Swimming in Ketchikan in december 2026: Average sea temperature in december and tide times in december 2026
Average sea temperature in Ketchikan in december 2026.
In december, according to seasonal norms, the sea temperature in Ketchikan is:
Minimum: 45°F
Average: 46°F
Maximum: 48°F
Other useful seasonal weather averages in december:
- Outside temperature: 32°F to 36°F
- Most common weather: "Snow showers"
- The wind blows at -1.9mph
- It rains a total of 16in, over 15 day(s).
Should we swim in Ketchikan in december?
No... The water temperature in Ketchikan in december is freezing
You won't be able to swim in Ketchikan in december! The water temperature is freezing, reaching as low as 45°F (and only 48°F at best)! Our advice: if you are going to Ketchikan this month, plan to sightsee and forget the beach!
Note also that in december, the climate is very bad with an average outside temperature of 34°F, 15.9in of precipitation (over 15 days) and 86.69 % humidity.
Water and normal seasonal temperatures in Ketchikan in december
| December | |||
| Average sea temperature | 46°F | ||
| Minimum sea temperature | 45°F | ||
| Maximum sea temperature | 48°F | ||
| Average outside temperature | 34°F | ||
| Maximum outside temperature | 36°F | ||
| Minimum outside temperature | 32°F | ||
| Wind speed | 10.6mph | ||
| Wind temperature | 27°F | ||
| Precipitation | 16in | ||
| Number of days of rain | 15 jour(s) (47%) | ||
| Humidity | 87% | ||
| Visibility in kilometers | 8.13km | ||
| Cloud cover | 64% | ||
| Our opinion | freezing swimming |
Chart of the tides in december 2026
Tide times in december 2026 in Ketchikan
Swim elsewhere in Alaska in december
| City | Average T° | Min. T° | Max. T° | Our opinion | Anchorage in december | 40°F | 43°F | freezing swimming | Anchor Point in december | 39°F | 43°F | freezing swimming | Dillingham in december | 36°F | 41°F | freezing swimming | Dutch Harbor in december | 42°F | 44°F | freezing swimming |