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 Mar 24 2017, 9:55 am GMT

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Tom Wilson,

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 03/24 05:54 Highest, last 24 hr Lowest, last 24 hr
Water level 1.6 feet ( 0.5 meters) MSL
2.7 feet NGVD29
1.6 feet ( 0.5 meters) MSL
2.7 feet NGVD29
at 03/24 05:54
-1.7 feet (-0.5 meters) MSL
-0.5 feet NGVD29
at 03/24 00:12
Tide Tide is flooding.
Rate of change: 0.3 feet/hr
( 0.08 meters/hr).
Water temperature 39 deg F ( 4deg C) 43 deg F ( 6deg C)
at 03/23 12:06
33deg F ( 1 deg C)
at 03/23 11:48
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Mar 24 2017, 9:55 am GMT   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 8 mph 14 mph
at 12:35am
Wind direction Southwest : 225 deg true    
Air temperature 37.2 deg F (2.9 deg C) 38.1 deg F (3.33 deg C)
at 6:18am
35.9 deg F (1.67 deg C)
at 8:30am
Barometric pressure 30 in Hg (1032 mbar) 30 in Hg (0 mbar)
at 1:38am
30 in Hg (0 mbar)
at 9:13am
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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