2026 period.
The seasonal forecast is probabilistic rather than a day-by-day prediction, and its accuracy varies by region.
That outlook should not be confused with proof that every location will remain warm throughout the season.
Short-term cold outbreaks, snowstorms and heavy rainfall can still occur even during a warmer-than-normal season.
For residents, the practical message is that climate change is affecting both long-term planning and everyday risk management.
Emergency plans, wildfire preparedness, flood protection, heat safety and reliable weather alerts are becoming more important as weather extremes place additional pressure on homes, roads, utilities and public services.
What happens next
Canada’s Changing Climate Report 2026 is intended to support governments, businesses, researchers and communities as they assess risks and plan adaptation measures.
The federal government says the report will form part of Canada’s broader national assessment process on climate impacts and resilience.
The report does not predict the exact date or location of future disasters.
Instead, it identifies broad trends and the conditions that are becoming more likely as the country warms.
For Canadians, the clearest conclusion is that climate risk is no longer only a distant concern.
The assessment links current changes in heat, rainfall, wildfire conditions, snow, ice and water availability to a pattern expected to continue unless global warming is limited.
Frequently Asked Questions
What is Canada’s Changing Climate Report 2026?
It is a federal scientific assessment of observed and projected climate changes across Canada, including temperature, precipitation, wildfires, freshwater, snow, ice and oceans.
How much has Canada warmed?
The report says Canada warmed by about 2.0 C between 1948 and 2023, while northern Canada warmed by approximately 2.6 C.
Will extreme weather become more common in Canada?
The report projects more frequent and severe droughts, flash floods, heavy rainfall and extreme fire weather as warming continues.
Will Canada get more snow or less snow?
Snowfall is projected to increase in northern Canada but decrease in southernmost regions, where warmer temperatures will cause more winter precipitation to fall as rain.
Does a warmer seasonal forecast mean there will be no cold or snow?
No. Seasonal forecasts describe probabilities and broad averages. Cold outbreaks, snowstorms and heavy rainfall can still occur during a warmer-than-normal season.
Fact-Checked: Key facts were checked against Environment and Climate Change Canada’s 2026 climate assessment, headline statements and seasonal forecast information.
Disclaimer: Climate projections describe broad risks and long-term patterns, while local weather can vary considerably from day to day and region to region.