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 3h 07m at 10:35 am (0.6 ft)
Next high tide : 4:09 pm (6.2 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 - Oct 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:337.61:548.28:05-0.28:35-0.66:416:26New Moon1Fri
2Sat2:217.42:398.28:510.09:23-0.46:426:24Waxing Crescent2Sat
3Sun3:067.13:248.19:360.310:12-0.26:436:22Waxing Crescent3Sun
4Mon3:526.84:107.810:230.611:020.16:446:20Waxing Crescent4Mon
5Tue4:406.54:597.611:130.911:540.46:456:19First Quarter5Tue
6Wed5:306.25:507.312:061.16:466:17First Quarter6Wed
7Thu6:236.06:437.012:470.71:001.36:476:15First Quarter7Thu
8Fri7:165.97:376.81:410.91:551.46:496:13First Quarter8Fri
9Sat8:115.88:346.72:350.92:521.46:506:12Waxing Gibbous9Sat
10Sun9:075.99:296.73:290.93:471.36:516:10Waxing Gibbous10Sun
11Mon10:006.210:216.74:200.94:381.16:526:08Waxing Gibbous11Mon
12Tue10:486.411:096.85:060.85:270.96:536:07Waxing Gibbous12Tue
13Wed11:326.811:536.85:510.76:130.76:546:05Full Moon13Wed
14Thu12:147.16:330.76:580.56:566:03Full Moon14Thu
15Fri12:376.812:557.47:150.77:420.36:576:02Full Moon15Fri
16Sat1:206.91:377.67:550.78:250.26:586:00Full Moon16Sat
17Sun2:036.92:197.98:350.79:090.16:595:58Waning Gibbous17Sun
18Mon2:486.83:038.09:150.89:550.17:005:57Waning Gibbous18Mon
19Tue3:346.83:518.09:590.910:450.17:025:55Waning Gibbous19Tue
20Wed4:246.74:428.010:500.911:390.17:035:54Waning Gibbous20Wed
21Thu5:196.55:387.911:471.07:045:52Third Quarter21Thu
22Fri6:166.56:377.812:370.212:481.07:055:51Third Quarter22Fri
23Sat7:156.57:377.61:350.21:510.97:065:49Third Quarter23Sat
24Sun8:156.78:397.52:330.12:530.77:085:48Waning Crescent24Sun
25Mon9:167.09:407.43:300.13:540.47:095:46Waning Crescent25Mon
26Tue10:147.310:387.44:240.04:510.17:105:45Waning Crescent26Tue
27Wed11:067.711:327.35:15-0.15:45-0.27:115:43Waning Crescent27Wed
28Thu11:557.96:040.06:36-0.47:135:42New Moon28Thu
29Fri12:237.112:428.16:520.07:26-0.47:145:40New Moon29Fri
30Sat1:117.01:288.17:380.28:14-0.47:155:39New Moon30Sat
31Sun1:576.82:128.18:240.49:01-0.37:165:38Waxing Crescent31Sun
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 1:22 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 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