Measurements:
°C
°F
CURRENT WEATHER
04:59
Thunder Bay
66°F
N 1 mph
Feels like: 66°F
Precip: 14%
World Resorts Canada Thunder Bay Weather

14 Day Weather Forecast

07.30
thu
DAY
86°F
NE 7 mph
precip
8%
NIGHT
72°F
SE 9 mph
precip
9%
07.31
fri
DAY
82°F
SE 2 mph
precip
3%
NIGHT
62°F
S 6 mph
precip
12%
08.01
sat
DAY
72°F
SW 7 mph
precip
5%
NIGHT
56°F
S 3 mph
precip
9%
08.02
sun
DAY
68°F
NW 7 mph
precip
5%
NIGHT
52°F
W 2 mph
precip
8%
08.03
mon
DAY
74°F
N 9 mph
precip
6%
NIGHT
64°F
NW 4 mph
precip
18%
08.04
tue
DAY
60°F
SE 7 mph
precip
62%
NIGHT
52°F
NE 2 mph
precip
18%
08.05
wed
DAY
72°F
NE 6 mph
precip
2%
NIGHT
56°F
NW 2 mph
precip
12%
08.06
thu
DAY
70°F
N 7 mph
precip
52%
NIGHT
56°F
SE 5 mph
precip
8%
08.07
fri
DAY
68°F
E 7 mph
precip
3%
NIGHT
60°F
NW 2 mph
precip
5%
08.08
sat
DAY
74°F
N 5 mph
precip
2%
NIGHT
56°F
NW 2 mph
precip
6%
08.09
sun
DAY
70°F
W 6 mph
precip
4%
NIGHT
56°F
W 5 mph
precip
43%
08.10
mon
DAY
62°F
W 6 mph
precip
79%
NIGHT
62°F
NE 2 mph
precip
43%
08.11
tue
DAY
66°F
W 2 mph
precip
36%
NIGHT
60°F
NW 2 mph
precip
43%
08.12
wed
DAY
78°F
NE 3 mph
precip
8%
NIGHT
70°F
S 4 mph
precip
4%

Thunder Bay Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Thunder Bay was 51.8°F. The maximum and minimum values were 44.2°F and 61.2°F respectively.

Thunder Bay on the Weather Map

Best Time to Visit Thunder Bay
The most sunny months:
July 14 days
September 14 days
August 14 days
The most warm months:
July 73.4 °F
August 71.2 °F
June 65.3 °F
Warmest sea temperature:
August 64.9 °F
September 61.3 °F
July 59.4 °F
The most cold months:
January 9.8 °F
February 11.1 °F
December 17.9 °F
The most rainy months:
September 2 days
April 2 days
August 2 days
The most windy months:
November 9 mph
December 9 mph
April 8 mph
more details
Canada Resorts:
NAME
F°
Barrie +58
Halifax +64
Kingston +66
Montreal +66
Ottawa +66
Prince Edward Island +64
Quebec +62
Saint John +64
St. John's +54
Sydney +58
Toronto +62
Vancouver +58
Victoria +56
Winnipeg +76
Yellowknife +54
all resorts
24 Hours Weather Forecast
Thunder Bay
Local time: 04:59
30 jul, thursday
0600 66°F
N
1 mph
0900 70°F
NE
3 mph
1200 86°F
NE
7 mph
1500 86°F
NE
6 mph
1800 84°F
SE
6 mph
2100 74°F
NE
12 mph
31 jul, friday
0000 72°F
SE
9 mph
0300 68°F
SE
4 mph