Mississauga and Winnipeg have similar daytime temperatures, Mississauga has 11.5°C (20.7°F) warmer nights, Mississauga gets 134 mm (5.3 in) more rain a year.
Mississauga is at its warmest in July and coolest in January, while Winnipeg peaks in August and bottoms out in January. Month for month, Mississauga is the warmer of the two in 8 of 11 months.
Mississauga is the wetter of the two, collecting 685 mm (27 in) of rain a year against 551 mm (21.7 in) in Winnipeg. The most comfortable time to visit is June, July and August in Mississauga and June, July and August in Winnipeg.
| Mississauga | Metric | Winnipeg |
|---|---|---|
| 🌡️ Temperature | ||
| 18°C | 🌡️Average daytime high | 18.2°C |
| -0.5°C | 🌙Average nighttime low | -12°C |
| July | 🔥Hottest month | August |
| January | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 685 mm | 🌧️Annual rainfall | 551 mm |
| July | ☔Wettest month | June |
| February | 🏜️Driest month | February |
| 💨 Climate | ||
| 78% | 💧Average humidity | 77% |
| 4.1 m/s | 💨Average wind speed | 3.3 m/s |
Overnight, Mississauga typically falls to around -0.5°C (31.1°F) while Winnipeg settles near -12°C (10.4°F).
Mississauga is hottest in July and coldest in January, whereas Winnipeg peaks in August and is coolest in January.
Mississauga sees the most rain in July and the least in February; Winnipeg is wettest in June and driest in February.
Mississauga feels the more humid of the two, averaging 78% relative humidity against 77%.
For Winnipeg, the pick of the year is June, July and August.
Month by month, here is the coldest night, the average day and the hottest afternoon each city can expect. Switch Compare to read rainfall, humidity, wind or solar instead, and Period to move between the long-term 45-year average and any single year — the shading is a quick warm-to-cool guide.
| Month | Mississauga | Winnipeg | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | -13.9 | -3.7❄️ | 6.5 | -37.8 | -19.1❄️ | -0.4 |
| February | -13.4 | -3.3 | 6.8 | -35.3 | -17.2 | 0.8 |
| March | -10.3 | 0.8 | 12 | -26.3 | -7.3 | 11.7 |
| April | -3.1 | 6.7 | 16.4 | -9 | 6.5 | 22 |
| May | 2.3 | 12.5 | 22.6 | -1.8 | 13 | 27.8 |
| June | 7.8 | 17.2 | 26.5 | 5.9 | 18.4 | 30.9 |
| July | 13 | 20.7🔥 | 28.5 | 10.1 | 21.4🔥 | 32.7 |
| August | 13.3 | 20.6 | 28 | 8.1 | 20.6 | 33 |
| September | 8.5 | 17.1 | 25.7 | 0.8 | 14.9 | 29 |
| October | 2.5 | 11.4 | 20.3 | -6.5 | 7.6 | 21.7 |
| November | -3.3 | 5.4 | 14 | -19.4 | -5.1 | 9.3 |
| December | -9.2 | -0.3 | 8.6 | -33.2 | -16.3 | 0.5 |
| Annual Avg | -0.5 | 8.8 | 18 | -12 | 3.1 | 18.3 |
Min / mean / max temperature (°C). 🔥 marks each city's hottest month, ❄️ its coldest; shading runs cool blue to warm red.
The same figures plotted out, so the shape of a typical year is easier to see than in a grid. Where the two lines run close together Mississauga and Winnipeg feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Mississauga Winnipeg
See how Mississauga and Winnipeg stack up against other cities. Swipe for more.
Choose which city to keep, then search for any other city in our database — we'll build the comparison for you.
Quick answers to the questions people ask most when comparing Mississauga and Winnipeg — each drawn straight from the climate figures above.
Mississauga and Winnipeg are about equally warm. Daytime highs average 18°C (64.4°F) in Mississauga and 18.2°C (64.8°F) in Winnipeg, so neither is clearly the warmer choice over the year. Nights are milder in Mississauga, with average lows of -0.5°C (31.1°F) versus -12°C (10.4°F).
Mississauga is hottest in July, averaging highs of about 28.5°C (83.2°F), while Winnipeg peaks in August at around 33°C (91.4°F). That makes Winnipeg the hotter of the two at the height of summer.
Winnipeg gets colder. In its coldest month (January) overnight lows average about -37.8°C (-36°F), compared with -13.9°C (7°F) at the low point of the year in Mississauga.
Mississauga is the wetter city, collecting about 685 mm (27 in) of rain a year versus 551 mm (21.7 in) in Winnipeg. Mississauga is wettest in July and driest in February; Winnipeg is wettest in June and driest in February.
Humidity is similar in both, averaging around 78% in Mississauga and 77% in Winnipeg across the year.
The most comfortable months in Mississauga are June, July and August, when average temperatures are at their mildest.
Winnipeg is at its most pleasant around June, July and August, based on the mildest average temperatures of the year.
Mississauga is the warmer city in 8 of the 11 months of the year. The gap is widest in December, about 16°C (28.8°F), and narrowest in August, about 0°C (0°F).
Winnipeg has the bigger seasonal swing, about 40.5°C (72.9°F) between its coldest and hottest months versus 24.4°C (43.9°F) in Mississauga — so Mississauga has the steadier, more even climate.
On climate alone, Winnipeg comes out ahead — it offers less rain than Mississauga. Mississauga is the better fit only if you'd actually prefer more rainfall.
Every figure on this page is calculated from NASA POWER satellite climate data spanning 1981–2025 (45 years). The averages describe the long-term climate of Mississauga and Winnipeg, not a single year's weather or a short-range forecast.
