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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Newburyport (Merrimack River), MA.
Next low tide : 1:49 pm (1.2 ft)
Next high tide : in 3h 22m at 7:25 am (7.1 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Mar 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:097.87:446.81:171.31:590.76:185:32Waning Crescent1Sun
2Mon8:048.08:397.02:111.22:510.56:175:34Waning Crescent2Mon
3Tue8:578.39:307.43:021.03:410.26:155:35Waning Crescent3Tue
4Wed9:488.610:187.83:520.74:29-0.16:135:36Waning Crescent4Wed
5Thu10:369.011:048.34:400.35:14-0.46:125:37New Moon5Thu
6Fri11:239.311:508.85:28-0.25:59-0.76:105:38New Moon6Fri
7Sat12:119.46:15-0.66:43-0.96:085:40New Moon7Sat
8Sun12:369.212:599.57:04-0.97:28-0.96:075:41Waxing Crescent8Sun
9Mon1:239.51:499.37:53-1.18:15-0.86:055:42Waxing Crescent9Mon
10Tue2:139.72:419.18:45-1.19:05-0.66:035:43Waxing Crescent10Tue
11Wed3:059.73:358.79:40-0.99:59-0.36:025:44First Quarter11Wed
12Thu3:599.54:338.310:39-0.710:570.06:005:46First Quarter12Thu
13Fri4:579.25:337.911:41-0.411:590.35:585:47First Quarter13Fri
14Sat5:588.96:367.612:44-0.35:565:48First Quarter14Sat
15Sun7:018.77:417.51:020.41:45-0.25:555:49Waxing Gibbous15Sun
16Mon8:058.68:437.52:030.42:44-0.15:535:50Waxing Gibbous16Mon
17Tue9:048.59:387.73:010.43:39-0.15:515:52Waxing Gibbous17Tue
18Wed9:588.510:277.83:560.34:29-0.15:495:53Full Moon18Wed
19Thu10:458.511:098.04:460.25:14-0.15:485:54Full Moon19Thu
20Fri11:278.411:488.15:310.15:560.05:465:55Full Moon20Fri
21Sat12:078.36:140.16:360.15:445:56Full Moon21Sat
22Sun12:258.212:468.26:550.17:140.35:425:57Waning Gibbous22Sun
23Mon1:038.31:258.17:350.17:520.55:415:59Waning Gibbous23Mon
24Tue1:418.32:067.98:160.28:320.75:396:00Waning Gibbous24Tue
25Wed2:228.32:497.78:590.39:130.95:376:01Waning Gibbous25Wed
26Thu3:058.23:357.59:450.59:581.25:356:02Waning Gibbous26Thu
27Fri3:528.14:247.310:350.710:481.45:336:03Third Quarter27Fri
28Sat4:428.05:167.111:290.811:431.55:326:04Third Quarter28Sat
29Sun5:357.96:117.012:250.85:306:05Third Quarter29Sun
30Mon6:318.07:087.112:401.51:220.75:286:07Third Quarter30Mon
31Tue7:298.18:047.41:371.32:160.55:266:08Waning Crescent31Tue
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 10:37 am — 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 Waxing Gibbous (71% illuminated). This places Newburyport (Merrimack River), MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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