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 Sep 20 2017, 12:40 pm 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 09/20 08:30 Highest, last 24 hr Lowest, last 24 hr
Water level 3.8 feet ( 1.1 meters) MSL
4.9 feet NGVD29
4.2 feet ( 1.3 meters) MSL
5.3 feet NGVD29
at 09/19 21:06
0.1 feet ( 0.0 meters) MSL
1.2 feet NGVD29
at 09/19 15:24
Tide Tide is flooding.
Rate of change: 0.5 feet/hr
( 0.16 meters/hr).
Water temperature 71 deg F (21deg C) 71 deg F (22deg C)
at 09/19 12:18
70deg F (21 deg C)
at 09/20 07:12
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Sep 20 2017, 12:40 pm BST   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 0 mph 31 mph
at 4:48am
Wind direction West : 288 deg true    
Air temperature 72.4 deg F (22.4 deg C) 72.7 deg F (22.22 deg C)
at 9:52am
70.2 deg F (21.11 deg C)
at 12:00am
Barometric pressure 29 in Hg (1009 mbar) 29 in Hg (0 mbar)
at 12:52am
29 in Hg (0 mbar)
at 7:36am
Barometer - 1 hour trend Rising 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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latest.php was last modified: January 24 2017 13:44:11