Current sea water temperature:
+52.2°F
| Minimum sea water temperature in October: | 54.5°F |
| Maximum sea water temperature in October: | 47.1°F |
| Average sea water temperature in October: | 50.8°F |
| more information | |
14 days
forecast
forecast
| Ketchikan |
monthly
weather
weather
| Ketchikan |
Sea water temperature for the last 10 days:
| October 8 | 52.2°F | October 3 | 52.5°F |
| October 7 | 52.5°F | October 2 | 52.5°F |
| October 6 | 52.7°F | October 1 | 52.7°F |
| October 5 | 52.5°F | September 30 | 52.3°F |
| October 4 | 52.5°F | September 29 | 53.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Ketchikan?
Based on the data about daily sea water temperature for the last three years the warmest sea in Ketchikan was noticed in August, July and September.
Monthly Sea Temperatures in Ketchikan, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 59.1°F. The highest and lowest sea temperatures during the month were 61.9°F and 57.4°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 58.1°F. The highest and lowest sea temperatures during the month were 60.4°F and 55.9°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 55.9°F. The highest and lowest sea temperatures during the month were 58.1°F and 52.3°F.
current
weather
weather
| Ketchikan |
weather in
October
October
| Ketchikan |
Best time for vacation in Ketchikan
Ketchikan on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Ketchikan
Local time: 03:36
October 08, thursday
0600
50°F
SE
4 mph
4 mph
0900
48°F
S
5 mph
5 mph
1200
50°F
N
1 mph
1 mph
1500
50°F
S
1 mph
1 mph
1800
48°F
S
12 mph
12 mph
2100
46°F
S
11 mph
11 mph
October 09, friday
0000
46°F
SE
13 mph
13 mph
0300
46°F
S
12 mph
12 mph
