Cape Henlopen Sea Temperature in October

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

Average water temperature in Cape Henlopen for October

The average, high, and low temperatures below should help you if you can swim in the water in Cape Henlopen in October.

18.61° C

(65.5° F)

  • highest: 23.67° C (74.61° F)
  • lowest: 14.18° C (57.52° 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 October in Cape Henlopen

The chart below shows the range of low and high temperatures by day for the month of October in Cape Henlopen.

Water temperatures for October in Cape Henlopen in recent years

Day 2024 2023 2022 2021
1 0° C 20.21° C 19.71° C 21.35° C
2 0° C 20.04° C 19.47° C 21.21° C
3 0° C 19.98° C 19.03° C 21.03° C
4 0° C 19.84° C 18.64° C 21.07° C
5 0° C 19.84° C 17.83° C 21.15° C
6 0° C 19.97° C 17.4° C 20.96° C
7 0° C 19.91° C 16.96° C 20.96° C
8 0° C 19.6° C 16.49° C 21.04° C
9 0° C 19.02° C 16.15° C 21.04° C
10 0° C 18.54° C 15.91° C 20.84° C
11 0° C 18.41° C 15.82° C 20.38° C
12 0° C 18.43° C 15.78° C 20.17° C
13 0° C 18.29° C 15.99° C 20.05° C
14 0° C 18.14° C 16.31° C 20.59° C
15 0° C 17.97° C 16.35° C 21.14° C
16 0° C 17.69° C 16.45° C 21.33° C
17 0° C 17.35° C 16.38° C 21.21° C
18 0° C 17.2° C 16.09° C 20.41° C
19 0° C 17.11° C 15.87° C 19.76° C
20 0° C 17.47° C 15.53° C 19.32° C
21 0° C 17.05° C 15.38° C 19.14° C
22 0° C 16.69° C 15.32° C 19.23° C
23 0° C 16.36° C 15.35° C 19.14° C
24 0° C 16.15° C 15.62° C 18.9° C
25 0° C 16.32° C 15.62° C 18.69° C
26 0° C 16.59° C 15.58° C 18.67° C
27 0° C 16.79° C 15.68° C 18.42° C
28 0° C 17.06° C 15.61° C 18.2° C
29 0° C 17.28° C 15.32° C 18.01° C
30 0° C 17.5° C 15.06° C 17.74° C
31 0° C 16.84° C 15.05° C 16.56° C

Water temperature in October for locations near Cape Henlopen

Lewes

United States, North America

3.12 miles away

Rehoboth Beach

United States, North America

5.77 miles away

Broadkill Beach

United States, North America

6.54 miles away

Dewey beach

United States, North America

7.70 miles away

Rehoboth Bay

United States, North America

9.82 miles away

Long Neck

United States, North America

13.01 miles away

Data source and citation

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

  • "Cape Henlopen Sea Temperature in October". SeaTemperatures.net. Accessed on May 4, 2024. http://seatemperatures.net/north-america/united-states/cape-henlopen-october-temperature/.

  • "Cape Henlopen Sea Temperature in October". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/cape-henlopen-october-temperature/. Accessed 4 May, 2024

  • Cape Henlopen Sea Temperature in October. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/cape-henlopen-october-temperature/.