Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 1h 33m at 10:39 pm (1.4 ft)
Next high tide (tomorrow) : 4:23 am (7.4 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Aug 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:556.010:197.44:140.44:240.75:368:04Waxing Gibbous1Tue
2Wed10:515.911:127.45:080.45:160.85:378:03Waxing Gibbous2Wed
3Thu11:415.911:597.45:580.46:060.85:388:01Full Moon3Thu
4Fri12:276.06:460.46:540.85:398:00Full Moon4Fri
5Sat12:447.41:106.27:310.47:400.85:407:59Full Moon5Sat
6Sun1:277.31:516.48:140.48:240.75:417:58Full Moon6Sun
7Mon2:087.32:316.68:550.49:070.75:427:56Waning Gibbous7Mon
8Tue2:487.33:126.79:350.59:500.85:437:55Waning Gibbous8Tue
9Wed3:307.23:536.910:160.610:350.85:447:54Waning Gibbous9Wed
10Thu4:137.04:377.010:580.711:220.95:457:52Waning Gibbous10Thu
11Fri4:596.85:237.011:420.95:467:51Third Quarter11Fri
12Sat5:476.56:127.112:120.912:281.15:477:49Third Quarter12Sat
13Sun6:376.37:027.11:041.01:171.25:487:48Third Quarter13Sun
14Mon7:306.17:557.21:591.02:101.35:497:47Third Quarter14Mon
15Tue8:266.08:527.32:560.93:061.25:517:45Waning Crescent15Tue
16Wed9:246.19:497.63:530.74:021.15:527:44Waning Crescent16Wed
17Thu10:216.210:447.94:470.44:550.85:537:42Waning Crescent17Thu
18Fri11:156.511:388.15:380.15:480.55:547:40Waning Crescent18Fri
19Sat12:086.96:29-0.26:400.15:557:39New Moon19Sat
20Sun12:308.412:597.37:18-0.47:32-0.25:567:37New Moon20Sun
21Mon1:228.51:497.78:06-0.68:24-0.55:577:36New Moon21Mon
22Tue2:128.42:398.08:53-0.79:15-0.65:587:34Waxing Crescent22Tue
23Wed3:028.23:288.29:40-0.610:08-0.65:597:33Waxing Crescent23Wed
24Thu3:537.94:188.310:29-0.411:02-0.56:007:31Waxing Crescent24Thu
25Fri4:457.55:118.211:21-0.111:58-0.26:017:29First Quarter25Fri
26Sat5:397.06:058.012:140.26:027:28First Quarter26Sat
27Sun6:356.67:007.712:550.01:100.56:047:26First Quarter27Sun
28Mon7:316.27:587.41:530.32:070.76:057:24First Quarter28Mon
29Tue8:316.08:577.22:510.53:050.96:067:23Waxing Gibbous29Tue
30Wed9:315.99:557.13:490.64:010.96:077:21Waxing Gibbous30Wed
31Thu10:275.910:487.14:420.64:540.96:087:19Waxing Gibbous31Thu
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 1:31 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 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 Waning 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