Lake Ontario Water Temperature
Lake Ontario is nestled right between the Canadian province of Ontario and New York state. It is Canada’s most populated territory and its fourth largest by area. Ontario boasts over 250,000 lakes – holding about one third of the world’s fresh water.
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The city is a multicultural centre holding annual events such as the Canadian Aboriginal Festival, Caribbean Carnival and their very own Oktoberfest.
Lake Ontario Summary
Description | Value |
---|---|
Warmest Month Water Temperature: | August with 76.1°F / 24.5°C |
Coldest Month Water Temperature: | March with 32.7°F / 0.4°C |
Warmest Month Air Temperature: | August with 71.8°F / 22.1°C |
Coldest Month Air Temperature: | February with 26.1°F / -3.3°C |
Wettest Month: | December with 5.1in / 130.8mm |
Driest Month: | July with 0in / 0mm |
Highest Humidity | June with 85.7% |
Lowest Humidity | October with 72% |
Best Time to Visit: | June, July, August, September |
Climate Classification | Warm-summer humid continental climate |
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Lake Ontario water temperature by month
Lake Ontario water temperature by month
Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
---|---|---|---|
January |
40.1 | 37.4 | 34.5 |
February |
34.7 | 33.4 | 32.7 |
March |
33.3 | 32.7 | 32.4 |
April |
38.3 | 35.8 | 33.4 |
May |
50.7 | 43.2 | 38.5 |
June |
66 | 57.2 | 49.8 |
July |
75.7 | 69.4 | 62.2 |
August |
77 | 73.9 | 71.2 |
September |
75.7 | 70.2 | 64.9 |
October |
66.2 | 59.2 | 52.7 |
November |
53.2 | 48.7 | 45 |
December |
45 | 42.4 | 40.3 |
Lake Ontario water temperature by month
Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
---|---|---|---|
January |
4.5 | 3 | 1.4 |
February |
1.5 | 0.8 | 0.4 |
March |
0.7 | 0.4 | 0.2 |
April |
3.5 | 2.1 | 0.8 |
May |
10.4 | 6.2 | 3.6 |
June |
18.9 | 14 | 9.9 |
July |
24.3 | 20.8 | 16.8 |
August |
25 | 23.3 | 21.8 |
September |
24.3 | 21.2 | 18.3 |
October |
19 | 15.1 | 11.5 |
November |
11.8 | 9.3 | 7.2 |
December |
7.2 | 5.8 | 4.6 |
August is the month with the warmest water temperature at 76.1°F / 24.5°C. The month with the coldest is March with an average water temperature of 32.7°F / 0.4°C.
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Lake Ontario weather today & 14-day weather forecast
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Lake Ontario weather by month / climate table
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
---|---|---|---|---|---|---|
January |
36.9 | 27.7 | 18.1 | 4.4 | 18 | 75.1% |
February |
33.6 | 26.1 | 17.4 | 2.1 | 3 | 75.6% |
March |
39.2 | 30.4 | 20.5 | 0.4 | 0 | 77% |
April |
45.1 | 38.5 | 31.3 | 0.4 | 3 | 79.2% |
May |
55.8 | 46.8 | 40.5 | 0.3 | 1 | 85.4% |
June |
68.2 | 59.2 | 51.1 | 0.7 | 1 | 85.7% |
July |
74.8 | 69.8 | 63.5 | 0 | 0 | 78.7% |
August |
76.5 | 71.8 | 67.3 | 0.1 | 0 | 73.8% |
September |
73.9 | 66.7 | 59.2 | 0.2 | 1 | 72.2% |
October |
64 | 54.9 | 45.7 | 1.8 | 0 | 72% |
November |
54.1 | 44.1 | 36.9 | 1.4 | 5 | 72.7% |
December |
43 | 35.1 | 28.9 | 5.1 | 18 | 74.2% |
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
---|---|---|---|---|---|---|
January |
2.7 | -2.4 | -7.7 | 112.9 | 18 | 75.1% |
February |
0.9 | -3.3 | -8.1 | 54.5 | 3 | 75.6% |
March |
4 | -0.9 | -6.4 | 11.4 | 0 | 77% |
April |
7.3 | 3.6 | -0.4 | 9.1 | 3 | 79.2% |
May |
13.2 | 8.2 | 4.7 | 8.3 | 1 | 85.4% |
June |
20.1 | 15.1 | 10.6 | 17.2 | 1 | 85.7% |
July |
23.8 | 21 | 17.5 | 0 | 0 | 78.7% |
August |
24.7 | 22.1 | 19.6 | 2.3 | 0 | 73.8% |
September |
23.3 | 19.3 | 15.1 | 6.2 | 1 | 72.2% |
October |
17.8 | 12.7 | 7.6 | 45.3 | 0 | 72% |
November |
12.3 | 6.7 | 2.7 | 34.3 | 5 | 72.7% |
December |
6.1 | 1.7 | -1.7 | 130.8 | 18 | 74.2% |
The best time of year to visit Ontario and its many lakes would be between late May and mid-October. At this time the average water temperature of the area is consistently above 62°F, so going for a swim will not require thermal wetsuits!
The lake area has great accessibility by car, train and coach, the nearest domestic airports are Toronto City and Niagara International.
Activities & POI in Lake Ontario
Type of Activity | List |
---|---|
Attraction | Strewn Winery, Olde Towne Gardens |
Picture Copyright: Flickr CC 2.0 Life is a wonder