Mississauga Climate by Month
Mississauga, Ontario, Canada
Warm summers and freezing winters, with rain spread through the year.
The climate in Mississauga is one of warm summers and freezing winters, with rain spread through the year. Afternoon highs range from 31°F (-1°C) in January to 80°F (27°C) in July, and January nights average 17°F (-8°C). It gets 32 in (814 mm) of rain a year, spread across the months.
- Warmest month
- 80°F(27°C)
- Average high, July
- Coldest nights
- 17°F(-8°C)
- Average low, January
- Rain per year
- 32 in(814 mm)
- No clear rainy season
- Humidity
- 78%
- Sunniest: June
Best and worst months in Mississauga
Best for weatherJune is the best time for weather in Mississauga: highs near 75°F (24°C) and about 2.9 in (74 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 31°F (-1°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Mississauga weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 31°F(-1°C) | 17°F(-8°C) | 2.7 in(68 mm) | 91% | 1.4 |
| FebFebruary | 32°F(0°C) | 18°F(-8°C) | 2.0 in(52 mm) | 86% | 2.3 |
| MarMarch | 41°F(5°C) | 27°F(-3°C) | 2.0 in(51 mm) | 76% | 3.4 |
| AprApril | 53°F(11°C) | 36°F(2°C) | 3.2 in(82 mm) | 71% | 4.4 |
| MayMay | 65°F(19°C) | 47°F(8°C) | 3.3 in(83 mm) | 72% | 5.4 |
| JunJuneBest | 75°F(24°C) | 56°F(14°C) | 2.9 in(74 mm) | 73% | 5.9 |
| JulJuly | 80°F(27°C) | 62°F(16°C) | 3.1 in(79 mm) | 70% | 5.9 |
| AugAugust | 79°F(26°C) | 61°F(16°C) | 2.7 in(69 mm) | 72% | 5.2 |
| SepSeptember | 72°F(22°C) | 54°F(12°C) | 2.6 in(66 mm) | 76% | 4.1 |
| OctOctober | 59°F(15°C) | 43°F(6°C) | 2.6 in(67 mm) | 78% | 2.4 |
| NovNovember | 47°F(8°C) | 34°F(1°C) | 2.5 in(64 mm) | 82% | 1.4 |
| DecDecember | 36°F(2°C) | 25°F(-4°C) | 2.3 in(59 mm) | 87% | 1.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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