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

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Newburyport (Merrimack River), MA.
Next low tide : in 5h 50m at 9:02 pm (-0.1 ft)
Next high tide (tomorrow) : 3:00 am (9.4 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Sep 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:198.912:438.76:520.07:10-0.16:097:17New Moon1Tue
2Wed1:049.01:259.17:32-0.27:55-0.46:107:15Waxing Crescent2Wed
3Thu1:499.02:109.48:14-0.28:42-0.66:117:14Waxing Crescent3Thu
4Fri2:378.92:579.68:58-0.19:32-0.66:127:12Waxing Crescent4Fri
5Sat3:278.63:489.79:460.010:26-0.56:137:10Waxing Crescent5Sat
6Sun4:218.34:429.510:380.311:25-0.36:147:08First Quarter6Sun
7Mon5:188.05:419.311:370.56:157:07First Quarter7Mon
8Tue6:187.76:439.112:27-0.112:410.76:167:05First Quarter8Tue
9Wed7:227.57:478.91:310.11:460.76:177:03Waxing Gibbous9Wed
10Thu8:287.58:528.82:340.12:500.76:187:01Waxing Gibbous10Thu
11Fri9:317.79:548.83:340.03:500.56:196:59Waxing Gibbous11Fri
12Sat10:287.910:498.74:290.04:460.36:206:58Waxing Gibbous12Sat
13Sun11:188.211:388.75:19-0.15:380.16:216:56Full Moon13Sun
14Mon12:028.46:050.06:250.06:236:54Full Moon14Mon
15Tue12:238.612:428.56:480.17:100.06:246:52Full Moon15Tue
16Wed1:048.41:208.67:280.37:520.06:256:50Waning Gibbous16Wed
17Thu1:448.21:588.68:070.58:330.16:266:49Waning Gibbous17Thu
18Fri2:238.02:388.58:460.79:150.36:276:47Waning Gibbous18Fri
19Sat3:057.83:198.49:271.09:590.56:286:45Waning Gibbous19Sat
20Sun3:497.54:048.310:101.210:460.76:296:43Waning Gibbous20Sun
21Mon4:357.24:528.110:571.511:391.06:306:42Third Quarter21Mon
22Tue5:267.05:447.911:501.76:316:40Third Quarter22Tue
23Wed6:206.86:407.812:351.112:471.86:326:38Third Quarter23Wed
24Thu7:166.87:377.81:321.21:451.76:336:36Third Quarter24Thu
25Fri8:136.98:347.92:271.12:411.56:346:34Waning Crescent25Fri
26Sat9:087.39:288.13:190.93:341.26:366:33Waning Crescent26Sat
27Sun9:587.710:198.44:070.64:240.76:376:31Waning Crescent27Sun
28Mon10:458.311:078.64:520.45:130.26:386:29New Moon28Mon
29Tue11:298.811:548.85:360.25:59-0.26:396:27New Moon29Tue
30Wed12:139.46:180.06:46-0.76:406:25New Moon30Wed
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 12:01 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 spring phase. Tonight's moon is 14% 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 Waxing Crescent (14% 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