Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 2h 45m at 5:43 am (0.7 ft)
Next high tide : 11:22 am (5.8 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Aug 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:156.66:427.212:380.512:560.65:368:04Third Quarter1Sat
2Sun7:066.37:337.11:320.71:480.85:378:03Third Quarter2Sun
3Mon7:586.08:257.02:260.82:411.05:388:01Third Quarter3Mon
4Tue8:535.89:207.03:210.93:341.15:398:00Waning Crescent4Tue
5Wed9:485.810:127.04:140.84:261.15:407:59Waning Crescent5Wed
6Thu10:405.811:017.15:050.85:151.05:417:57Waning Crescent6Thu
7Fri11:286.011:487.35:530.76:021.05:427:56Waning Crescent7Fri
8Sat12:136.26:400.66:490.95:437:55New Moon8Sat
9Sun12:327.412:586.47:240.47:340.75:447:53New Moon9Sun
10Mon1:167.51:416.78:060.38:170.65:457:52New Moon10Mon
11Tue1:597.62:237.08:470.29:000.55:467:51Waxing Crescent11Tue
12Wed2:427.63:067.39:270.29:440.45:487:49Waxing Crescent12Wed
13Thu3:267.63:517.510:090.210:310.35:497:48Waxing Crescent13Thu
14Fri4:137.54:397.710:530.311:230.35:507:46Waxing Crescent14Fri
15Sat5:047.35:307.811:410.45:517:45First Quarter15Sat
16Sun5:577.06:247.912:180.312:340.55:527:43First Quarter16Sun
17Mon6:536.87:207.91:160.31:300.65:537:42First Quarter17Mon
18Tue7:526.68:197.92:160.22:300.65:547:40First Quarter18Tue
19Wed8:536.59:208.03:170.13:300.55:557:39Waxing Gibbous19Wed
20Thu9:556.510:218.04:160.04:290.45:567:37Waxing Gibbous20Thu
21Fri10:536.711:178.15:11-0.25:250.25:577:36Waxing Gibbous21Fri
22Sat11:486.96:04-0.36:190.05:587:34Full Moon22Sat
23Sun12:118.112:407.16:55-0.47:11-0.25:597:32Full Moon23Sun
24Mon1:028.01:297.37:44-0.48:02-0.26:017:31Full Moon24Mon
25Tue1:507.92:157.58:30-0.38:50-0.26:027:29Waning Gibbous25Tue
26Wed2:367.72:597.69:14-0.29:38-0.16:037:27Waning Gibbous26Wed
27Thu3:207.43:437.69:590.110:260.16:047:26Waning Gibbous27Thu
28Fri4:057.14:287.510:450.311:150.36:057:24Waning Gibbous28Fri
29Sat4:526.85:157.311:320.66:067:22Third Quarter29Sat
30Sun5:416.56:047.212:060.512:220.96:077:21Third Quarter30Sun
31Mon6:316.26:557.012:580.71:131.16:087:19Third Quarter31Mon
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 8:32 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 95% 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 (95% 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