Thunder Bay Water Temperature
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Thunder Bay is a city close to Lake Superior.
Warm-summer humid continental climate would be the climate here.
August is the month with the highest water temperature at 61.5°F / 16.4°C.
The month with the lowest is March with an average water temperature of 31.8°F / -0.1°C.
The avg. air temperature is around 66°F / 18.9°C, July is the month with the highest temperature. January is the coolest with 8.2°F / -13.2°C average air temperature.
May is the month with the min. precipitation of 0.2in / 6.3mm and December with the max. precipitation in a year with 1.7in / 43.9mm.
June, July, August, September would be the best time to visit this place.
Thunder Bay Summary
| Description | Value |
|---|---|
| Current water temperature | / |
| Warmest Month Water Temperature: | August with 16.4°C / 61.5°F |
| Coldest Month Water Temperature: | March with -0.1°C / 31.8°F |
| Warmest Month Air Temperature: | July with 18.9°C / 66°F |
| Coldest Month Air Temperature: | January with -13.2°C / 8.2°F |
| Wettest Month: | December with 43.9mm / 1.7in |
| Driest Month: | May with 6.3mm / 0.2in |
| Highest Humidity | December with 77.3% |
| Lowest Humidity | May with 70.2% |
| Best Time to Visit: | June, July, August, September |
| Climate Classification | Warm-summer humid continental climate |
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Thunder Bay water temperature by month
Lake Superior water temperature by month
| Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
|---|---|---|---|
|
January |
1.8 | 1 | 0.5 |
|
February |
0.4 | 0.1 | -0.1 |
|
March |
0.2 | -0 | -0.2 |
|
April |
1.4 | 0.8 | 0.4 |
|
May |
3.2 | 1.9 | 1.1 |
|
June |
7 | 4.6 | 3 |
|
July |
15.2 | 10.8 | 6.9 |
|
August |
16.9 | 16 | 14.8 |
|
September |
16.7 | 14.8 | 12.6 |
|
October |
12.8 | 10.3 | 7.9 |
|
November |
7.8 | 6.3 | 5 |
|
December |
4.9 | 3.8 | 2.9 |
Lake Superior water temperature by month
| Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
|---|---|---|---|
|
January |
35.2 | 33.8 | 32.9 |
|
February |
32.7 | 32.2 | 31.8 |
|
March |
32.4 | 32 | 31.6 |
|
April |
34.5 | 33.4 | 32.7 |
|
May |
37.8 | 35.4 | 34 |
|
June |
44.6 | 40.3 | 37.4 |
|
July |
59.4 | 51.4 | 44.4 |
|
August |
62.4 | 60.8 | 58.6 |
|
September |
62.1 | 58.6 | 54.7 |
|
October |
55 | 50.5 | 46.2 |
|
November |
46 | 43.3 | 41 |
|
December |
40.8 | 38.8 | 37.2 |
The highest water temperature will be reached in August with around 61.5°F / 16.4°C.
The lowest in March with an average water temperature of 31.8°F / -0.1°C.
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Thunder Bay weather today & 14-day weather forecast
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Thunder Bay weather by month / climate table
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
-6.3 | -13.2 | -20.1 | 29 | 0 | 75.3% |
|
February |
-5.9 | -12.2 | -18 | 14.8 | 0 | 73.8% |
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March |
2.5 | -5.6 | -14.9 | 6.9 | 0 | 73.8% |
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April |
8.4 | 1 | -6 | 7.9 | 0 | 71.1% |
|
May |
17.5 | 8 | 1.1 | 6.3 | 1 | 70.2% |
|
June |
21.3 | 13.9 | 6.7 | 16.5 | 1 | 74.6% |
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July |
24.1 | 18.9 | 13.2 | 28 | 1 | 72.6% |
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August |
23.7 | 18.8 | 14.6 | 26.8 | 0 | 73% |
|
September |
22 | 14.9 | 7.1 | 23.3 | 1 | 74.2% |
|
October |
14.3 | 7.3 | 1.7 | 24.9 | 0 | 74.9% |
|
November |
6.6 | 0.4 | -6.8 | 26.4 | 0 | 74.8% |
|
December |
-2.3 | -8.1 | -13.4 | 43.9 | 0 | 77.3% |
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
20.7 | 8.2 | -4.2 | 1.1 | 0 | 75.3% |
|
February |
21.4 | 10 | -0.4 | 0.6 | 0 | 73.8% |
|
March |
36.5 | 21.9 | 5.2 | 0.3 | 0 | 73.8% |
|
April |
47.1 | 33.8 | 21.2 | 0.3 | 0 | 71.1% |
|
May |
63.5 | 46.4 | 34 | 0.2 | 1 | 70.2% |
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June |
70.3 | 57 | 44.1 | 0.6 | 1 | 74.6% |
|
July |
75.4 | 66 | 55.8 | 1.1 | 1 | 72.6% |
|
August |
74.7 | 65.8 | 58.3 | 1.1 | 0 | 73% |
|
September |
71.6 | 58.8 | 44.8 | 0.9 | 1 | 74.2% |
|
October |
57.7 | 45.1 | 35.1 | 1 | 0 | 74.9% |
|
November |
43.9 | 32.7 | 19.8 | 1 | 0 | 74.8% |
|
December |
27.9 | 17.4 | 7.9 | 1.7 | 0 | 77.3% |
May is the most draught at 0.2in / 6.3mm and December the month with the most rain around 1.7in / 43.9mm.
The avg. temperature is around 66°F / 18.9°C, July is the hottest month in a year. January is the coolest with 8.2°F / -13.2°C avg. temperature.
Activities & POI in Thunder Bay
| Type of Activity | List |
|---|---|
| Beach | Attwood Beach, Carnelian Beach, Thomsonite Beach, Greenstone Beach, Little Greenstone Beach, Sand Trap |
| Attraction | Kakabeka Falls, Time Zone, The First Railroad Spike, David Thompson Astronomical Obervatory, Fort William Historical Park |
| Caravan Site | Thunder Bay KOA Holiday, Happy Land Park, Scott and Rohnda's Resort & Campgrounds |
