Saint Helier Sea Temperature in January

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

Average water temperature in Saint Helier for January

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

10.38° C

(50.69° F)

  • highest: 12.01° C (53.62° F)
  • lowest: 8.08° C (46.54° F)

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.

Water temperature range by day in January in Saint Helier

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

Water temperatures for January in Saint Helier in recent years

Day 2024 2023 2022 2021
1 11.7° C 11.64° C 11.24° C 11.59° C
2 11.79° C 11.54° C 11.26° C 11.45° C
3 11.74° C 11.36° C 11.25° C 11.39° C
4 11.58° C 11° C 11.09° C 11.87° C
5 11.47° C 11° C 11.03° C 11.73° C
6 11.41° C 11.56° C 10.98° C 10.71° C
7 11.23° C 11.51° C 11.06° C 10.69° C
8 11.04° C 11.43° C 11.15° C 10.1° C
9 10.92° C 11.38° C 10.71° C 9.9° C
10 10.79° C 11.31° C 10.68° C 9.89° C
11 10.67° C 11.15° C 10.75° C 10.07° C
12 10.64° C 11.11° C 10.74° C 10.18° C
13 10.49° C 11.36° C 10.68° C 9.97° C
14 10.55° C 11.23° C 10.6° C 9.86° C
15 10.51° C 11.09° C 10.45° C 10.02° C
16 10.39° C 11.13° C 10.46° C 10.36° C
17 10.29° C 11.09° C 10.43° C 10.38° C
18 10.25° C 10.92° C 10.3° C 10.69° C
19 10.19° C 10.72° C 10.24° C 10.64° C
20 10.03° C 10.62° C 10.29° C 10.16° C
21 9.89° C 10.58° C 10.28° C 9.92° C
22 9.82° C 10.5° C 10.29° C 9.92° C
23 9.75° C 10.37° C 10.19° C 9.89° C
24 9.74° C 10.34° C 10.25° C 9.94° C
25 9.98° C 10.07° C 10.21° C 9.92° C
26 9.95° C 9.97° C 10.03° C 9.91° C
27 9.89° C 9.98° C 10.01° C 10.07° C
28 9.69° C 9.99° C 10.08° C 9.77° C
29 9.69° C 10° C 10.16° C 9.6° C
30 9.95° C 9.93° C 10.18° C 9.74° C
31 9.94° C 9.98° C 10.19° C 9.79° C

Water temperature in January for locations near Saint Helier

Jersey

Channel Islands, Europe

2.73 miles away

St Ouen

Channel Islands, Europe

6.68 miles away

Sark

Channel Islands, Europe

20.93 miles away

Barneville-Carteret

France, Europe

20.95 miles away

Portbail

France, Europe

21.11 miles away

Bailiwick of Guernsey

Channel Islands, Europe

21.31 miles away

Data source and citation

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

  • "Saint Helier Sea Temperature in January". SeaTemperatures.net. Accessed on May 2, 2024. http://seatemperatures.net/europe/channel-islands/saint-helier-january-temperature/.

  • "Saint Helier Sea Temperature in January". SeaTemperatures.net, http://seatemperatures.net/europe/channel-islands/saint-helier-january-temperature/. Accessed 2 May, 2024

  • Saint Helier Sea Temperature in January. SeaTemperatures.net. Retrieved from http://seatemperatures.net/europe/channel-islands/saint-helier-january-temperature/.