New Castle Water Temperature

(Today) 2024

14.1°C / 57.3°F

The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.

Current weather

8°C / 46°F
(overcast clouds)
Partly cloudy
Wind
7 mph
Humidity
77%

The measurements for the water temperature in New Castle, Delaware are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly New Castle water temperature derived from many years of historical sea surface temperature data.

New Castle average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in New Castle
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 3.6 3.6 3.9 5.5 8.3 15.6 21.6 22.6 20.4 14.5 10.9 6.5
Max °C 8 6.3 7.4 11.8 16 22.8 25.5 26.6 24.1 21.6 15.2 11.8
Min °F 40.2 39.5 40.4 44.4 50 63 72.4 74.3 70.2 60.9 53.3 45.8
Max °F 44.6 42.2 43.9 50.7 57.7 70.2 76.3 78.3 73.9 68 57.6 51.1

The warmest water temperature is in August with an average around 76.3°F / 24.6°C. The coldest month is February with an average water temperature of 40.8°F / 4.9°C.

7 day tide forecast for New Castle

FriSatSunMonTueWedThu
  • Low 3:50am
    (0.22m)
  • High 9:40am
    (1.74m)
  • Low 4:22pm
    (0.18m)
  • High 10:13pm
    (1.7m)
  • Low 4:42am
    (0.16m)
  • High 10:28am
    (1.74m)
  • Low 5:08pm
    (0.15m)
  • High 10:58pm
    (1.76m)
  • Low 5:31am
    (0.11m)
  • High 11:13am
    (1.73m)
  • Low 5:51pm
    (0.13m)
  • High 11:39pm
    (1.79m)
  • Low 6:18am
    (0.07m)
  • High 11:54am
    (1.69m)
  • Low 6:31pm
    (0.13m)
  • High 12:16am
    (1.81m)
  • Low 7:02am
    (0.04m)
  • High 12:31pm
    (1.65m)
  • Low 7:10pm
    (0.15m)
  • High 12:48am
    (1.83m)
  • Low 7:45am
    (0.05m)
  • High 1:05pm
    (1.6m)
  • Low 7:47pm
    (0.18m)
  • High 1:17am
    (1.85m)
  • Low 8:28am
    (0.06m)
  • High 1:37pm
    (1.56m)
  • Low 8:23pm
    (0.21m)
7 day tide times for New Castle

*These tide times are estimates based on the nearest accurate location (New Castle, Chesapeake and Delaware Canal, Delaware) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.