Mississauga Weather in January
During January, Mississauga experiences very low daytime temperatures of 0°C (32°F) and cooler nights around -8°C (18°F). As part of the winter season, expect quite a bit of snow/rainfall. Around 77 mm (3 in) is typical.
Rainfall in Mississauga in January
Snow/rain is expected on roughly 11 days, totalling around 77 mm (3 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Mississauga in January
January in Mississauga brings very low temperatures, with highs of 0°C (32°F) and nights around -8°C (18°F). This month falls in the winter season. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. Nights drop below freezing to -8°C (18°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. The coldest month of the year calls for plenty of warm layers. Be sure to pack your winter gear.
Sunshine in Mississauga in January
The city usually sees around 78 hours of sunlight, indicating fewer sunny days.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Mississauga. Our weather planner can help you explore destinations with more pleasant weather conditions.
Mississauga Temperature in January
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Mississauga Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mississauga - and find the best time to visit.
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Mississauga typically stay consistent throughout January, with daily highs averaging around 0°C (32°F). Nights are very cold, with lows typically ranging from -11°C (12°F) to -6°C (21°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather records for Mississauga in January
Browse day-by-day weather records for Mississauga spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mississauga historical weather extremes in January
According to our 49 years of weather records for Mississauga, the following extremes were recorded between 1976 and 2025.
- The hottest January day on record in Mississauga reached 14°C (57°F) (January 8, 2008).
- Nighttime temperatures dropped to -26°C (-15°F) on January 16, 1984, marking the coldest January night on record.
Best Places in Canada in January
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in January →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mississauga in January
Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.
What To Do in Mississauga in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling2/10 -
Walking2/10 -
Camping1/10 -
Outdoor sports2/10
Mississauga 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Mississauga climate overview or explore weather in Canada.
Popular in January
Where to go in January - average daytime high across popular destinations.
Vancouver
7°C (45°F) Niagara Falls
0°C (32°F) Toronto1°C (34°F) Calgary-2°C (28°F) Whistler-2°C (28°F) Montréal-4°C (25°F) Ottawa-4°C (25°F) Quebec City-6°C (21°F) 
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