Sea Temperature

New Castle Sea Temperature

(Today) Sep 2018

21.1°C / 70°F

Current weather

22°C / 72°F
(light rain)

Partly cloudy
Wind

5 mph

Humidity

100%


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.

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.

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

7 day tide forecast for New Castle

WedThuFriSatSunMonTue
  • High 12:59am
    (6.21m)
  • Low 08:01am
    (0.30m)
  • High 01:19pm
    (6.04m)
  • Low 08:24pm
    (0.33m)
  • High 01:31am
    (6.14m)
  • Low 08:39am
    (0.42m)
  • High 01:51pm
    (6.22m)
  • Low 09:09pm
    (0.48m)
  • High 02:07am
    (6.06m)
  • Low 09:18am
    (0.54m)
  • High 02:27pm
    (6.38m)
  • Low 09:55pm
    (0.63m)
  • High 02:47am
    (5.94m)
  • Low 09:59am
    (0.66m)
  • High 03:10pm
    (6.48m)
  • Low 10:45pm
    (0.78m)
  • High 03:33am
    (5.77m)
  • Low 10:46am
    (0.77m)
  • High 04:01pm
    (6.47m)
  • Low 11:40pm
    (0.90m)
  • High 04:27am
    (5.56m)
  • Low 11:41am
    (0.86m)
  • High 04:59pm
    (6.39m)
  • Low 12:39am
    (0.94m)
  • High 05:32am
    (5.36m)
  • Low 12:45pm
    (0.89m)
  • High 06:08pm
    (6.28m)

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

Average September sea temperatures

  • Max: 24.1°C / 75.3°F
  • Avg: 22.2°C / 72°F
  • Min: 20.4°C / 68.6°F
New Castle average sea temperature chart

These average ocean temperatures for New Castle are calculated from several years of archived data.

Map showing location of New Castle (39.662060, -75.566310)

Locations nearby

Variations

Whilst sea temperatures for New Castle are as accurate as current data allows, there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for New Castle

New Castle average sea temperature chart