Mississauga Weather in June
June is one of the excellent months to visit Mississauga, with daytime temperatures of 23°C (73°F) and lows of 14°C (57°F) at night. Do note that quite a bit of rainfall is typical, averaging around 87 mm (3.4 in).
Rainfall in Mississauga in June
Typically, about 10 days will experience rainfall, with an average of 87 mm (3.4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Mississauga in June
Mississauga has excellent weather in June, with days reaching 23°C (73°F) and nights cooling to 14°C (57°F). The month of June belongs to the summer season. Overall, the month follows a fairly predictable daily temperature pattern. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Mississauga in June
Expect a lot of sunshine this month, with about 261 hours of sun. These sunny conditions add to the overall experience.If you're inclined towards comfortable temperatures and drier conditions, June is a good time to visit Mississauga.
Mississauga Temperature in June
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Mississauga Weather by Month
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Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mississauga typically rise from around 21°C (70°F) at the start of June to approximately 25°C (77°F) by the end. Nights are cool, with lows typically ranging from 11°C (52°F) to 17°C (63°F).
Average temperatures in June
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Historical weather records for Mississauga in June
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 June
According to our 50 years of weather records for Mississauga, the following extremes were recorded between 1976 and 2026.
- Mississauga recorded its highest June temperature of 35°C (95°F) on June 24, 2025.
- Mississauga experienced its chilliest June day on June 20, 1992, reaching only 11°C (52°F).
- Mississauga registered its coldest June night on June 3, 1986, with temperatures dropping to 2°C (36°F).
Best Places in Canada in June
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in June →
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 June
Pleasant temperatures in June mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Mississauga in June
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Mississauga 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Mississauga climate overview or explore weather in Canada.
Popular in June
Where to go in June - average daytime high across popular destinations.
Montréal
25°C (77°F) Niagara Falls
25°C (77°F) Ottawa25°C (77°F) Quebec City
23°C (73°F) Toronto22°C (72°F) Calgary20°C (68°F) Vancouver19°C (66°F) Whistler15°C (59°F) 
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