New Castle Sea Temperature in August

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

Average water temperature in New Castle for August

The average, high, and low temperatures below should help you if you can swim in the water in New Castle in August.

25.29° C

(77.53° F)

  • highest: 28.73° C (83.71° F)
  • lowest: 21.74° C (71.13° F)

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

Water temperature range by day in August in New Castle

The chart below shows the range of low and high temperatures by day for the month of August in New Castle.

Water temperatures for August in New Castle in recent years

Day 2024 2023 2022 2021
1 0° C 25.77° C 26.59° C 23.02° C
2 0° C 25.91° C 26.66° C 23.03° C
3 0° C 24.98° C 26.57° C 22.92° C
4 0° C 24.63° C 26.46° C 22.86° C
5 0° C 24.42° C 26.82° C 23.16° C
6 0° C 24.66° C 27.08° C 23.41° C
7 0° C 24.89° C 27.19° C 22.83° C
8 0° C 25.13° C 27.31° C 22.73° C
9 0° C 25.22° C 27.66° C 23.86° C
10 0° C 25.35° C 27.72° C 23.99° C
11 0° C 24.82° C 27.73° C 23.98° C
12 0° C 25.79° C 27.52° C 24.57° C
13 0° C 26.18° C 26.97° C 24.8° C
14 0° C 26.7° C 26.65° C 24.56° C
15 0° C 27.34° C 26.07° C 24.35° C
16 0° C 27.4° C 25.89° C 24.3° C
17 0° C 27.46° C 25.44° C 24.19° C
18 0° C 27.27° C 25.17° C 24.12° C
19 0° C 26.67° C 25.23° C 24.27° C
20 0° C 26.14° C 25.48° C 24.58° C
21 0° C 25.78° C 25.57° C 24.46° C
22 0° C 25.7° C 26.07° C 24.17° C
23 0° C 25.58° C 26.38° C 24.22° C
24 0° C 25.2° C 26.62° C 24.44° C
25 0° C 24.51° C 26.68° C 24.61° C
26 0° C 25.52° C 26.67° C 25.66° C
27 0° C 25.81° C 26.61° C 26.9° C
28 0° C 26.14° C 26.9° C 27.01° C
29 0° C 25.59° C 27.23° C 26.46° C
30 0° C 25.19° C 27.27° C 26.07° C
31 0° C 25.18° C 27.09° C 26° C

Water temperature in August for locations near New Castle

Wilmington

United States, North America

5.79 miles away

Delaware City

United States, North America

5.93 miles away

Carneys Point Township

United States, North America

6.16 miles away

Penns Grove

United States, North America

7.03 miles away

Edgemoor

United States, North America

7.06 miles away

North East

United States, North America

20.38 miles away

Data source and citation

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

  • "New Castle Sea Temperature in August". SeaTemperatures.net. Accessed on May 4, 2024. http://seatemperatures.net/north-america/united-states/new-castle-august-temperature/.

  • "New Castle Sea Temperature in August". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/new-castle-august-temperature/. Accessed 4 May, 2024

  • New Castle Sea Temperature in August. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/new-castle-august-temperature/.