Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 1h 53m at 5:15 am (0.8 ft)
Next high tide : 10:51 am (5.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Mar 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:346.612:537.07:130.37:370.36:185:33Full Moon1Fri
2Sat1:146.81:337.07:550.38:160.36:165:34Waning Gibbous2Sat
3Sun1:537.02:146.98:370.38:560.56:155:36Waning Gibbous3Sun
4Mon2:347.12:566.89:200.49:370.66:135:37Waning Gibbous4Mon
5Tue3:177.23:426.610:060.510:200.86:115:38Waning Gibbous5Tue
6Wed4:037.24:306.510:550.511:070.96:095:39Third Quarter6Wed
7Thu4:527.25:216.311:460.611:581.06:085:41Third Quarter7Thu
8Fri5:447.26:146.212:410.66:065:42Third Quarter8Fri
9Sat6:387.27:116.212:531.01:380.56:045:43Third Quarter9Sat
10Sun8:367.39:096.31:510.93:360.47:036:44Waning Crescent10Sun
11Mon9:357.510:076.53:500.74:300.17:016:45Waning Crescent11Mon
12Tue10:327.711:036.94:460.35:23-0.26:596:47Waning Crescent12Tue
13Wed11:277.911:557.45:40-0.16:13-0.56:576:48Waning Crescent13Wed
14Thu12:208.16:33-0.47:03-0.76:566:49New Moon14Thu
15Fri12:477.81:138.17:26-0.87:52-0.86:546:50New Moon15Fri
16Sat1:378.22:048.18:17-1.08:40-0.86:526:51New Moon16Sat
17Sun2:278.42:537.99:08-1.19:28-0.76:506:53Waxing Crescent17Sun
18Mon3:158.53:437.610:00-1.010:17-0.46:496:54Waxing Crescent18Mon
19Tue4:058.44:357.210:53-0.711:09-0.16:476:55Waxing Crescent19Tue
20Wed4:578.15:286.811:47-0.46:456:56First Quarter20Wed
21Thu5:517.86:226.512:030.212:42-0.16:436:57First Quarter21Thu
22Fri6:467.47:176.212:580.51:380.26:426:58First Quarter22Fri
23Sat7:427.18:146.01:550.72:350.46:407:00First Quarter23Sat
24Sun8:406.99:136.02:530.83:310.56:387:01Waxing Gibbous24Sun
25Mon9:376.710:086.13:490.84:230.66:367:02Waxing Gibbous25Mon
26Tue10:306.710:576.24:420.85:120.56:357:03Waxing Gibbous26Tue
27Wed11:186.711:416.45:310.75:580.56:337:04Waxing Gibbous27Wed
28Thu12:026.76:190.56:430.56:317:05Full Moon28Thu
29Fri12:236.712:456.77:040.47:250.56:297:07Full Moon29Fri
30Sat1:046.91:266.87:480.38:060.66:287:08Full Moon30Sat
31Sun1:447.12:076.88:300.38:460.66:267:09Full Moon31Sun
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 8:03 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 92% 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 (92% 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