13.09
sun
sun
Day
59°F
SE 11 mph
Precip.
4%
4%
Night
54°F
S 6 mph
Precip.
30%
30%
14.09
mon
mon
Day
61°F
E 1 mph
Precip.
18%
18%
Night
54°F
W 2 mph
Precip.
16%
16%
15.09
tue
tue
Day
59°F
SE 5 mph
Precip.
17%
17%
Night
52°F
S 6 mph
Precip.
18%
18%
16.09
wed
wed
Day
59°F
SE 7 mph
Precip.
5%
5%
Night
55°F
SE 5 mph
Precip.
25%
25%
17.09
thu
thu
Day
59°F
SE 4 mph
Precip.
24%
24%
Night
55°F
S 4 mph
Precip.
38%
38%
18.09
fri
fri
Day
57°F
NW 7 mph
Precip.
23%
23%
Night
54°F
NW 7 mph
Precip.
47%
47%
19.09
sat
sat
Day
55°F
NW 9 mph
Precip.
40%
40%
Night
52°F
W 4 mph
Precip.
32%
32%
20.09
sun
sun
Day
54°F
NW 7 mph
Precip.
36%
36%
Night
54°F
N 12 mph
Precip.
76%
76%
21.09
mon
mon
Day
55°F
N 6 mph
Precip.
24%
24%
Night
50°F
NW 5 mph
Precip.
29%
29%
22.09
tue
tue
Day
52°F
W 2 mph
Precip.
24%
24%
Night
48°F
W 15 mph
Precip.
73%
73%
23.09
wed
wed
Day
52°F
NW 30 mph
Precip.
31%
31%
Night
50°F
E 14 mph
Precip.
47%
47%
24.09
thu
thu
Day
54°F
N 5 mph
Precip.
5%
5%
Night
46°F
W 7 mph
Precip.
30%
30%
25.09
fri
fri
Day
48°F
NW 23 mph
Precip.
77%
77%
Night
46°F
W 11 mph
Precip.
88%
88%
26.09
sat
sat
Day
50°F
W 4 mph
Precip.
27%
27%
Night
48°F
W 5 mph
Precip.
27%
27%
sea water
temperature
temperature
| Ketchikan |
monthly
weather
weather
| Ketchikan |
current
weather
weather
| Ketchikan |
7 days
forecast
forecast
| Ketchikan |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 57.1°F. The highest and lowest sea temperatures during the month were 63.1°F and 52.9°F.
Air temperature in Ketchikan, °F
Precipitation total in Ketchikan, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Ketchikan
Ketchikan on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Ketchikan
Local time: 14:07
September 13, sunday
1500
63°F
SE
12 mph
12 mph
1800
59°F
SE
8 mph
8 mph
2100
55°F
S
6 mph
6 mph
September 14, monday
0000
54°F
S
6 mph
6 mph
0300
54°F
S
4 mph
4 mph
0600
52°F
S
4 mph
4 mph
0900
55°F
S
2 mph
2 mph
1200
61°F
E
1 mph
1 mph
