Sea Temperature in Annapolis in December

Complete information on the sea temperature range in the Atlantic Ocean in Annapolis in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Annapolis. 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 Annapolis in December

37°F

MINIMUN

47°F

AVERAGE

57°F

MAXIMUM

Historical Data of Water Temperature in December in Annapolis

Water Temperature Chart for Atlantic Ocean in Annapolis in December

Sea Temperature Table in Annapolis in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	50°C	48°C	48°C	48°C
Dec 2	50°C	48°C	50°C	49°C
Dec 3	50°C	48°C	48°C	49°C
Dec 4	48°C	50°C	50°C	49°C
Dec 5	46°C	48°C	48°C	48°C
Dec 6	46°C	48°C	48°C	48°C
Dec 7	46°C	48°C	48°C	48°C
Dec 8	45°C	45°C	48°C	46°C
Dec 9	45°C	45°C	46°C	46°C
Dec 10	45°C	46°C	48°C	46°C
Dec 11	45°C	48°C	48°C	47°C
Dec 12	45°C	46°C	48°C	46°C
Dec 13	45°C	46°C	46°C	46°C
Dec 14	45°C	46°C	46°C	46°C
Dec 15	45°C	46°C	46°C	46°C
Dec 16	43°C	46°C	46°C	46°C
Dec 17	45°C	45°C	46°C	46°C
Dec 18	43°C	46°C	45°C	46°C
Dec 19	43°C	46°C	45°C	46°C
Dec 20	43°C	46°C	45°C	45°C
Dec 21	43°C	46°C	45°C	45°C
Dec 22	41°C	45°C	45°C	44°C
Dec 23	41°C	45°C	43°C	43°C
Dec 24	41°C	43°C	43°C	43°C
Dec 25	39°C	43°C	41°C	42°C
Dec 26	41°C	43°C	41°C	42°C
Dec 27	41°C	43°C	41°C	42°C
Dec 28	41°C	45°C	39°C	42°C
Dec 29	41°C	45°C	39°C	42°C
Dec 30	41°C	43°C	39°C	42°C

Annapolis Climate and Swimming Opportunities in December

46°F

Average Day Air Temperature

30°F

Average Night Air Temperature

3 in

Precipitation Amount per Month

11 days

Number of Rainy Days

9 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

7 mph

Average Wind Speed

66%

Average
humidity

Annapolis lies within the Maryland in United States. The average daytime temperature in Annapolis in December is 47°F (8°C), while the nighttime average is 30°F (-1°C). There are typically 11 rainy days during the month, with a total precipitation of 3.2 inches (81 mm). The daylight duration in December in Annapolis is 9 hours, with an average of 4 hours of sunshine per day. The average wind speed in December is 7 mph (12 km/h), and the humidity level is around 66%.

The water temperature in Annapolis in December ranges from 41°F to 50°F (5°C to 10°C). At the beginning of the month, the average temperature is around 48°F (9°C), shifting to 46°F (8°C) by mid-December and reaching 43°F (6°C) in the last ten days. Overall, the average sea temperature in Annapolis for December is 46°F (8°C). Still too cold for most swimmers. Only short dips in proper gear are advisable.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Annapolis

What is the sea temperature in Annapolis in December?

The water temperature in the Atlantic Ocean in Annapolis in December ranges from 41°F to 50°F (5°C to 10°C).

Is it possible to swim in the Atlantic Ocean in Annapolis in December?

The average sea temperature in Annapolis in December is 46°F (8°C), and the air temperature is 47°F (8°C), so still too cold for most swimmers. Only short dips in proper gear are advisable.