Georgian Bay Water Temperature
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Georgian Bay, Ontario is on the Severn River where it meets the waters of Georgian Bay, sometimes referred to as the ‘sixth Great Lake’ but actually part of the eastern portion of Lake Huron, where Manitoulin Island to the north and the Bruce Peninsular at the south cut it off. This picturesque bay area was once part of the historic Algonquin-Huron route for trade and is part of the greater Muskoka region.
The coldest month is March with an average water temperature of 32°F / 0°C.
June is the driest at 0in / 0mm and December the wettest month with 4.2in / 107.8mm.
With an average air temperature of 68.7°F / 20.4°C, August is the warmest month in a year. February is the coldest with 18.7°F / -7.4°C average air temperature.
The Climate is described as Warm-summer humid continental climate. Best time to Visit would be in June, July, August, September.
Georgian Bay Summary
| Description | Value |
|---|---|
| Current water temperature | / |
| Warmest Month Water Temperature: | August with 72.3°F / 22.4°C |
| Coldest Month Water Temperature: | March with 32°F / 0°C |
| Warmest Month Air Temperature: | August with 68.7°F / 20.4°C |
| Coldest Month Air Temperature: | February with 18.7°F / -7.4°C |
| Wettest Month: | December with 4.2in / 107.8mm |
| Driest Month: | June with 0in / 0mm |
| Highest Humidity | June with 86.4% |
| Lowest Humidity | October with 74% |
| Best Time to Visit: | June, July, August, September |
| Climate Classification | Warm-summer humid continental climate |
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Georgian Bay is comprised of a gently sloping basin with a deeper area by the Bruce Peninsula where it can be as deep as 60m just 100m from the shore. However, most areas don’t exceed about 25m in depth with about 10m being normal close to the shore, and water temperatures range from about 60.8 F in June to 66.2F in August. From December to March much of Georgian Bay is frozen and covered in ice.
The coves and islands are ideal for sailing and kayaking as well as for swimming, and there are several naturist beaches. Wasaga beach with its 9 miles of pure white sand is the world’s longest freshwater beach.
Georgian Bay water temperature by month
Georgian Bay water temperature by month
| Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
|---|---|---|---|
|
January |
38.3 | 35.1 | 32.7 |
|
February |
32.9 | 32.2 | 32 |
|
March |
32.2 | 32 | 32 |
|
April |
35.2 | 33.1 | 32.2 |
|
May |
44.4 | 39 | 35.2 |
|
June |
59.5 | 51.4 | 43.9 |
|
July |
72.1 | 64.8 | 57.2 |
|
August |
73.8 | 70.5 | 68.4 |
|
September |
73.6 | 67.3 | 63 |
|
October |
63 | 56.5 | 50.5 |
|
November |
50.5 | 46.8 | 43.7 |
|
December |
43.7 | 41 | 38.5 |
Georgian Bay water temperature by month
| Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
|---|---|---|---|
|
January |
3.5 | 1.7 | 0.4 |
|
February |
0.5 | 0.1 | -0 |
|
March |
0.1 | 0 | -0 |
|
April |
1.8 | 0.6 | 0.1 |
|
May |
6.9 | 3.9 | 1.8 |
|
June |
15.3 | 10.8 | 6.6 |
|
July |
22.3 | 18.2 | 14 |
|
August |
23.2 | 21.4 | 20.2 |
|
September |
23.1 | 19.6 | 17.2 |
|
October |
17.2 | 13.6 | 10.3 |
|
November |
10.3 | 8.2 | 6.5 |
|
December |
6.5 | 5 | 3.6 |
14 Days Weather Forecast for Georgian Bay
Georgian Bay weather today & 14-day weather forecast
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Best Time to Visit Georgian Bay
The summer months from May to September are the best time for visits to Georgian Bay for sailing, fishing and kayaking, and the water is warm enough for a pleasant swim. Georgian Bay is easy to reach from Toronto International Airport, just 81 miles away. There are numerous small airlines which can take you to Parry Sound, or you can drive to Georgian Bay in two hours. Buses such as Ontario Northland go from Toronto to Parry Sound daily, and a local bus will whisk you to Georgian Bay in just 10 minutes.
Georgian Bay weather by month / climate table
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
31.6 | 21.4 | 10.6 | 3.4 | 11 | 79.1% |
|
February |
27.9 | 18.7 | 9.7 | 1.8 | 1 | 79% |
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March |
35.8 | 25 | 13.3 | 0.1 | 1 | 80.2% |
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April |
41.7 | 34.3 | 25.2 | 0.2 | 2 | 80.6% |
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May |
52.7 | 43.7 | 37.8 | 0.5 | 0 | 84% |
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June |
63.7 | 55 | 46.9 | 0 | 1 | 86.4% |
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July |
71.8 | 66.2 | 58.8 | 0 | 0 | 80.6% |
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August |
72.7 | 68.7 | 64.4 | 0 | 0 | 75.5% |
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September |
71.8 | 63.5 | 54 | 0.3 | 1 | 74% |
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October |
60.4 | 51.3 | 42.4 | 2.7 | 0 | 74% |
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November |
48.4 | 40.6 | 32 | 1.2 | 9 | 75.9% |
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December |
38.5 | 30.9 | 22.6 | 4.2 | 19 | 78% |
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
-0.2 | -5.9 | -11.9 | 85.3 | 11 | 79.1% |
|
February |
-2.3 | -7.4 | -12.4 | 45.7 | 1 | 79% |
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March |
2.1 | -3.9 | -10.4 | 3.1 | 1 | 80.2% |
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April |
5.4 | 1.3 | -3.8 | 4.4 | 2 | 80.6% |
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May |
11.5 | 6.5 | 3.2 | 12.3 | 0 | 84% |
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June |
17.6 | 12.8 | 8.3 | 0 | 1 | 86.4% |
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July |
22.1 | 19 | 14.9 | 0 | 0 | 80.6% |
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August |
22.6 | 20.4 | 18 | 0 | 0 | 75.5% |
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September |
22.1 | 17.5 | 12.2 | 7.2 | 1 | 74% |
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October |
15.8 | 10.7 | 5.8 | 69 | 0 | 74% |
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November |
9.1 | 4.8 | 0 | 31.3 | 9 | 75.9% |
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December |
3.6 | -0.6 | -5.2 | 107.8 | 19 | 78% |
Activities around Georgian Bay
Cycle the Georgian Bay coastal route to see some of the 32 lighthouses, or visit some of the 30,00 islands from Honey Harbor. From cross country skiing in winter, to exceptional sailing and swimming in crystal clear waters during summer, friendly locals and plenty of holiday accommodation make Georgian Bay an excellent destination.
Picture Copyright Flick CC BY 2.0: elPadawan