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 Nov 22 2017, 12:25 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 11/22 07:36 Highest, last 24 hr Lowest, last 24 hr
Water level 1.4 feet ( 0.4 meters) MSL
2.6 feet NGVD29
2.2 feet ( 0.7 meters) MSL
3.3 feet NGVD29
at 11/21 10:06
-1.2 feet (-0.4 meters) MSL
-0.1 feet NGVD29
at 11/21 16:18
Tide Tide is flooding.
Rate of change: 0.8 feet/hr
( 0.23 meters/hr).
Water temperature 47 deg F ( 9deg C) 48 deg F ( 9deg C)
at 11/21 14:48
46deg F ( 8 deg C)
at 11/21 07:42
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Nov 22 2017, 12:25 pm GMT   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 2 mph 18 mph
at 12:06am
Wind direction Southwest : 211 deg true    
Air temperature 54.1 deg F (12.3 deg C) 55.1 deg F (12.78 deg C)
at 8:10am
51.2 deg F (10.56 deg C)
at 6:51am
Barometric pressure 29 in Hg (1012 mbar) 30 in Hg (0 mbar)
at 12:12am
29 in Hg (0 mbar)
at 10:42am
Barometer - 1 hour trend Falling Slowly    


  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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