Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 4h 56m at 1:08 pm (0.6 ft)
Next high tide : 6:56 pm (7.3 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Apr 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:397.53:056.89:260.29:360.76:257:10Waxing Crescent1Sun
2Mon3:227.63:506.710:100.210:170.86:237:11Waxing Crescent2Mon
3Tue4:077.74:396.610:590.211:040.96:217:12Waxing Crescent3Tue
4Wed4:577.75:326.411:520.211:581.06:207:13First Quarter4Wed
5Thu5:517.76:286.312:490.36:187:14First Quarter5Thu
6Fri6:497.77:266.312:581.11:480.36:167:15First Quarter6Fri
7Sat7:497.68:276.32:001.02:480.26:157:16First Quarter7Sat
8Sun8:517.69:296.63:030.83:460.16:137:18Waxing Gibbous8Sun
9Mon9:537.610:276.94:040.54:41-0.16:117:19Waxing Gibbous9Mon
10Tue10:517.611:217.35:020.15:33-0.26:097:20Waxing Gibbous10Tue
11Wed11:467.65:56-0.26:22-0.36:087:21Full Moon11Wed
12Thu12:127.712:387.56:49-0.47:10-0.26:067:22Full Moon12Thu
13Fri1:008.01:277.37:40-0.57:57-0.16:047:23Full Moon13Fri
14Sat1:468.12:147.18:29-0.68:420.16:037:25Full Moon14Sat
15Sun2:318.12:596.99:17-0.49:270.36:017:26Waning Gibbous15Sun
16Mon3:158.03:456.610:04-0.210:140.66:007:27Waning Gibbous16Mon
17Tue4:017.84:326.410:530.111:030.95:587:28Waning Gibbous17Tue
18Wed4:497.55:216.111:440.411:551.15:567:29Third Quarter18Wed
19Thu5:397.26:125.912:360.65:557:30Third Quarter19Thu
20Fri6:327.07:055.812:491.31:290.85:537:31Third Quarter20Fri
21Sat7:256.87:595.81:441.42:240.95:527:33Third Quarter21Sat
22Sun8:216.68:555.92:401.43:171.05:507:34Third Quarter22Sun
23Mon9:176.59:486.23:361.34:080.95:497:35Waning Crescent23Mon
24Tue10:106.510:376.44:291.14:550.95:477:36Waning Crescent24Tue
25Wed10:596.611:226.85:180.95:400.85:467:37Waning Crescent25Wed
26Thu11:446.66:050.76:230.85:447:38Waning Crescent26Thu
27Fri12:047.112:296.66:510.57:050.85:437:39New Moon27Fri
28Sat12:477.41:136.77:360.37:460.85:417:41New Moon28Sat
29Sun1:297.71:586.78:200.18:270.85:407:42New Moon29Sun
30Mon2:127.92:436.79:040.09:090.85:387:43Waxing Crescent30Mon
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 4:02 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 52% 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 (52% 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