Toronto Weather Guide
Canada
Best Time to Visit
June, July, August, September
Avoid
January, February, March
Climate
Humid continental — cold winters, warm summers, lake-effect snow
Annual Rainfall
32 inches (812 mm) + 55 inches snow
Overview
Toronto's climate is shaped by Lake Ontario. Summers are warm and humid; winters are cold and snowy, though less extreme than Chicago. The western Toronto waterfront gets more lake-effect snow. Fall is beautiful with foliage.
Seasonal Weather Breakdown
Spring
March–May
32–65°F
0–18°C
Long and slow. March is still winter. April is unpredictable. May finally delivers spring. Mud season is real in surrounding conservation areas.
- →Late April and May are the practical start of spring
- →High Park cherry blossoms peak late April–early May
- →Dress in layers throughout May
Summer
June–August
66–81°F
19–27°C
Warm and humid. Toronto Island, the waterfront, and Lake Ontario beaches are the best urban escapes. Thunderstorms common in afternoon.
- →Toronto Island ferry is essential — book ahead
- →Rooftop patios and waterfront dining are peak experiences
- →Humidity is significant in July–August
Fall
September–November
44–68°F
7–20°C
Spectacular foliage in October. TIFF (September) and Nuit Blanche (October) make fall culturally rich. November turns cold and grey.
- →High Park foliage peaks mid-October
- →September remains warm with outdoor patios active
- →Bring a winter coat by November
Winter
December–February
18–32°F
-8–0°C
Cold with regular snow. Lake-effect snow from Lake Ontario hits the eastern and northern parts of the GTA hardest. Wind chill on the exposed waterfront is significant.
- →PATH underground system connects 30km of downtown shops
- →Ice skating at Nathan Phillips Square is a Toronto highlight
- →Serious winter gear required
What to Pack for Toronto
- ✓Heavy winter coat and thermal layers (December–March)
- ✓Waterproof boots October–April
- ✓Layers for summer evenings (cool lake breezes)
- ✓Sunscreen for July–August
Toronto Weather FAQ
What is the best time to visit Toronto?
June through September offers the best weather — warm (66–81°F/19–27°C), with events like TIFF (September), Caribana (August), and great waterfront access. September combines summer weather with fall festivals.
How cold does Toronto get in winter?
January averages lows of 18°F (-8°C) with wind chill regularly pushing feels-like to -20°F (-29°C). Lake Ontario wind chills are particularly harsh. The city averages 55 inches (140cm) of snow per winter.
What is lake-effect snow in Toronto?
Cold arctic air picks up moisture crossing Lake Ontario and dumps heavy snow on Toronto's eastern suburbs (Scarborough, Pickering). Downtown Toronto proper gets less lake-effect snow than surrounding areas.
Is Toronto colder than Chicago?
Chicago is colder overall due to stronger wind and Lake Michigan exposure. January averages in Chicago are roughly 5–7°F colder than Toronto. Both cities have brutal wind chills, but Toronto's winters are slightly milder.
Neighborhoods in Toronto
Each neighborhood in Toronto has its own microclimate. Check real-time conditions below: