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

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Newburyport (Merrimack River), MA.
Next low tide : in 4h 21m at 11:25 am (0.9 ft)
Next high tide : 5:22 pm (8.4 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Sep 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:358.31:548.38:070.48:260.46:077:19Waning Gibbous1Fri
2Sat2:148.32:348.48:440.59:070.46:087:18Waning Gibbous2Sat
3Sun2:568.23:158.59:230.79:490.56:097:16Waning Gibbous3Sun
4Mon3:408.04:008.510:030.810:360.66:107:14Waning Gibbous4Mon
5Tue4:277.84:488.510:481.011:270.66:117:13Third Quarter5Tue
6Wed5:187.75:408.611:391.16:127:11Third Quarter6Wed
7Thu6:137.56:368.612:240.612:371.16:137:09Third Quarter7Thu
8Fri7:117.57:358.71:230.51:371.06:147:07Waning Crescent8Fri
9Sat8:117.78:358.92:220.32:380.76:157:06Waning Crescent9Sat
10Sun9:108.09:359.23:200.03:360.36:167:04Waning Crescent10Sun
11Mon10:078.510:329.54:14-0.34:33-0.16:187:02Waning Crescent11Mon
12Tue11:019.011:269.75:07-0.65:27-0.66:197:00New Moon12Tue
13Wed11:529.55:57-0.96:20-1.06:206:58New Moon13Wed
14Thu12:189.812:429.86:46-1.07:12-1.26:216:57New Moon14Thu
15Fri1:089.71:3110.07:35-1.08:03-1.36:226:55Waxing Crescent15Fri
16Sat1:599.52:2010.08:23-0.88:54-1.26:236:53Waxing Crescent16Sat
17Sun2:499.23:109.89:12-0.69:46-0.96:246:51Waxing Crescent17Sun
18Mon3:408.84:029.510:03-0.210:40-0.56:256:50First Quarter18Mon
19Tue4:338.34:559.110:570.211:35-0.16:266:48First Quarter19Tue
20Wed5:287.95:508.711:530.66:276:46First Quarter20Wed
21Thu6:247.66:478.312:330.312:510.96:286:44First Quarter21Thu
22Fri7:237.37:468.11:310.51:501.06:296:42Waxing Gibbous22Fri
23Sat8:217.38:448.02:280.62:471.06:316:41Waxing Gibbous23Sat
24Sun8:167.48:388.02:220.72:400.95:325:39Waxing Gibbous24Sun
25Mon9:067.59:268.03:110.63:300.85:335:37Waxing Gibbous25Mon
26Tue9:507.810:108.13:570.64:160.65:345:35Full Moon26Tue
27Wed10:318.010:518.14:390.54:590.55:355:33Full Moon27Wed
28Thu11:098.211:308.25:190.55:400.35:365:32Full Moon28Thu
29Fri11:468.55:580.66:200.25:375:30Full Moon29Fri
30Sat12:098.212:248.66:360.67:000.25:385:28Waning Gibbous30Sat
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 2:23 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 neap phase. Tonight's moon is 46% 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 minimum.

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 First Quarter (46% illuminated). This places Newburyport (Merrimack River), MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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