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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Newburyport (Merrimack River), MA.
Next low tide : in 44m at 3:32 pm (0.8 ft)
Next high tide : 9:36 pm (9.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Mar 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:499.05:51-0.66:17-0.76:195:32Full Moon1Fri
2Sat12:138.812:358.86:39-0.77:01-0.66:175:33Waning Gibbous2Sat
3Sun12:568.91:198.67:25-0.67:43-0.36:165:34Waning Gibbous3Sun
4Mon1:398.92:038.28:11-0.58:260.06:145:35Waning Gibbous4Mon
5Tue2:228.72:487.88:57-0.29:100.46:125:37Waning Gibbous5Tue
6Wed3:068.53:357.59:450.19:570.86:115:38Third Quarter6Wed
7Thu3:538.24:247.110:360.510:481.16:095:39Third Quarter7Thu
8Fri4:448.05:166.811:310.811:431.46:075:40Third Quarter8Fri
9Sat5:387.86:126.612:281.06:065:42Third Quarter9Sat
10Sun6:347.67:106.512:411.51:251.06:045:43Waning Crescent10Sun
11Mon7:327.68:076.71:371.42:200.96:025:44Waning Crescent11Mon
12Tue8:277.78:596.92:321.33:100.86:015:45Waning Crescent12Tue
13Wed9:187.99:467.33:221.13:560.65:595:46Waning Crescent13Wed
14Thu10:048.110:297.74:100.84:390.45:575:48New Moon14Thu
15Fri10:488.311:098.14:550.45:190.25:555:49New Moon15Fri
16Sat11:308.411:498.65:380.15:580.15:545:50New Moon16Sat
17Sun12:128.56:20-0.26:370.15:525:51New Moon17Sun
18Mon12:309.012:568.57:03-0.57:170.05:505:52Waxing Crescent18Mon
19Tue1:139.21:428.47:48-0.68:000.15:485:53Waxing Crescent19Tue
20Wed1:599.42:318.28:37-0.68:470.25:475:55Waxing Crescent20Wed
21Thu2:509.43:248.09:30-0.59:400.45:455:56First Quarter21Thu
22Fri3:449.34:207.810:28-0.310:390.65:435:57First Quarter22Fri
23Sat4:429.15:217.611:30-0.111:440.75:415:58First Quarter23Sat
24Sun5:458.96:257.512:330.05:395:59First Quarter24Sun
25Mon6:508.77:307.612:510.61:360.05:386:00Waxing Gibbous25Mon
26Tue7:558.68:327.91:550.42:34-0.15:366:02Waxing Gibbous26Tue
27Wed8:578.69:298.32:560.13:29-0.25:346:03Waxing Gibbous27Wed
28Thu9:538.710:198.63:52-0.14:20-0.35:326:04Full Moon28Thu
29Fri10:438.611:048.84:44-0.45:07-0.25:316:05Full Moon29Fri
30Sat11:298.511:469.05:33-0.55:51-0.15:296:06Full Moon30Sat
31Sun12:128.36:18-0.56:330.15:276:07Full Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440466)

Common Questions About Newburyport (Merrimack River), MA Tides

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

Slack tide in Newburyport (Merrimack River), MA is approximately 6:34 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 11% 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 Crescent (11% 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