Boston, MA - Station ID: 8443970

Established:May 03, 1921
Time Meridian:0° E
Present Installation:Nov 16, 1988
Date Removed:N/A
Water Level Max (ref MHHW):4.89 ft. Jan 04, 2018
Water Level Min (ref MLLW):-3.72 ft. Mar 24, 1940
Mean Range:9.49 ft.
Diurnal Range:10.27 ft.
Latitude42° 21.3' N
Longitude71° 3.2' W
NOAA Chart#:13272
Met Site Elevation:11.1 ft. above MSL
Today's Tides (LST/LDT)
graphical depiction of low tide
4:50 PM
4:27 AMlow 0.9 ft.
10:42 AMhigh 9.8 ft.
4:50 PMlow 0.7 ft.
11:02 PMhigh 9.5 ft.

Sensor Information

SensorSensor IDDCP#Sensor HeightStatus
Air TemperatureD1117.3 ft. above site Elevation Enabled
Water TemperatureE112.7 ft. below MLLW Enabled
Barometric PressureF1122.0 ft. above MSL Enabled
Tsunami WLU11N/A Enabled
Microwave WLY11N/A Enabled
For questions about disabled sensors, please contact CO-OPS User Services.


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How to reach: To reach the water level station from either direction of U.S. Interstate 93, take exit 23 and follow the signs to the Financial District. Proceed south on Surface Road until it becomes Purchase Road at the intersection with Summer Street. Continue south on Purchase Road for about three blocks. At the intersection with Congress Street, turn SSE (left) and then NE (left) onto Atlantic Avenue. Proceed on Atlantic Avenue for one block to the intersection with Seaport Blvd, proceed straight and after the James Hook & Company building turn SE (right) to Northern Avenue and the U.S. Coast Guard Building. The water level station is SE of the U.S. Coast Guard Building at the NW end of the Northern Avenue bridge. The bench marks are in the vicinity of the U.S. Coast Guard Building, Marriott's Custom House, and the U.S. Post Office.

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