Mississauga
December
Weather in Mississauga for December 2025
Your guide to Mississauga weather in December - trends and predictions
The climate of Mississauga in December is quite snowy, averaging 11 snowy days.
In general, the average temperature in Mississauga at the beginning of December is 1.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 3.7 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
9
Dry days
11
Rainy days
11
Snow days
2°/-1°
Temperatures
19 km/h
Avg max wind
82 %
Avg humidity
Mississauga Weather December
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  2° | 2  3° | 3  2° | 4  1° | 5 1° | 6  -0° | |
| 7  2° | 8  5° | 9  7° | 10 6° | 11 2° | 12  3° | 13  -1° |
| 14 1° | 15  4° | 16 5° | 17 6° | 18 3° | 19 0° | 20 2° |
| 21 -1° | 22 -2° | 23 1° | 24 3° | 25 2° | 26 3° | 27 4° |
| 28 4° | 29 6° | 30 5° | 31  2° |
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Temperatures trend during December in Mississauga
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Moderate rain | 2° /-1° | 5.4 mm | 0 cm | |
| 2 Dec. | Light rain | 3° /-1° | 3.8 mm | 0 cm | |
| 3 Dec. | Moderate or heavy sleet | 2° /0° | 9.1 mm | 0 cm | |
| 4 Dec. | Overcast | 1° /-1° | 1.9 mm | 0.6 cm | |
| 5 Dec. | Overcast | 1° /-1° | 1.3 mm | 1 cm | |
| 6 Dec. | Light freezing rain | 0° /-4° | 0 mm | 0 cm | |
| 7 Dec. | Heavy snow | 2° /-2° | 0.5 mm | 0.4 cm | |
| 8 Dec. | Fog | 5° /0° | 0 mm | 0 cm | |
| 9 Dec. | Thundery outbreaks possible | 7° /2° | 17.5 mm | 0 cm | |
| 10 Dec. | Moderate rain | 6° /1° | 7 mm | 1.1 cm | |
| 11 Dec. | Light freezing rain | 2° /0° | 1 mm | 0.7 cm | |
| 12 Dec. | Patchy rain possible | 3° /-3° | 0 mm | 0 cm | |
| 13 Dec. | Partly cloudy | -1° /-4° | 0 mm | 0 cm | |
| 14 Dec. | Overcast | 1° /-4° | 0 mm | 0 cm | |
| 15 Dec. | Sunny | 4° /-1° | 3 mm | 0.7 cm | |
| 16 Dec. | Patchy rain possible | 5° /2° | 11.2 mm | 0 cm | |
| 17 Dec. | Light drizzle | 6° /2° | 1.3 mm | 0 cm | |
| 18 Dec. | Light rain shower | 3° /-1° | 10.1 mm | 7.1 cm | |
| 19 Dec. | Overcast | 0° /-3° | 0.1 mm | 0 cm | |
| 20 Dec. | Partly cloudy | 2° /-1° | 4.1 mm | 3 cm | |
| 21 Dec. | Overcast | -1° /-5° | 0 mm | 0 cm | |
| 22 Dec. | Overcast | -2° /-6° | 0 mm | 0 cm | |
| 23 Dec. | Light drizzle | 1° /-3° | 4.5 mm | 2.4 cm | |
| 24 Dec. | Mist | 3° /-1° | 4 mm | 2.8 cm | |
| 25 Dec. | Fog | 2° /-1° | 0 mm | 0 cm | |
| 26 Dec. | Light drizzle | 3° /0° | 1.3 mm | 0 cm | |
| 27 Dec. | Moderate rain | 4° /2° | 8.5 mm | 0 cm | |
| 28 Dec. | Patchy rain possible | 4° /2° | 2.4 mm | 0 cm | |
| 29 Dec. | Light drizzle | 6° /3° | 34.2 mm | 0 cm | |
| 30 Dec. | Sunny | 5° /0° | 3.3 mm | 0 cm | |
| 31 Dec. | Light snow | 2° /0° | 3.3 mm | 2.4 cm | |
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Important Notice
Our weather forecast for Mississauga in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Mississauga forecast closer to your planned date for the most up-to-date weather information.
Mississauga in December - FAQ
What are the expected maximum and minimum temperatures in Mississauga during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Mississauga during December?
Significant rainfall exceeding 138.9 mm is expected in Mississauga during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Mississauga in December 2025?
Mississauga experiences an average snowfall of 22.13 cm during December, occurring over 11 days.
What are the typical wind conditions in Mississauga during December?
The average wind speed in Mississauga during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
Mississauga snow forecast December 2025
Track daily snowfall levels and discover Mississauga’s snowy potential this December ❄️
December rainfall patterns in Mississauga
Explore the daily rainfall trends and prepare for Mississaugas December weather 💧
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