Current sea water temperature:
+43.0°F
| Minimum sea water temperature in January: | 44.2°F |
| Maximum sea water temperature in January: | 41.4°F |
| Average sea water temperature in January: | 42.7°F |
| more information | |
14 days
forecast
forecast
| Ketchikan |
monthly
weather
weather
| Ketchikan |
Sea water temperature for the last 10 days:
| January 12 | 43.0°F | January 7 | 43.2°F |
| January 11 | 43.0°F | January 6 | 43.3°F |
| January 10 | 43.0°F | January 5 | 43.7°F |
| January 9 | 43.2°F | January 4 | 43.2°F |
| January 8 | 43.3°F | January 3 | 43.3°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 59.5°F. The highest and lowest sea temperatures during the month were 61.5°F and 57.7°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 57.5°F. The highest and lowest sea temperatures during the month were 61.3°F and 55.4°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.
current
weather
weather
| Ketchikan |
weather in
January
January
| Ketchikan |
Best time for vacation in Ketchikan
Ketchikan on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Ketchikan
Local time: 20:06
January 12, monday
2100
45°F
NW
9 mph
9 mph
January 13, tuesday
0000
43°F
NW
8 mph
8 mph
0300
43°F
W
7 mph
7 mph
0600
45°F
W
6 mph
6 mph
0900
45°F
W
7 mph
7 mph
1200
46°F
NW
16 mph
16 mph
1500
46°F
NW
19 mph
19 mph
1800
45°F
NW
25 mph
25 mph
