23.08
sun
sun
Day
55°F
NW 7 mph
Precip.
75%
75%
Night
57°F
N 11 mph
Precip.
88%
88%
24.08
mon
mon
Day
57°F
NW 4 mph
Precip.
90%
90%
Night
57°F
NW 2 mph
Precip.
93%
93%
25.08
tue
tue
Day
64°F
SE 6 mph
Precip.
20%
20%
Night
59°F
S 8 mph
Precip.
30%
30%
26.08
wed
wed
Day
64°F
N 9 mph
Precip.
20%
20%
Night
55°F
NW 6 mph
Precip.
42%
42%
27.08
thu
thu
Day
57°F
NW 9 mph
Precip.
38%
38%
Night
54°F
W 3 mph
Precip.
36%
36%
28.08
fri
fri
Day
59°F
SE 4 mph
Precip.
10%
10%
Night
55°F
S 4 mph
Precip.
15%
15%
29.08
sat
sat
Day
57°F
SE 3 mph
Precip.
14%
14%
Night
55°F
S 2 mph
Precip.
26%
26%
sea water
temperature
temperature
| Ketchikan |
monthly
weather
weather
| Ketchikan |
current
weather
weather
| Ketchikan |
14 days
forecast
forecast
| Ketchikan |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 59.0°F. The highest and lowest sea temperatures during the month were 61.9°F and 57.4°F.
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: 20:58
August 23, sunday
2100
57°F
NW
8 mph
8 mph
August 24, monday
0000
57°F
N
11 mph
11 mph
0300
57°F
NW
12 mph
12 mph
0600
57°F
NW
6 mph
6 mph
0900
57°F
NW
6 mph
6 mph
1200
57°F
NW
4 mph
4 mph
1500
57°F
NW
7 mph
7 mph
1800
57°F
NW
4 mph
4 mph
