Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 9:29 pm (1.2 ft)
Next high tide : in 4h 10m at 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 - Apr 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:557.44:216.910:440.310:580.86:257:09Waxing Crescent1Thu
2Fri4:407.45:106.711:320.411:450.96:237:11Waxing Crescent2Fri
3Sat5:297.56:016.612:240.46:227:12First Quarter3Sat
4Sun6:227.56:556.512:371.01:180.46:207:13First Quarter4Sun
5Mon7:177.57:516.51:321.02:150.36:187:14First Quarter5Mon
6Tue8:147.68:506.62:320.93:130.26:167:15First Quarter6Tue
7Wed9:147.79:496.93:310.74:100.06:157:16Waxing Gibbous7Wed
8Thu10:137.810:467.24:290.35:03-0.36:137:18Waxing Gibbous8Thu
9Fri11:108.011:407.65:24-0.15:55-0.56:117:19Waxing Gibbous9Fri
10Sat12:048.16:18-0.46:46-0.66:107:20Full Moon10Sat
11Sun12:318.012:578.17:11-0.77:36-0.76:087:21Full Moon11Sun
12Mon1:228.31:498.08:03-0.98:24-0.66:067:22Full Moon12Mon
13Tue2:118.52:387.88:54-1.09:12-0.56:057:23Waning Gibbous13Tue
14Wed2:598.53:277.59:44-0.910:01-0.26:037:24Waning Gibbous14Wed
15Thu3:478.44:177.210:35-0.610:510.16:017:26Waning Gibbous15Thu
16Fri4:378.15:086.911:28-0.411:440.46:007:27Waning Gibbous16Fri
17Sat5:287.86:016.612:21-0.15:587:28Third Quarter17Sat
18Sun6:217.46:546.312:380.71:150.25:567:29Third Quarter18Sun
19Mon7:157.17:496.21:330.92:090.55:557:30Third Quarter19Mon
20Tue8:106.98:456.22:291.03:040.65:537:31Third Quarter20Tue
21Wed9:066.79:396.23:241.03:570.65:527:32Waning Crescent21Wed
22Thu10:006.710:306.44:180.94:460.65:507:34Waning Crescent22Thu
23Fri10:506.711:166.65:080.85:330.65:497:35Waning Crescent23Fri
24Sat11:376.711:596.95:560.76:180.65:477:36Waning Crescent24Sat
25Sun12:216.86:420.57:020.65:467:37New Moon25Sun
26Mon12:417.11:046.87:270.47:440.65:447:38New Moon26Mon
27Tue1:227.31:466.98:100.38:250.75:437:39New Moon27Tue
28Wed2:037.52:286.98:530.29:050.85:417:41New Moon28Wed
29Thu2:447.73:126.99:350.29:460.85:407:42Waxing Crescent29Thu
30Fri3:287.83:576.910:200.210:290.95:397:43Waxing Crescent30Fri
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 6:14 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 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