Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 1h 38m at 4:15 pm (0.9 ft)
Next high tide : 10:07 pm (7.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Aug 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:367.25:047.111:250.611:490.95:358:05Waxing Crescent1Fri
2Sat5:247.15:527.212:110.75:368:03First Quarter2Sat
3Sun6:146.96:427.312:400.912:590.85:378:02First Quarter3Sun
4Mon7:066.77:347.41:330.81:500.85:388:01First Quarter4Mon
5Tue8:016.68:297.62:300.72:450.85:398:00First Quarter5Tue
6Wed8:596.69:267.83:270.53:400.75:407:58Waxing Gibbous6Wed
7Thu9:576.710:228.14:220.24:350.55:417:57Waxing Gibbous7Thu
8Fri10:536.911:178.35:16-0.15:280.25:427:56Waxing Gibbous8Fri
9Sat11:477.16:09-0.46:22-0.15:437:54Full Moon9Sat
10Sun12:118.612:417.47:00-0.77:15-0.45:447:53Full Moon10Sun
11Mon1:048.71:337.77:51-0.98:08-0.65:467:52Full Moon11Mon
12Tue1:568.72:247.98:40-0.98:59-0.75:477:50Waning Gibbous12Tue
13Wed2:478.63:148.19:29-0.99:52-0.65:487:49Waning Gibbous13Wed
14Thu3:378.34:058.110:19-0.710:45-0.55:497:47Waning Gibbous14Thu
15Fri4:297.94:568.011:10-0.511:40-0.35:507:46Waning Gibbous15Fri
16Sat5:217.45:497.812:02-0.25:517:44Third Quarter16Sat
17Sun6:157.06:427.612:350.012:550.25:527:43Third Quarter17Sun
18Mon7:096.67:367.41:310.21:490.45:537:41Third Quarter18Mon
19Tue8:046.38:327.22:270.42:440.65:547:40Waning Crescent19Tue
20Wed9:016.19:287.13:230.53:390.85:557:38Waning Crescent20Wed
21Thu9:576.110:217.14:170.64:310.85:567:37Waning Crescent21Thu
22Fri10:486.111:097.15:070.55:210.85:577:35Waning Crescent22Fri
23Sat11:346.211:547.25:550.56:090.75:597:34New Moon23Sat
24Sun12:186.46:410.56:550.76:007:32New Moon24Sun
25Mon12:377.21:006.67:250.47:390.66:017:30New Moon25Mon
26Tue1:197.31:426.88:070.48:220.56:027:29New Moon26Tue
27Wed2:017.32:237.08:480.49:050.56:037:27Waxing Crescent27Wed
28Thu2:427.33:047.29:280.49:470.56:047:25Waxing Crescent28Thu
29Fri3:247.33:467.310:080.510:310.66:057:24Waxing Crescent29Fri
30Sat4:087.24:327.410:510.611:190.66:067:22Waxing Crescent30Sat
31Sun4:567.05:207.511:370.76:077:20First Quarter31Sun
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 7:11 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 84% 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 Waxing Gibbous (84% 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