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

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Newburyport (Merrimack River), MA.
Next low tide : in 4m at 6:08 pm (0.0 ft)
Next high tide (tomorrow) : 12:10 am (9.6 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:46 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Mar 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:558.19:307.02:571.33:410.46:195:32Waxing Gibbous1Wed
2Thu9:468.510:187.43:480.94:280.16:185:33Waxing Gibbous2Thu
3Fri10:358.811:038.04:370.55:12-0.26:165:34Full Moon3Fri
4Sat11:219.011:478.55:240.05:55-0.56:145:35Full Moon4Sat
5Sun12:089.26:12-0.46:38-0.66:135:37Full Moon5Sun
6Mon12:329.012:559.16:59-0.87:21-0.76:115:38Waning Gibbous6Mon
7Tue1:189.41:449.07:48-1.08:06-0.66:095:39Waning Gibbous7Tue
8Wed2:069.62:368.68:40-1.08:54-0.36:085:40Waning Gibbous8Wed
9Thu2:579.63:298.29:34-0.89:470.06:065:42Third Quarter9Thu
10Fri3:519.44:267.810:33-0.510:450.46:045:43Third Quarter10Fri
11Sat4:489.15:277.411:35-0.211:480.76:025:44Third Quarter11Sat
12Sun5:508.86:327.112:400.06:015:45Third Quarter12Sun
13Mon6:568.57:387.012:530.81:440.15:595:46Waning Crescent13Mon
14Tue8:018.48:427.11:570.82:440.25:575:47Waning Crescent14Tue
15Wed9:038.39:397.32:580.73:390.15:555:49Waning Crescent15Wed
16Thu9:578.310:277.63:530.54:290.15:545:50New Moon16Thu
17Fri10:458.311:097.84:440.45:130.15:525:51New Moon17Fri
18Sat11:278.211:478.05:290.35:540.25:505:52New Moon18Sat
19Sun12:068.16:120.26:320.35:485:53New Moon19Sun
20Mon12:228.112:448.06:520.17:080.55:475:55Waxing Crescent20Mon
21Tue12:588.21:227.87:320.27:450.75:455:56Waxing Crescent21Tue
22Wed1:368.32:027.68:120.28:230.95:435:57Waxing Crescent22Wed
23Thu2:158.32:447.48:530.49:031.25:415:58Waxing Crescent23Thu
24Fri2:588.23:297.29:390.69:471.45:405:59Waxing Crescent24Fri
25Sat3:448.04:186.910:290.810:371.65:386:00First Quarter25Sat
26Sun4:357.95:116.711:241.011:331.85:366:02First Quarter26Sun
27Mon5:297.86:086.612:231.15:346:03First Quarter27Mon
28Tue6:277.87:066.712:321.81:201.05:336:04First Quarter28Tue
29Wed7:267.98:037.01:311.62:150.75:316:05Waxing Gibbous29Wed
30Thu8:238.28:577.52:271.23:060.55:296:06Waxing Gibbous30Thu
31Fri9:178.59:468.13:200.73:530.25:276:07Waxing Gibbous31Fri
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 9:09 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 0% 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 New Moon (0% 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