Climate for Ontario
(Canada)

Average daytime and nighttime temperatures


All climatic diagrams on this site result from the collected data from 40 measuring stations in Ontario.
All data correspond to the average monthly values of the last 20 years.


Back to overview: Canada

Ontario is one of the warmest region in Canada with an average daily high temperature of 12 degrees centigrade. The climate is much more unsettled than in central Europe and offers varied seasons with deep winters and warm summers. Due to the warmer temperatures the best time for traveling is from May to September. Nearly unattractive for tourists are the cold months from November to March.

Overview: Climate in Canada
Duration of daylight and sunshine in Canada


hours of sunshine per day
Sunshine hours per day in Canada
rainy days per month
Rainy days per month in Canada
Precipitation in mm/day
Precipitation in Canada
Relative humidity in %
Relative humidity in Canada
Absolute humidity in g/m³ (approx.)
Absolute humidity in Canada

The most important cities in the region of Ontario

Ontario is a part of Canada and has an east-west extension of about 1470 km. From north to south it is approximately 990 km. The biggest cities are Toronto and Ottawa. The local time is now Friday, 4:02 pm.

CityPopulationGeo-Position 
Toronto2,956,02443°42'0"N79°24'59"W
Ottawa1,007,50145°24'40"N75°41'53"W
Mississauga747,65143°34'44"N79°39'30"W
Brampton656,97743°41'0"N79°45'59"W
Hamilton567,97943°15'0"N79°50'59"W
London414,95942°59'0"N81°13'59"W
Markham336,44543°52'1"N79°15'59"W
Vaughan318,27943°50'10"N79°29'54"W
Kitchener254,74043°25'31"N80°30'40"W
Windsor229,78742°18'0"N83°0'60"W
Oakville206,45243°27'0"N79°40'59"W
Richmond Hill199,49643°52'16"N79°26'14"W
Burlington189,20443°23'10"N79°50'14"W
Oshawa169,50943°54'0"N78°50'58"W
Greater Sudbury168,14146°29'24"N80°59'24"W
Barrie147,68544°24'0"N79°39'59"W
Guelph140,68343°32'45"N80°15'22"W
St. Catharines139,16843°10'17"N79°14'34"W
Cambridge136,94543°21'36"N80°18'46"W
Kingston132,94344°13'47"N76°28'52"W
Ajax126,92443°51'0"N79°1'58"W
Milton120,55843°31'1"N79°52'59"W
Waterloo115,92143°28'0"N80°30'59"W
Thunder Bay112,01448°22'55"N89°15'1"W
Brantford104,23143°8'0"N80°15'59"W
Niagara Falls88,07143°6'0"N79°3'59"W
Pickering87,83843°54'0"N79°7'58"W
Peterborough86,53844°18'0"N78°18'58"W
Sarnia82,99842°58'43"N82°24'15"W
Willowdale79,44043°46'0"N79°23'57"W