Merrick station location
Station location

Sea Conditions at

Long Island New York USA
Latitude 40 degrees 38.6 minutes North
Longitude 73 degrees 32.4 minutes West

A service of LIShore.

Last Updated on Dec 16 2017, 2:55 pm GMT

Station status: Page update and weather are reporting in Greenwich Mean Time (Eastern Daylight time + 4 hours, 1600 GMT = noon EST). We will switch to zone local (EST and EDT) as soon as possible.
Bay Tide
See notes below regarding level references.
Time 12/16 09:48 Highest, last 24 hr Lowest, last 24 hr
Water level 0.4 feet ( 0.1 meters) MSL
1.5 feet NGVD29
2.1 feet ( 0.6 meters) MSL
3.2 feet NGVD29
at 12/15 18:30
-1.4 feet (-0.4 meters) MSL
-0.3 feet NGVD29
at 12/16 01:00
Tide Tide is ebbing.
Rate of change: -0.7 feet/hr
(-0.20 meters/hr).
Water temperature 38 deg F ( 3deg C) 39 deg F ( 4deg C)
at 12/15 14:48
37deg F ( 3 deg C)
at 12/16 04:54
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Dec 16 2017, 2:55 pm GMT   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 10 mph 23 mph
at 2:51pm
Wind direction Southeast : 139 deg true    
Air temperature 33.7 deg F (0.9 deg C) 33.7 deg F (0.56 deg C)
at 2:54pm
24.2 deg F (-4.44 deg C)
at 5:57am
Barometric pressure 30 in Hg (1018 mbar) 30 in Hg (0 mbar)
at 2:51pm
29 in Hg (0 mbar)
at 1:14am
Barometer - 1 hour trend Rising Rapidly    


  1. Real-time data are unchecked and preliminary. Please read this disclaimer.
  2. MSL = measurement referenced to Mean Sea Level. Seasonal and weather system biases highly affect estuarine water levels, therefore the MSL datum for this station is preliminary until data are collected over a sufficient length of time to define it accurately.
  3. NGVD29 = measurement referenced to National Geodetic Vertical Datum of 1929.
  4. Daily precipitation resets at solar midnight (midnight EST, 11:00pm EDT). Heated gauge converts frozen preciptation to liquid equivalent.

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