Belmar Water Temperature

(Today) 2025

18.8°C / 65.8°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.

*Live data from Sandy Hook, NJ: 16.0°C / 60.8°F

Current weather

13°C / 55°F
(clear sky)
Partly cloudy
Wind
17 mph
Humidity
52%

The measurements for the water temperature in Belmar, New Jersey 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.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

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

Belmar average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Belmar
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.9 2.6 2.5 4 7.2 14 20.1 21.6 19.2 13.5 10.1 5.3
Max °C 7.4 5.5 5.9 9.8 14.4 21.5 24.3 25.5 23 20.3 14.1 10.9
Min °F 39 37.8 37.9 41.5 47.8 60.2 69.9 72.4 68.1 59 51.8 43.8
Max °F 43.5 40.7 41.3 47.3 55 67.7 74.1 76.3 71.9 65.8 55.8 49.4

The warmest water temperature is in August with an average around 74.3°F / 23.5°C. The coldest month is February with an average water temperature of 39.2°F / 4.0°C.

7 day tide forecast for Belmar

ThuFriSatSunMonTueWed
  • High 3:59am
    (1.34m)
  • Low 10:06am
    (0.27m)
  • High 4:19pm
    (1.43m)
  • Low 10:45pm
    (0.13m)
  • High 4:56am
    (1.41m)
  • Low 10:58am
    (0.21m)
  • High 5:14pm
    (1.44m)
  • Low 11:27pm
    (0.1m)
  • High 5:45am
    (1.48m)
  • Low 11:45am
    (0.16m)
  • High 6:01pm
    (1.45m)
  • Low 12:07am
    (0.09m)
  • High 6:27am
    (1.55m)
  • Low 12:29pm
    (0.12m)
  • High 6:42pm
    (1.45m)
  • Low 12:44am
    (0.09m)
  • High 7:05am
    (1.6m)
  • Low 1:11pm
    (0.1m)
  • High 7:20pm
    (1.44m)
  • Low 1:21am
    (0.1m)
  • High 7:39am
    (1.62m)
  • Low 1:52pm
    (0.09m)
  • High 7:56pm
    (1.41m)
  • Low 1:57am
    (0.12m)
  • High 8:13am
    (1.62m)
  • Low 2:32pm
    (0.09m)
  • High 8:31pm
    (1.36m)
7 day tide times for Belmar

*These tide times are estimates based on the nearest accurate location (Shark River Island, fixed RR. bridge, New Jersey) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.