Grand Isle Sea Temperature in January

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

Average water temperature in Grand Isle for January

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

18.56° C

(65.41° F)

  • highest: 22.83° C (73.09° F)
  • lowest: 14.69° C (58.44° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Water temperature range by day in January in Grand Isle

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

Water temperatures for January in Grand Isle in recent years

Day 2024 2023 2022 2021
1 19.83° C 19.05° C 22.8° C 19.68° C
2 19.75° C 19.48° C 22.83° C 19.29° C
3 19.76° C 19.37° C 22.64° C 18.03° C
4 19.81° C 19.69° C 22.09° C 17.52° C
5 19.78° C 19.29° C 21.89° C 17.53° C
6 19.85° C 18.62° C 21.62° C 17.48° C
7 19.26° C 18.92° C 20.88° C 17.74° C
8 19.42° C 18.94° C 20.91° C 18.09° C
9 19.95° C 19° C 21.44° C 18.01° C
10 19.74° C 19.17° C 21.64° C 17.91° C
11 19.68° C 19.58° C 21.56° C 17.92° C
12 19.34° C 19.89° C 21.25° C 18.05° C
13 18.86° C 19.83° C 20.64° C 18.69° C
14 19.09° C 19.71° C 20.37° C 16.95° C
15 19.17° C 19.11° C 20.17° C 16.14° C
16 18.76° C 19.21° C 20.27° C 16.49° C
17 18.02° C 19.35° C 20.08° C 16.7° C
18 17.98° C 19.47° C 19.83° C 16.69° C
19 18.38° C 19.57° C 19.85° C 17.12° C
20 18.34° C 19.51° C 20.06° C 17.57° C
21 18.36° C 19.52° C 19.35° C 17.73° C
22 17.96° C 19.78° C 18.38° C 17.56° C
23 18.48° C 19.45° C 17.79° C 17.7° C
24 18.8° C 19.32° C 17.27° C 17.91° C
25 18.95° C 19.24° C 16.77° C 17.93° C
26 18.67° C 18.76° C 17.07° C 18.04° C
27 18.48° C 18.36° C 17.24° C 18.2° C
28 17.9° C 18.35° C 17.25° C 18.28° C
29 17.55° C 18.98° C 16.83° C 18.24° C
30 17.32° C 19.31° C 16.54° C 18.07° C
31 17.42° C 19.33° C 16.27° C 17.96° C

Data source and citation

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

  • "Grand Isle Sea Temperature in January". SeaTemperatures.net. Accessed on May 2, 2024. http://seatemperatures.net/north-america/united-states/grand-isle-january-temperature/.

  • "Grand Isle Sea Temperature in January". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/grand-isle-january-temperature/. Accessed 2 May, 2024

  • Grand Isle Sea Temperature in January. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/grand-isle-january-temperature/.