Weather in Thunder Bay in Summer
| June | July | August | ||||
| Average day temperature: | ||||||
| Average day temperature: | 62.8°F | 69.3°F | 68.9°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 52.5°F | 58.5°F | 59.2°F | |||
| Sea water temperature: | ||||||
| Sea water temperature: | 47.0°F | 59.3°F | 63.4°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 9 days | 12 days | 14 days | |||
| Day length: | ||||||
| Day length: | 15.8 - 16.1 h. | 15.1 - 16.0 h. | 13.4 - 15.0 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 2 days | 2 days | 3 days | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 1.1 in. | 0.9 in. | 1.2 in. | |||
current
weather
weather
| Thunder Bay |
monthly
weather
weather
| Thunder Bay |
sea water
temperature
temperature
| Thunder Bay |
14 days
forecast
forecast
| Thunder Bay |
Day & Night air temperature, °F
Sea water temperature, °F
Precipitation total, in.
Sunny, partly cloudy and cloudy days
weather in
winter
winter
| Thunder Bay |
weather in
spring
spring
| Thunder Bay |
weather in
summer
summer
| Thunder Bay |
weather in
autumn
autumn
| Thunder Bay |
Wind speed, mph
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Thunder Bay
Thunder Bay on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Thunder Bay
Local time: 00:45
December 22, sunday
0300
18°F
NE
4 mph
4 mph
0600
19°F
N
6 mph
6 mph
0900
23°F
N
8 mph
8 mph
1200
25°F
N
11 mph
11 mph
1500
27°F
N
11 mph
11 mph
1800
27°F
N
9 mph
9 mph
2100
27°F
NE
4 mph
4 mph
December 23, monday
0000
27°F
E
3 mph
3 mph
