Sea Temperature in Ketchikan in December

Complete information on the sea temperature range in the Pacific Ocean in Ketchikan in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Ketchikan. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Ketchikan in December

39°F

MINIMUN

45°F

AVERAGE

50°F

MAXIMUM

Historical Data of Water Temperature in December in Ketchikan

Water Temperature Chart for Pacific Ocean in Ketchikan in December

Sea Temperature Table in Ketchikan in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	45°C	46°C	45°C	46°C
Dec 2	45°C	46°C	45°C	45°C
Dec 3	45°C	45°C	45°C	45°C
Dec 4	45°C	45°C	45°C	45°C
Dec 5	45°C	45°C	43°C	44°C
Dec 6	45°C	45°C	43°C	44°C
Dec 7	45°C	46°C	41°C	44°C
Dec 8	45°C	45°C	46°C	45°C
Dec 9	45°C	45°C	46°C	45°C
Dec 10	45°C	46°C	45°C	45°C
Dec 11	45°C	45°C	45°C	45°C
Dec 12	45°C	45°C	45°C	45°C
Dec 13	45°C	45°C	45°C	44°C
Dec 14	46°C	45°C	43°C	44°C
Dec 15	45°C	46°C	41°C	44°C
Dec 16	45°C	46°C	43°C	44°C
Dec 17	45°C	46°C	43°C	44°C
Dec 18	45°C	46°C	43°C	44°C
Dec 19	43°C	46°C	43°C	44°C
Dec 20	43°C	45°C	43°C	44°C
Dec 21	43°C	45°C	43°C	44°C
Dec 22	43°C	45°C	43°C	43°C
Dec 23	43°C	46°C	43°C	44°C
Dec 24	43°C	45°C	43°C	44°C
Dec 25	43°C	45°C	41°C	43°C
Dec 26	43°C	46°C	41°C	43°C
Dec 27	43°C	46°C	41°C	43°C
Dec 28	45°C	43°C	41°C	43°C
Dec 29	43°C	45°C	43°C	43°C
Dec 30	45°C	45°C	43°C	44°C

Ketchikan Climate and Swimming Opportunities in December

30°F

Average Day Air Temperature

25°F

Average Night Air Temperature

7 in

Precipitation Amount per Month

14 days

Number of Rainy Days

6 hrs

Daylight
per Day

1 hrs

Sunshine
per Day

10 mph

Average Wind Speed

82%

Average
humidity

Ketchikan lies within the Alaska in United States. The average daytime temperature in Ketchikan in December is 30°F (-1°C), while the nighttime average is 25°F (-4°C). There are typically 14 rainy days during the month, with a total precipitation of 6.9 inches (176 mm). The daylight duration in December in Ketchikan is 6 hours, with an average of 1 hours of sunshine per day. The average wind speed in December is 10 mph (16 km/h), and the humidity level is around 82%.

The water temperature in Ketchikan in December ranges from 43°F to 45°F (6°C to 7°C). At the beginning of the month, the average temperature is around 45°F (7°C), shifting to 45°F (7°C) by mid-December and reaching 43°F (6°C) in the last ten days. Overall, the average sea temperature in Ketchikan for December is 45°F (7°C). Very cold water with low air temperature creates extreme swimming conditions. Hypothermia can occur quickly, making it unsafe for most people.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Ketchikan

What is the sea temperature in Ketchikan in December?

The water temperature in the Pacific Ocean in Ketchikan in December ranges from 43°F to 45°F (6°C to 7°C).

Is it possible to swim in the Pacific Ocean in Ketchikan in December?

The average sea temperature in Ketchikan in December is 45°F (7°C), and the air temperature is 30°F (-1°C), so very cold water with low air temperature creates extreme swimming conditions. Hypothermia can occur quickly, making it unsafe for most people.