Roslyn Sea Temperature in January

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

Average water temperature in Roslyn for January

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

6.05° C

(42.89° F)

  • highest: 10.2° C (50.36° F)
  • lowest: 2.27° C (36.09° 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 January in Roslyn

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

Water temperatures for January in Roslyn in recent years

Day 2024 2023 2022 2021
1 7.91° C 6.56° C 8.9° C 7.4° C
2 7.7° C 6.45° C 9.33° C 7.24° C
3 7.61° C 6.93° C 8.64° C 7.51° C
4 7.41° C 5.28° C 8.3° C 7.13° C
5 7.41° C 5.91° C 8.15° C 6.62° C
6 7.33° C 6.96° C 8.08° C 7.01° C
7 7.25° C 6.96° C 7.92° C 6.96° C
8 6.99° C 7.03° C 7.89° C 6.77° C
9 6.91° C 6.99° C 7.62° C 6.69° C
10 6.84° C 6.92° C 7.55° C 6.74° C
11 6.73° C 6.7° C 7.48° C 6.29° C
12 6.66° C 6.46° C 7.4° C 6.15° C
13 6.95° C 6.81° C 7.25° C 5.84° C
14 6.85° C 7.07° C 7.2° C 5.51° C
15 6.8° C 6.43° C 6.96° C 5.38° C
16 6.33° C 6.32° C 6.69° C 5.75° C
17 6.27° C 6.2° C 6.24° C 6.02° C
18 6.2° C 6.01° C 5.91° C 6.03° C
19 5.67° C 5.95° C 5.87° C 6.06° C
20 5.41° C 5.88° C 6.16° C 6.18° C
21 5.37° C 5.85° C 6.02° C 6.12° C
22 5.34° C 5.91° C 5.73° C 5.88° C
23 5.33° C 5.91° C 5.59° C 5.83° C
24 5.03° C 5.83° C 5.36° C 6.12° C
25 3.75° C 5.89° C 5.09° C 6.31° C
26 3.93° C 6.05° C 4.89° C 6.28° C
27 4.49° C 5.96° C 4.76° C 6.35° C
28 4.68° C 5.83° C 4.69° C 6.18° C
29 4.99° C 5.77° C 4.44° C 5.78° C
30 4.95° C 5.81° C 4.22° C 5.46° C
31 5.2° C 5.91° C 4.12° C 4.94° C

Water temperature in January for locations near Roslyn

Hempstead Harbor

United States, North America

1.85 miles away

Glenwood Landing

United States, North America

2.22 miles away

Plandome

United States, North America

2.79 miles away

Port Washington

United States, North America

3.05 miles away

Sea Cliff

United States, North America

3.41 miles away

Port Washington North

United States, North America

4.09 miles away

Data source and citation

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

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

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

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