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 4h 43m at 9:29 pm (1.2 ft)
Next high tide (tomorrow) : 3:13 am (7.6 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 - Sep 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:236.39:487.43:400.23:560.66:087:18Waxing Gibbous1Wed
2Thu10:206.210:427.34:350.34:500.66:097:17Waxing Gibbous2Thu
3Fri11:126.311:317.35:260.35:400.66:117:15Waxing Gibbous3Fri
4Sat11:586.46:150.36:290.66:127:13Full Moon4Sat
5Sun12:177.312:416.57:010.37:150.56:137:12Full Moon5Sun
6Mon1:007.31:236.77:440.38:000.56:147:10Full Moon6Mon
7Tue1:417.32:036.88:260.38:430.56:157:08Full Moon7Tue
8Wed2:227.32:437.09:070.49:250.56:167:06Waning Gibbous8Wed
9Thu3:037.23:247.19:480.510:080.66:177:04Waning Gibbous9Thu
10Fri3:457.14:067.110:290.710:540.76:187:03Waning Gibbous10Fri
11Sat4:306.94:527.211:130.911:420.76:197:01Waning Gibbous11Sat
12Sun5:176.75:407.212:001.06:206:59Third Quarter12Sun
13Mon6:076.66:307.212:330.812:491.26:216:57Third Quarter13Mon
14Tue6:596.47:237.21:260.81:421.26:226:56Third Quarter14Tue
15Wed7:546.48:187.32:210.82:371.26:236:54Third Quarter15Wed
16Thu8:516.49:157.53:180.63:331.06:256:52Waning Crescent16Thu
17Fri9:486.610:127.74:130.44:280.76:266:50Waning Crescent17Fri
18Sat10:436.911:068.05:050.15:210.46:276:48Waning Crescent18Sat
19Sun11:367.311:598.35:56-0.26:130.06:286:47New Moon19Sun
20Mon12:277.76:45-0.57:04-0.46:296:45New Moon20Mon
21Tue12:518.41:188.07:35-0.67:56-0.76:306:43New Moon21Tue
22Wed1:428.42:078.38:23-0.78:47-0.86:316:41Waxing Crescent22Wed
23Thu2:338.32:578.59:11-0.79:39-0.96:326:39Waxing Crescent23Thu
24Fri3:248.13:478.510:00-0.510:32-0.76:336:38Waxing Crescent24Fri
25Sat4:157.74:388.410:51-0.211:27-0.56:346:36Waxing Crescent25Sat
26Sun5:097.35:328.111:450.16:356:34First Quarter26Sun
27Mon6:046.96:277.812:23-0.312:410.46:366:32First Quarter27Mon
28Tue7:006.67:247.51:190.01:370.66:386:30First Quarter28Tue
29Wed7:586.48:227.32:160.22:350.86:396:29First Quarter29Wed
30Thu8:576.39:207.13:130.43:320.86:406:27Waxing Gibbous30Thu
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 12:21 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 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