15.09
tue
tue
Day
39°F
SE 12 mph
Precip.
13%
13%
Night
34°F
SE 7 mph
Precip.
15%
15%
16.09
wed
wed
Day
39°F
N 5 mph
Precip.
5%
5%
Night
37°F
W 13 mph
Precip.
18%
18%
17.09
thu
thu
Day
45°F
NW 4 mph
Precip.
42%
42%
Night
41°F
S 6 mph
Precip.
15%
15%
18.09
fri
fri
Day
48°F
NE 7 mph
Precip.
7%
7%
Night
45°F
W 9 mph
Precip.
9%
9%
19.09
sat
sat
Day
46°F
NW 13 mph
Precip.
35%
35%
Night
52°F
E 8 mph
Precip.
9%
9%
20.09
sun
sun
Day
55°F
NE 4 mph
Precip.
13%
13%
Night
54°F
NW 8 mph
Precip.
24%
24%
21.09
mon
mon
Day
54°F
NE 12 mph
Precip.
2%
2%
Night
50°F
S 7 mph
Precip.
9%
9%
22.09
tue
tue
Day
46°F
S 8 mph
Precip.
4%
4%
Night
45°F
SW 4 mph
Precip.
17%
17%
23.09
wed
wed
Day
43°F
NW 6 mph
Precip.
13%
13%
Night
41°F
W 9 mph
Precip.
18%
18%
24.09
thu
thu
Day
43°F
W 14 mph
Precip.
15%
15%
Night
39°F
SW 9 mph
Precip.
8%
8%
25.09
fri
fri
Day
41°F
W 9 mph
Precip.
3%
3%
Night
37°F
W 6 mph
Precip.
7%
7%
26.09
sat
sat
Day
43°F
NW 8 mph
Precip.
4%
4%
Night
39°F
W 4 mph
Precip.
7%
7%
27.09
sun
sun
Day
43°F
S 5 mph
Precip.
9%
9%
Night
39°F
S 9 mph
Precip.
7%
7%
28.09
mon
mon
Day
43°F
SE 12 mph
Precip.
13%
13%
Night
43°F
SE 10 mph
Precip.
15%
15%
sea water
temperature
temperature
| Yellowknife |
monthly
weather
weather
| Yellowknife |
current
weather
weather
| Yellowknife |
7 days
forecast
forecast
| Yellowknife |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 54.8°F. The highest and lowest sea temperatures during the month were 56.8°F and 52.0°F.
Air temperature in Yellowknife, °F
Precipitation total in Yellowknife, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Yellowknife
Yellowknife on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Yellowknife
Local time: 11:54
September 15, tuesday
1200
39°F
SE
12 mph
12 mph
1500
39°F
SE
12 mph
12 mph
1800
39°F
SE
13 mph
13 mph
2100
36°F
SE
7 mph
7 mph
September 16, wednesday
0000
34°F
SE
7 mph
7 mph
0300
32°F
SE
6 mph
6 mph
0600
32°F
SE
4 mph
4 mph
0900
32°F
SW
1 mph
1 mph
