Thunder Bay Weather: September
 |
Average Day Temperature: | 64.2°F |
|
Average Night Temperature: | 53.8°F |
|
Sea Water Temperature: | 61.4°F |
|
Number of Sunny Days: | 15 days |
| Sunshine Hours: | 11.7 - 13.4 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 0.8 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Thunder Bay |
Sea Water
Temperature
Temperature
| Thunder Bay |
Air Temperature in September, °F
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
| Day Temperature | Night Temperature |
The highest day temperature in September 2024 was 86°F. The lowest night temperature was 38°F. The average values for day and night temperatures during September were 69.7°F и 55.6°F respectivly.
Thunder Bay Water Sea Temperature in September, °F
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
51
54
57
60
63
66
69
72
The average sea surface temperature in September 2024 for Thunder Bay was 65.2°F. The maximum and minimum values were 62.4°F and 67.6°F respectively.
Sunny, Cloudy and Gloomy days
| Sunny days | |
| Cloudy days | |
| Gloomy days |
50%
27%
23%
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.2
0.4
0.7
0.9
1.1
1.3
1.6
Precipitation total in September for Thunder Bay is 0.8 in.
Wind Speed in September, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.6
3.3
4.9
6.6
8.2
9.9
11.5
13.2
The average wind speed in September is 7.0 mph.
Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.6
3.3
4.9
6.5
8.2
9.8
11.4
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Thunder Bay in September is 7.8 hours.
Thunder Bay on the Weather Map
Canada Resorts:
NAME
F°
| Halifax |  |
+30 |
| Moncton | |
+30 |
| Montreal | |
+40 |
| Niagara Falls | |
+38 |
| Ottawa | |
+34 |
| Prince Edward Island | |
+30 |
| Quebec | |
+32 |
| Saint John | |
+30 |
| St. John's |  |
+24 |
| Sydney | |
+28 |
| Toronto | |
+34 |
| Vancouver | |
+58 |
| Victoria | |
+54 |
| Winnipeg | |
+26 |
| Yellowknife |  |
+12 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Thunder Bay
Local time: 03:10
06 apr, sunday
| 0600 |  |
26°F | E 4 mph |
| 0900 |  |
28°F | SE 4 mph |
| 1200 | |
34°F | SE 6 mph |
| 1500 | |
34°F | SE 5 mph |
| 1800 | |
32°F | S 7 mph |
| 2100 | |
26°F | S 12 mph |
07 apr, monday
| 0000 |  |
18°F | S 11 mph |
| 0300 |  |
16°F | S 11 mph |