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 4h 00m 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 - Oct 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:176.86:407.812:390.312:550.86:416:25First Quarter1Wed
2Thu7:146.87:387.81:360.31:540.86:426:24First Quarter2Thu
3Fri8:126.98:387.82:350.22:540.66:436:22Waxing Gibbous3Fri
4Sat9:127.09:387.83:320.03:540.36:446:20Waxing Gibbous4Sat
5Sun10:117.310:367.94:28-0.24:500.06:456:18Waxing Gibbous5Sun
6Mon11:067.711:318.05:20-0.45:45-0.46:466:17Waxing Gibbous6Mon
7Tue11:588.06:11-0.56:38-0.66:486:15Full Moon7Tue
8Wed12:247.912:488.27:01-0.57:30-0.86:496:13Full Moon8Wed
9Thu1:157.81:378.47:50-0.58:20-0.86:506:11Full Moon9Thu
10Fri2:047.72:248.48:38-0.39:09-0.76:516:10Waning Gibbous10Fri
11Sat2:517.53:108.39:25-0.19:57-0.56:526:08Waning Gibbous11Sat
12Sun3:387.23:578.010:130.210:47-0.26:536:06Waning Gibbous12Sun
13Mon4:266.94:467.811:030.511:390.16:556:05Waning Gibbous13Mon
14Tue5:166.65:367.511:550.86:566:03Third Quarter14Tue
15Wed6:086.46:287.212:310.312:481.06:576:01Third Quarter15Wed
16Thu7:006.37:217.01:230.51:421.16:586:00Third Quarter16Thu
17Fri7:546.28:166.82:170.72:381.16:595:58Third Quarter17Fri
18Sat8:486.39:116.73:100.73:321.07:015:57Waning Crescent18Sat
19Sun9:426.410:046.74:020.74:240.97:025:55Waning Crescent19Sun
20Mon10:316.710:526.84:500.65:130.77:035:54Waning Crescent20Mon
21Tue11:166.911:386.85:360.66:010.57:045:52Waning Crescent21Tue
22Wed12:007.26:200.66:460.47:055:50New Moon22Wed
23Thu12:236.912:427.47:040.67:310.27:075:49New Moon23Thu
24Fri1:077.01:257.77:460.58:150.17:085:47New Moon24Fri
25Sat1:507.02:087.98:270.68:580.07:095:46New Moon25Sat
26Sun2:357.12:528.09:090.69:43-0.17:105:45Waxing Crescent26Sun
27Mon3:207.13:388.19:530.610:31-0.17:125:43Waxing Crescent27Mon
28Tue4:097.04:288.110:420.711:23-0.17:135:42Waxing Crescent28Tue
29Wed5:027.05:228.011:360.77:145:40First Quarter29Wed
30Thu5:577.06:187.912:17-0.112:340.77:155:39First Quarter30Thu
31Fri6:547.07:167.81:13-0.11:340.67:175:38First Quarter31Fri
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