Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 4h 14m at 10:08 am (0.5 ft)
Next high tide : 3:43 pm (6.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Aug 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:587.25:276.911:480.45:368:04Third Quarter1Tue
2Wed5:476.96:166.912:110.812:350.65:378:02Third Quarter2Wed
3Thu6:376.67:056.91:020.91:240.85:388:01Third Quarter3Thu
4Fri7:286.47:556.91:550.92:151.05:398:00Third Quarter4Fri
5Sat8:216.28:486.92:500.93:071.15:407:59Waning Crescent5Sat
6Sun9:156.09:407.03:440.93:591.15:417:57Waning Crescent6Sun
7Mon10:096.010:317.24:360.84:481.15:427:56Waning Crescent7Mon
8Tue10:596.111:207.45:260.65:361.05:437:55Waning Crescent8Tue
9Wed11:486.36:140.46:230.85:447:53New Moon9Wed
10Thu12:077.612:356.57:010.27:100.75:457:52New Moon10Thu
11Fri12:547.81:226.77:470.07:560.55:477:51New Moon11Fri
12Sat1:408.02:087.08:31-0.18:410.35:487:49New Moon12Sat
13Sun2:268.22:547.39:15-0.39:280.15:497:48Waxing Crescent13Sun
14Mon3:148.23:427.610:00-0.310:180.05:507:46Waxing Crescent14Mon
15Tue4:038.14:327.710:48-0.311:120.05:517:45Waxing Crescent15Tue
16Wed4:557.95:247.911:38-0.25:527:43First Quarter16Wed
17Thu5:497.66:187.912:080.012:310.05:537:42First Quarter17Thu
18Fri6:467.27:147.91:060.01:260.25:547:40First Quarter18Fri
19Sat7:446.98:127.92:050.02:230.35:557:39First Quarter19Sat
20Sun8:446.69:127.93:060.03:220.45:567:37Waxing Gibbous20Sun
21Mon9:456.510:117.94:050.04:190.45:577:35Waxing Gibbous21Mon
22Tue10:446.511:077.95:00-0.15:140.35:587:34Waxing Gibbous22Tue
23Wed11:386.511:597.85:53-0.16:060.36:007:32Full Moon23Wed
24Thu12:286.66:44-0.16:570.36:017:31Full Moon24Thu
25Fri12:487.81:156.77:32-0.17:460.26:027:29Full Moon25Fri
26Sat1:337.71:596.88:17-0.18:320.36:037:27Full Moon26Sat
27Sun2:177.62:406.99:010.19:170.36:047:26Waning Gibbous27Sun
28Mon2:597.43:227.09:430.210:020.46:057:24Waning Gibbous28Mon
29Tue3:427.34:057.110:270.410:490.56:067:22Waning Gibbous29Tue
30Wed4:267.04:507.111:120.611:380.76:077:21Waning Gibbous30Wed
31Thu5:136.85:377.011:580.86:087:19Third Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440369)

Common Questions About Merrimacport, MA Tides

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What time does the tide turn (slack tide) in Merrimacport, MA today?

Slack tide in Merrimacport, MA is approximately 12:55 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 Merrimacport, MA?

Merrimacport, MA is currently in a spring phase. Tonight's moon is 88% 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 Merrimacport, 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 Merrimacport, MA?

Tide predictions for Merrimacport, 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 Merrimacport, MA?

Tide data for Merrimacport, MA is sourced from NOAA Station #8440369. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8440369.

What is the moon phase in Merrimacport, MA tonight?

Tonight the moon over Merrimacport, MA is Waning Gibbous (88% illuminated). This places Merrimacport, 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