Weather in December in Ontario
Planning a journey to Ontario this December and curious over the weather conditions to await? Your essential details are found on this page, answering your query:
What is the weather like in Ontario in December?
Ontario is a region in Canada. Ontario has a wide variety of climate types. During December, you can expect temperatures that range from very cold to cold and precipitation levels ranging from moderate to high. During December, winter is in full swing.
Temperatures
The average highest temperatures fluctuate between very cold in Red Lake at -9°C to cold in Saint Catharines at 4°C. Nighttime temperatures generally drop to -1°C in Saint Catharines and -17°C in Red Lake. In many areas in Canada, December brings with it chilling temperatures. When visiting these parts during this time, it's of utmost importance to be ready. Choose clothing that is both layered and insulating to combat the cold effectively.To learn more about the conditions in specific areas of Ontario, check out the map below.
Precipitation
In December, precipitation varies across different areas. From moderate snowfall in Red Lake with an average of 31 mm to high snowfall in Rockport with 110 mm.Average sunshine
Most cities witness limited sunny days, expect roughly 78 hours of sunlight in Toronto. This low amount of sunlight is perfect for those who lean towards dimmer, cloudier weather rather than intense sunny days.For more details on the yearly climate, visit our Ontario climate page.
Where to go in Ontario in December
perfect weather
pleasant
tolerable
unpleasant
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Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Ontario's climate page.
Popular destinations
What is the weather like in December for the 5 most popular destinations in Ontario?
Toronto
In December Toronto generally has low temperatures with maximum daytime temperatures around 4°C, minimum nighttime temperatures around -3°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.
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Ottawa
In December Ottawa generally has very low temperatures with maximum daytime temperatures around -0°C, minimum nighttime temperatures around -9°C and moderate monthly snowfall. So on average the conditions are poor that month.
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Niagara Falls
In December Niagara Falls generally has low temperatures with maximum daytime temperatures around 4°C, minimum nighttime temperatures around -3°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.
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Mississauga
In December Mississauga generally has low temperatures with maximum daytime temperatures around 3°C, minimum nighttime temperatures around -3°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.
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Niagara on the Lake
In December Niagara on the Lake generally has low temperatures with maximum daytime temperatures around 3°C, minimum nighttime temperatures around -2°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.
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Is your destination not in the list? Have a look at other destinations in Ontario, in Canada.
Is December the best time to visit Ontario?
In our opinion, December may not be the ideal time to visit Ontario due to the typically poor weather in Toronto.
Generally speaking, the best visiting conditions can be found in June, July, August and September offering mostly perfect weather in Toronto. In contrast, January, February, March, April, November and December tend to have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Ontario.
Weather and climate has detailed information for every country in the world. Are you going to Canada? Get detailed historical weather averages for many cities in Canada.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.