Washington DC Sea Temperature in December

Looking to find out what the average sea water temperature in Washington DC is for December? Find out what the lowest, highest, and average water temperatures are for Washington DC over the past 10 years.

Average water temperature in Washington DC for December

The average, high, and low temperatures below should help you if you can swim in the water in Washington DC in December.

7.43° C

(45.37° F)

  • highest: 11.87° C (53.37° F)
  • lowest: 3.14° C (37.65° F)

This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.

Water temperature range by day in December in Washington DC

The chart below shows the range of low and high temperatures by day for the month of December in Washington DC.

Water temperatures for December in Washington DC in recent years

Day 2024 2023 2022 2021
1 0° C 8.59° C 9.74° C 7.81° C
2 0° C 8.62° C 9.36° C 8.11° C
3 0° C 9.32° C 9.2° C 8.27° C
4 0° C 8.28° C 8.98° C 8.3° C
5 0° C 8.23° C 8.71° C 8.37° C
6 0° C 8.03° C 8.65° C 8.54° C
7 0° C 7.62° C 8.54° C 8.51° C
8 0° C 7.4° C 8.56° C 8.3° C
9 0° C 7.53° C 8.61° C 8.06° C
10 0° C 7.55° C 8.48° C 7.96° C
11 0° C 7.84° C 8.27° C 8.16° C
12 0° C 7.66° C 8.02° C 8.18° C
13 0° C 7.46° C 7.71° C 8.03° C
14 0° C 7.19° C 7.36° C 7.88° C
15 0° C 7.09° C 7.15° C 7.7° C
16 0° C 6.94° C 6.99° C 7.68° C
17 0° C 7.07° C 6.88° C 7.91° C
18 0° C 7.71° C 6.74° C 8.83° C
19 0° C 7.53° C 6.46° C 8.24° C
20 0° C 6.89° C 6.14° C 7.81° C
21 0° C 6.61° C 5.79° C 7.49° C
22 0° C 6.44° C 5.75° C 7.07° C
23 0° C 6.32° C 5.85° C 6.69° C
24 0° C 6.38° C 5.42° C 6.58° C
25 0° C 6.59° C 4.64° C 6.97° C
26 0° C 6.75° C 3.85° C 7.31° C
27 0° C 7.04° C 3.33° C 7.19° C
28 0° C 7.27° C 3.19° C 7.08° C
29 0° C 7.33° C 3.14° C 7.23° C
30 0° C 7.23° C 3.57° C 7.52° C
31 0° C 7.05° C 3.47° C 7.73° C

Water temperature in December for locations near Washington DC

Open Stage

Maldives, Asia

0.22 miles away

Gulf of Saros

Turkey, Middle East

0.25 miles away

Xiazhi

China, Asia

0.72 miles away

Pis

Micronesia, Australia and Oceania

0.72 miles away

Fontein

Indonesia, Asia

1.43 miles away

Edgewater

United States, North America

25.58 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Washington DC comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.

  • "Washington DC Sea Temperature in December". SeaTemperatures.net. Accessed on May 1, 2024. http://seatemperatures.net/north-america/united-states/washington-dc-december-temperature/.

  • "Washington DC Sea Temperature in December". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/washington-dc-december-temperature/. Accessed 1 May, 2024

  • Washington DC Sea Temperature in December. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/washington-dc-december-temperature/.