Bethany Beach Sea Temperature in January

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

Average water temperature in Bethany Beach for January

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

4.21° C

(39.58° F)

  • highest: 9.78° C (49.6° F)
  • lowest: -1.67° C (28.99° 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 Bethany Beach

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

Water temperatures for January in Bethany Beach in recent years

Day 2024 2023 2022 2021
1 6.45° C 3.87° C 7.34° C 6.14° C
2 6.28° C 3.86° C 6.93° C 5.5° C
3 6.09° C 3.12° C 6.81° C 5.44° C
4 5.88° C 3.62° C 6.76° C 5.43° C
5 5.59° C 3.84° C 6.76° C 5.12° C
6 5.48° C 4.84° C 6.77° C 4.8° C
7 5.46° C 5.03° C 6.33° C 4.63° C
8 5.52° C 5.19° C 5.92° C 4.57° C
9 5.71° C 5.47° C 5.43° C 4.34° C
10 5.99° C 5.38° C 5.11° C 4.18° C
11 6.06° C 5.06° C 4.8° C 4.39° C
12 6.19° C 5.16° C 4.34° C 4.35° C
13 6.45° C 5.75° C 4.18° C 4.68° C
14 6.33° C 5.57° C 4.12° C 4.71° C
15 6.09° C 4.67° C 4.04° C 4.42° C
16 5.66° C 4.72° C 3.92° C 4.36° C
17 5.38° C 4.71° C 3.79° C 4.63° C
18 5.23° C 4.57° C 3.62° C 4.99° C
19 4.55° C 4.82° C 3.46° C 5.21° C
20 4.06° C 4.84° C 3.28° C 5.16° C
21 3.76° C 4.86° C 3.07° C 4.59° C
22 3.37° C 4.83° C 3.07° C 4.05° C
23 2.99° C 4.72° C 3° C 4.48° C
24 3.06° C 4.79° C 2.85° C 4.61° C
25 3.03° C 4.91° C 2.82° C 4.64° C
26 3.03° C 5.17° C 2.57° C 4.06° C
27 3.5° C 5.16° C 2.41° C 3.78° C
28 3.88° C 5° C 2.35° C 3.92° C
29 4.62° C 4.8° C 2.09° C 4.08° C
30 4.67° C 5.04° C 1.88° C 3.97° C
31 5.07° C 4.95° C 1.77° C 3.69° C

Water temperature in January for locations near Bethany Beach

Fenwick Island

United States, North America

5.34 miles away

Indian River Inlet

United States, North America

6.70 miles away

Long Neck

United States, North America

7.59 miles away

Rehoboth Bay

United States, North America

8.68 miles away

Dewey beach

United States, North America

10.65 miles away

Rehoboth Beach

United States, North America

12.58 miles away

Data source and citation

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

  • "Bethany Beach Sea Temperature in January". SeaTemperatures.net. Accessed on May 6, 2024. http://seatemperatures.net/north-america/united-states/bethany-beach-january-temperature/.

  • "Bethany Beach Sea Temperature in January". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/bethany-beach-january-temperature/. Accessed 6 May, 2024

  • Bethany Beach Sea Temperature in January. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/bethany-beach-january-temperature/.