Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 2:40 am (0.6 ft)
Next high tide : in 1h 43m at 7:49 pm (7.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Aug 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:187.64:467.411:040.211:270.55:348:05Waxing Crescent1Tue
2Wed5:077.55:367.611:510.35:368:04First Quarter2Wed
3Thu6:007.36:297.712:210.512:420.35:378:03First Quarter3Thu
4Fri6:547.17:237.81:180.41:360.45:388:01First Quarter4Fri
5Sat7:516.98:207.92:160.32:330.45:398:00First Quarter5Sat
6Sun8:516.89:208.13:160.13:310.35:407:59Waxing Gibbous6Sun
7Mon9:526.810:188.24:14-0.14:290.25:417:58Waxing Gibbous7Mon
8Tue10:506.911:158.45:10-0.35:240.05:427:56Waxing Gibbous8Tue
9Wed11:467.06:04-0.56:18-0.25:437:55Full Moon9Wed
10Thu12:098.412:397.26:56-0.67:11-0.35:447:54Full Moon10Thu
11Fri1:028.41:307.47:47-0.78:03-0.45:457:52Full Moon11Fri
12Sat1:528.32:197.58:35-0.68:53-0.35:467:51Waning Gibbous12Sat
13Sun2:408.13:057.69:22-0.59:42-0.25:477:49Waning Gibbous13Sun
14Mon3:267.83:527.610:08-0.310:320.05:487:48Waning Gibbous14Mon
15Tue4:137.54:397.510:560.011:230.25:497:46Waning Gibbous15Tue
16Wed5:017.15:277.411:440.35:507:45Third Quarter16Wed
17Thu5:516.86:177.212:150.412:340.55:527:44Third Quarter17Thu
18Fri6:416.57:087.11:070.61:250.85:537:42Third Quarter18Fri
19Sat7:336.28:007.02:010.72:180.95:547:40Third Quarter19Sat
20Sun8:276.08:546.92:550.83:121.05:557:39Waning Crescent20Sun
21Mon9:226.09:487.03:490.84:041.05:567:37Waning Crescent21Mon
22Tue10:156.010:387.14:410.74:550.95:577:36Waning Crescent22Tue
23Wed11:046.211:267.25:290.65:430.85:587:34Waning Crescent23Wed
24Thu11:516.46:160.56:290.75:597:33New Moon24Thu
25Fri12:117.412:356.67:010.47:150.66:007:31New Moon25Fri
26Sat12:557.51:196.97:440.37:590.46:017:29New Moon26Sat
27Sun1:397.62:037.28:260.28:430.36:027:28New Moon27Sun
28Mon2:237.72:467.59:070.19:270.26:037:26Waxing Crescent28Mon
29Tue3:087.73:317.79:490.110:140.16:057:24Waxing Crescent29Tue
30Wed3:547.64:197.910:340.211:040.16:067:23Waxing Crescent30Wed
31Thu4:447.45:108.011:230.36:077:21First Quarter31Thu
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 11:14 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 neap phase. Tonight's moon is 41% 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 minimum.

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 Third Quarter (41% illuminated). This places Merrimacport, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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