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 Jul 24 2017, 12:25 am BST

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 07/23 20:24 Highest, last 24 hr Lowest, last 24 hr
Water level 3.6 feet ( 1.1 meters) MSL
4.8 feet NGVD29
3.6 feet ( 1.1 meters) MSL
4.8 feet NGVD29
at 07/22 20:36
-0.8 feet (-0.2 meters) MSL
0.4 feet NGVD29
at 07/23 15:30
Tide Tide is flooding.
Rate of change: 0.7 feet/hr
( 0.21 meters/hr).
Water temperature 76 deg F (24deg C) 77 deg F (25deg C)
at 07/22 22:48
74deg F (24 deg C)
at 07/23 09:36
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Jul 24 2017, 12:25 am BST   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 7 mph 12 mph
at 12:00am
Wind direction East : 93 deg true    
Air temperature 73.7 deg F (23.2 deg C) 73.8 deg F (22.78 deg C)
at 12:11am
73.6 deg F (22.78 deg C)
at 12:00am
Barometric pressure 29 in Hg (1010 mbar) 29 in Hg (0 mbar)
at 12:24am
29 in Hg (0 mbar)
at 12:00am
Barometer - 1 hour trend Steady    


  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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