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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Newburyport (Merrimack River), MA.
Next low tide (tomorrow) : 3:08 am (0.0 ft)
Next high tide : in 5h 23m at 8:17 pm (9.1 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Oct 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:077.76:298.412:140.212:330.96:406:25First Quarter1Tue
2Wed7:057.47:288.11:130.41:331.06:416:23First Quarter2Wed
3Thu8:047.48:277.92:100.62:311.06:426:22Waxing Gibbous3Thu
4Fri9:007.59:227.93:040.73:250.96:446:20Waxing Gibbous4Fri
5Sat9:517.610:137.93:550.74:160.86:456:18Waxing Gibbous5Sat
6Sun10:367.910:588.04:410.65:030.66:466:16Waxing Gibbous6Sun
7Mon11:178.111:398.05:240.65:460.46:476:15Full Moon7Mon
8Tue11:558.36:040.66:280.36:486:13Full Moon8Tue
9Wed12:188.012:328.56:430.77:080.26:496:11Full Moon9Wed
10Thu12:568.01:108.67:210.77:480.16:506:10Full Moon10Thu
11Fri1:358.01:488.87:590.88:280.16:526:08Waning Gibbous11Fri
12Sat2:168.02:308.88:370.99:090.26:536:06Waning Gibbous12Sat
13Sun3:007.93:148.89:181.09:540.26:546:05Waning Gibbous13Sun
14Mon3:467.84:028.810:031.110:440.36:556:03Waning Gibbous14Mon
15Tue4:377.74:558.710:551.111:380.46:566:01Third Quarter15Tue
16Wed5:317.75:518.611:541.16:576:00Third Quarter16Wed
17Thu6:297.86:518.612:360.412:571.06:595:58Third Quarter17Thu
18Fri7:288.17:538.61:350.31:590.67:005:57Waning Crescent18Fri
19Sat8:278.48:548.82:330.13:000.27:015:55Waning Crescent19Sat
20Sun9:258.99:538.93:28-0.13:57-0.37:025:53Waning Crescent20Sun
21Mon10:209.410:499.04:21-0.34:53-0.87:035:52New Moon21Mon
22Tue11:119.811:429.15:13-0.55:46-1.17:055:50New Moon22Tue
23Wed12:0110.16:03-0.66:37-1.37:065:49New Moon23Wed
24Thu12:329.112:5010.26:52-0.67:27-1.47:075:47New Moon24Thu
25Fri1:229.01:3810.17:41-0.48:17-1.27:085:46Waxing Crescent25Fri
26Sat2:108.72:269.88:30-0.29:06-0.97:105:44Waxing Crescent26Sat
27Sun2:008.42:169.58:190.18:56-0.56:114:43Waxing Crescent27Sun
28Mon2:508.13:079.09:110.59:48-0.16:124:42First Quarter28Mon
29Tue3:427.94:008.610:050.810:420.26:134:40First Quarter29Tue
30Wed4:367.64:558.211:021.011:380.56:154:39First Quarter30Wed
31Thu5:317.55:517.912:011.16:164:37First 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 11:42 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 22% 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 Crescent (22% 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