Greenwich Sea Temperature in January

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

Average water temperature in Greenwich for January

The average, high, and low temperatures below should help you if you can swim in the water in Greenwich in January.

3.9° C

(39.01° F)

  • highest: 8.47° C (47.25° F)
  • lowest: -0.9° C (30.38° F)

Water at this temperature is freezing cold, can cause pain and takes your breath away. Unless you are very experienced and are under strict supervision, swimming in this water for more than a few minutes can be very dangerous. Be careful, stay safe, and enjoy the rush of endorphins and exhileration from a brief cold water swim.

Water temperature range by day in January in Greenwich

The chart below shows the range of low and high temperatures by day for the month of January in Greenwich.

Water temperatures for January in Greenwich in recent years

Day 2024 2023 2022 2021
1 6.85° C 5.19° C 7.58° C 4.5° C
2 6.78° C 5.11° C 7.87° C 4.14° C
3 6.71° C 5.21° C 7.21° C 4.26° C
4 6.55° C 4.4° C 6.99° C 3.96° C
5 6.61° C 4.61° C 6.92° C 3.66° C
6 6.52° C 5.22° C 6.81° C 3.8° C
7 6.33° C 5.36° C 6.63° C 3.85° C
8 6.08° C 5.4° C 6.48° C 3.58° C
9 6° C 5.38° C 6.19° C 3.43° C
10 6.06° C 5.18° C 5.99° C 3.39° C
11 6° C 4.75° C 5.76° C 2.81° C
12 5.94° C 4.6° C 5.46° C 2.63° C
13 6.18° C 5.07° C 5.18° C 2.37° C
14 6.04° C 5.19° C 4.96° C 2.18° C
15 5.85° C 4.66° C 4.8° C 2.15° C
16 5.28° C 4.7° C 4.63° C 2.71° C
17 5.21° C 4.73° C 4.38° C 3.21° C
18 5.11° C 4.65° C 4.1° C 3.35° C
19 4.61° C 4.61° C 4.02° C 3.06° C
20 4.17° C 4.51° C 4.06° C 3.43° C
21 3.95° C 4.51° C 3.84° C 3.4° C
22 3.77° C 4.56° C 3.58° C 3.43° C
23 3.72° C 4.67° C 3.37° C 3.36° C
24 3.56° C 4.73° C 3.15° C 3.76° C
25 2.23° C 4.82° C 2.97° C 3.87° C
26 2.58° C 4.97° C 2.91° C 3.88° C
27 3.08° C 4.91° C 2.85° C 4.08° C
28 3.08° C 4.87° C 2.85° C 3.87° C
29 3.41° C 4.91° C 2.62° C 3.4° C
30 3.19° C 5.09° C 2.46° C 3.05° C
31 3.23° C 5.14° C 2.26° C 2.77° C

Water temperature in January for locations near Greenwich

Cos Cob

United States, North America

1.58 miles away

Byram

United States, North America

2.02 miles away

Old Greenwich

United States, North America

3.29 miles away

Rye

United States, North America

4.28 miles away

Stamford

United States, North America

5.03 miles away

Mamaroneck

United States, North America

7.64 miles away

Data source and citation

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

  • "Greenwich Sea Temperature in January". SeaTemperatures.net. Accessed on May 5, 2024. http://seatemperatures.net/north-america/united-states/greenwich-january-temperature/.

  • "Greenwich Sea Temperature in January". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/greenwich-january-temperature/. Accessed 5 May, 2024

  • Greenwich Sea Temperature in January. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/greenwich-january-temperature/.