Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 5h 57m at 6:36 pm (1.2 ft)
Next high tide (tomorrow) : 12:22 am (7.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:557.64:266.310:500.411:011.15:078:15Waning Gibbous1Tue
2Wed4:427.45:146.411:380.511:521.25:078:16Waning Gibbous2Wed
3Thu5:317.26:046.412:260.65:078:17Third Quarter3Thu
4Fri6:216.96:536.512:441.31:150.85:068:17Third Quarter4Fri
5Sat7:126.77:436.61:371.32:040.95:068:18Third Quarter5Sat
6Sun8:046.58:356.82:321.22:541.05:058:19Third Quarter6Sun
7Mon8:576.49:267.03:261.13:441.05:058:19Waning Crescent7Mon
8Tue9:516.310:157.34:180.94:321.05:058:20Waning Crescent8Tue
9Wed10:426.311:037.55:080.75:181.05:058:21Waning Crescent9Wed
10Thu11:326.411:517.85:570.46:050.95:058:21Waning Crescent10Thu
11Fri12:216.56:460.26:510.85:048:22New Moon11Fri
12Sat12:388.11:106.67:340.07:390.75:048:22New Moon12Sat
13Sun1:278.41:596.88:22-0.38:270.55:048:23New Moon13Sun
14Mon2:168.52:496.99:10-0.49:160.45:048:23Waxing Crescent14Mon
15Tue3:068.63:397.19:59-0.510:080.35:048:24Waxing Crescent15Tue
16Wed3:578.54:327.210:50-0.511:040.35:048:24Waxing Crescent16Wed
17Thu4:518.35:277.411:42-0.45:048:24First Quarter17Thu
18Fri5:478.06:227.512:020.312:35-0.35:048:25First Quarter18Fri
19Sat6:437.67:177.61:010.31:28-0.15:058:25First Quarter19Sat
20Sun7:407.28:147.72:000.32:220.15:058:25First Quarter20Sun
21Mon8:396.89:117.83:000.23:170.25:058:26Waxing Gibbous21Mon
22Tue9:386.510:067.83:580.24:110.45:058:26Waxing Gibbous22Tue
23Wed10:356.310:587.84:530.15:030.55:058:26Waxing Gibbous23Wed
24Thu11:286.211:477.85:460.15:530.65:068:26Full Moon24Thu
25Fri12:176.16:360.16:430.75:068:26Full Moon25Fri
26Sat12:347.71:036.17:240.27:300.85:068:26Full Moon26Sat
27Sun1:187.71:476.28:100.28:160.85:078:26Full Moon27Sun
28Mon2:027.72:306.38:540.29:010.95:078:26Waning Gibbous28Mon
29Tue2:447.63:126.39:370.39:461.05:088:26Waning Gibbous29Tue
30Wed3:277.53:566.410:200.410:321.05:088:26Waning Gibbous30Wed
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 9:29 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 98% 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 Full Moon (98% 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