Harwich Port Sea Temperature in December

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

Average water temperature in Harwich Port for December

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

7.93° C

(46.27° F)

  • highest: 10.65° C (51.17° F)
  • lowest: 4.33° C (39.79° 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 Harwich Port

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

Water temperatures for December in Harwich Port in recent years

Day 2024 2023 2022 2021
1 0° C 9.13° C 9.91° C 9.32° C
2 0° C 9.16° C 9.87° C 9.35° C
3 0° C 8.83° C 9.84° C 9.39° C
4 0° C 8.9° C 9.86° C 9.36° C
5 0° C 8.9° C 9.76° C 9.28° C
6 0° C 8.96° C 9.8° C 9.18° C
7 0° C 8.6° C 9.93° C 9° C
8 0° C 8.47° C 9.98° C 8.92° C
9 0° C 8.33° C 9.82° C 8.78° C
10 0° C 8.4° C 9.56° C 8.82° C
11 0° C 8.46° C 9.3° C 8.65° C
12 0° C 8.34° C 8.94° C 8.48° C
13 0° C 8.23° C 8.76° C 8.6° C
14 0° C 8.03° C 8.51° C 8.64° C
15 0° C 7.98° C 8.24° C 8.57° C
16 0° C 7.99° C 7.95° C 8.62° C
17 0° C 7.93° C 7.78° C 8.72° C
18 0° C 8.14° C 7.7° C 8.66° C
19 0° C 8.2° C 7.49° C 8.66° C
20 0° C 7.97° C 7.25° C 8.4° C
21 0° C 7.73° C 7.05° C 8.33° C
22 0° C 7.45° C 6.97° C 8.26° C
23 0° C 7.23° C 7.03° C 8.05° C
24 0° C 7.41° C 6.96° C 8.07° C
25 0° C 7.34° C 6.91° C 7.99° C
26 0° C 7.38° C 6.6° C 7.9° C
27 0° C 7.09° C 6.4° C 7.53° C
28 0° C 7.21° C 6.31° C 7.46° C
29 0° C 7.39° C 6.22° C 7.46° C
30 0° C 7.5° C 6.1° C 7.85° C
31 0° C 7.45° C 5.91° C 7.76° C

Water temperature in December for locations near Harwich Port

Dennis Port

United States, North America

3.67 miles away

Chatham

United States, North America

5.20 miles away

West Dennis

United States, North America

5.88 miles away

Bass River

United States, North America

6.14 miles away

Brewster

United States, North America

6.38 miles away

South Yarmouth

United States, North America

6.49 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Harwich Port 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.

  • "Harwich Port Sea Temperature in December". SeaTemperatures.net. Accessed on May 7, 2024. http://seatemperatures.net/north-america/united-states/harwich-port-december-temperature/.

  • "Harwich Port Sea Temperature in December". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/harwich-port-december-temperature/. Accessed 7 May, 2024

  • Harwich Port Sea Temperature in December. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/harwich-port-december-temperature/.