Tides Today & Tomorrow in Newburyport (Merrimack River), MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Newburyport (Merrimack River), MA.
Next low tide : in 2h 09m at 9:41 am (0.4 ft)
Next high tide : 3:33 pm (7.7 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Mar 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:399.21:029.77:04-1.17:31-1.26:185:32Waning Gibbous1Fri
2Sat1:289.51:539.47:56-1.28:19-1.06:175:33Waning Gibbous2Sat
3Sun2:189.62:459.08:49-1.19:09-0.76:155:35Waning Gibbous3Sun
4Mon3:109.53:398.59:44-0.910:02-0.36:145:36Third Quarter4Mon
5Tue4:039.34:368.010:42-0.510:580.26:125:37Third Quarter5Tue
6Wed4:598.95:347.511:42-0.211:580.66:105:38Third Quarter6Wed
7Thu5:588.66:367.112:440.16:095:40Third Quarter7Thu
8Fri6:598.37:396.912:580.81:440.36:075:41Waning Crescent8Fri
9Sat8:008.18:396.91:580.92:420.36:055:42Waning Crescent9Sat
10Sun8:588.09:337.02:550.93:350.36:035:43Waning Crescent10Sun
11Mon9:498.110:197.23:470.84:240.36:025:44Waning Crescent11Mon
12Tue10:348.111:007.44:350.75:070.36:005:46New Moon12Tue
13Wed11:148.111:377.65:190.65:470.35:585:47New Moon13Wed
14Thu11:538.16:000.56:250.35:565:48New Moon14Thu
15Fri12:137.812:308.16:400.47:010.45:555:49New Moon15Fri
16Sat12:498.01:098.17:190.37:370.55:535:50Waxing Crescent16Sat
17Sun1:268.11:487.97:580.38:140.75:515:51Waxing Crescent17Sun
18Mon2:058.22:317.88:390.48:520.95:495:53Waxing Crescent18Mon
19Tue2:478.33:167.69:230.49:331.15:485:54Waxing Crescent19Tue
20Wed3:328.34:047.310:110.510:201.35:465:55First Quarter20Wed
21Thu4:228.24:577.111:060.611:151.45:445:56First Quarter21Thu
22Fri5:158.25:547.012:050.65:425:57First Quarter22Fri
23Sat6:148.36:537.112:151.41:050.55:415:58First Quarter23Sat
24Sun7:148.47:547.31:171.22:040.35:396:00Waxing Gibbous24Sun
25Mon8:158.78:527.82:170.83:000.05:376:01Waxing Gibbous25Mon
26Tue9:149.09:478.33:150.43:52-0.45:356:02Waxing Gibbous26Tue
27Wed10:099.310:388.94:10-0.24:43-0.75:346:03Full Moon27Wed
28Thu11:029.511:279.45:03-0.75:31-0.95:326:04Full Moon28Thu
29Fri11:539.55:55-1.16:19-1.05:306:05Full Moon29Fri
30Sat12:159.812:439.46:46-1.47:06-0.95:286:07Waning Gibbous30Sat
31Sun1:0310.01:339.17:37-1.47:54-0.65:276:08Waning Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440466)

Common Questions About Newburyport (Merrimack River), MA Tides

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What time does the tide turn (slack tide) in Newburyport (Merrimack River), MA today?

Slack tide in Newburyport (Merrimack River), MA is approximately 12:37 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Newburyport (Merrimack River), MA?

Newburyport (Merrimack River), MA is currently in a spring phase. Tonight's moon is 81% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Newburyport (Merrimack River), MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Newburyport (Merrimack River), MA?

Tide predictions for Newburyport (Merrimack River), MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Newburyport (Merrimack River), MA?

Tide data for Newburyport (Merrimack River), MA is sourced from NOAA Station #8440466. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8440466.

What is the moon phase in Newburyport (Merrimack River), MA tonight?

Tonight the moon over Newburyport (Merrimack River), MA is Waning Gibbous (81% illuminated). This places Newburyport (Merrimack River), MA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA