Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 1h 00m at 9:26 am (0.5 ft)
Next high tide : 2:59 pm (6.2 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Oct 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:406.18:027.42:050.82:151.46:416:25First Quarter1Sun
2Mon8:406.29:037.53:040.63:171.26:426:24Waxing Gibbous2Mon
3Tue9:406.510:037.74:000.44:150.86:436:22Waxing Gibbous3Tue
4Wed10:366.910:597.94:530.15:100.36:446:20Waxing Gibbous4Wed
5Thu11:297.411:538.05:44-0.26:04-0.16:456:18Full Moon5Thu
6Fri12:197.96:33-0.36:57-0.56:466:17Full Moon6Fri
7Sat12:458.01:098.37:21-0.47:49-0.76:486:15Full Moon7Sat
8Sun1:367.81:578.58:08-0.38:40-0.86:496:13Full Moon8Sun
9Mon2:267.62:458.68:55-0.29:30-0.86:506:12Waning Gibbous9Mon
10Tue3:157.33:338.59:430.110:22-0.56:516:10Waning Gibbous10Tue
11Wed4:056.94:238.210:330.411:15-0.26:526:08Waning Gibbous11Wed
12Thu4:576.65:167.911:260.76:536:06Third Quarter12Thu
13Fri5:516.36:117.512:100.112:221.06:556:05Third Quarter13Fri
14Sat6:466.07:077.11:060.41:191.26:566:03Third Quarter14Sat
15Sun7:435.98:046.92:020.72:181.36:576:02Third Quarter15Sun
16Mon8:415.99:036.72:580.83:151.26:586:00Waning Crescent16Mon
17Tue9:386.09:586.63:520.84:101.16:595:58Waning Crescent17Tue
18Wed10:296.210:486.64:410.85:011.07:005:57Waning Crescent18Wed
19Thu11:136.511:336.65:270.75:480.87:025:55Waning Crescent19Thu
20Fri11:546.86:100.76:340.67:035:54New Moon20Fri
21Sat12:156.612:347.06:520.87:180.57:045:52New Moon21Sat
22Sun12:576.61:137.27:330.98:010.47:055:51New Moon22Sun
23Mon1:386.61:527.48:120.98:420.47:075:49New Moon23Mon
24Tue2:196.52:327.58:501.09:240.47:085:48Waxing Crescent24Tue
25Wed3:016.53:147.69:291.210:080.47:095:46Waxing Crescent25Wed
26Thu3:456.43:597.610:091.310:550.57:105:45Waxing Crescent26Thu
27Fri4:336.34:497.610:561.411:470.57:115:43Waxing Crescent27Fri
28Sat5:256.25:427.511:511.47:135:42First Quarter28Sat
29Sun5:216.25:397.512:420.511:51 AM1.46:144:40First Quarter29Sun
30Mon6:186.36:387.512:390.512:521.26:154:39First Quarter30Mon
31Tue7:176.57:387.41:360.41:550.96:164:38Waxing Gibbous31Tue
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 12:12 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 94% 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 (94% 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