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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Newburyport (Merrimack River), MA.
Next low tide : 10:13 pm (0.5 ft)
Next high tide : in 3h 00m at 3:46 pm (8.5 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - May 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:288.16:037.312:130.85:367:44First Quarter1Tue
2Wed6:227.86:567.312:321.41:061.05:347:45First Quarter2Wed
3Thu7:177.67:507.41:291.41:591.05:337:47First Quarter3Thu
4Fri8:137.58:427.62:251.32:501.15:327:48Waxing Gibbous4Fri
5Sat9:077.59:317.93:181.13:381.15:317:49Waxing Gibbous5Sat
6Sun9:577.510:168.24:070.84:231.05:297:50Waxing Gibbous6Sun
7Mon10:457.611:008.54:550.55:071.05:287:51Waxing Gibbous7Mon
8Tue11:307.711:428.95:400.25:490.95:277:52Full Moon8Tue
9Wed12:137.86:230.06:300.85:267:53Full Moon9Wed
10Thu12:249.212:578.07:07-0.27:130.75:257:54Full Moon10Thu
11Fri1:089.41:428.17:51-0.47:560.75:237:55Waning Gibbous11Fri
12Sat1:549.62:298.18:37-0.58:430.65:227:57Waning Gibbous12Sat
13Sun2:439.63:198.29:26-0.59:350.55:217:58Waning Gibbous13Sun
14Mon3:359.54:138.310:17-0.410:310.55:207:59Waning Gibbous14Mon
15Tue4:309.35:098.311:12-0.311:320.55:198:00Third Quarter15Tue
16Wed5:299.16:078.512:09-0.25:188:01Third Quarter16Wed
17Thu6:298.87:068.712:350.41:07-0.15:178:02Third Quarter17Thu
18Fri7:318.58:058.91:390.22:050.05:168:03Waning Crescent18Fri
19Sat8:348.39:039.12:410.03:010.15:158:04Waning Crescent19Sat
20Sun9:348.29:579.33:39-0.23:550.15:158:05Waning Crescent20Sun
21Mon10:318.110:499.44:35-0.44:470.25:148:06Waning Crescent21Mon
22Tue11:238.011:379.45:27-0.55:370.35:138:07New Moon22Tue
23Wed12:117.96:16-0.56:240.55:128:08New Moon23Wed
24Thu12:229.412:567.87:03-0.47:110.65:118:09New Moon24Thu
25Fri1:069.21:397.77:48-0.37:550.85:118:10Waxing Crescent25Fri
26Sat1:499.02:227.78:32-0.18:400.95:108:10Waxing Crescent26Sat
27Sun2:338.83:067.69:160.19:251.15:098:11Waxing Crescent27Sun
28Mon3:188.63:517.510:010.310:131.25:098:12Waxing Crescent28Mon
29Tue4:048.44:387.510:470.611:031.35:088:13First Quarter29Tue
30Wed4:538.15:277.611:350.811:561.45:088:14First Quarter30Wed
31Thu5:447.86:177.612:240.95:078:15First Quarter31Thu
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 6:59 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 transitional phase. Tonight's moon is 75% 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 Waning Gibbous (75% 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