Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 5h 16m at 10:08 am (0.5 ft)
Next high tide : 3:43 pm (6.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jul 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:528.04:246.810:43-0.210:580.65:098:26Waning Gibbous1Sat
2Sun4:417.75:146.711:330.011:500.75:108:26Waning Gibbous2Sun
3Mon5:317.46:046.712:220.25:118:25Third Quarter3Mon
4Tue6:227.06:546.712:430.91:120.45:118:25Third Quarter4Tue
5Wed7:126.77:446.81:371.02:020.65:128:25Third Quarter5Wed
6Thu8:056.58:366.82:311.02:530.85:138:24Third Quarter6Thu
7Fri8:586.39:276.93:250.93:430.95:138:24Waning Crescent7Fri
8Sat9:516.110:167.14:180.84:320.95:148:24Waning Crescent8Sat
9Sun10:426.111:037.25:080.75:201.05:158:23Waning Crescent9Sun
10Mon11:306.111:497.45:560.66:061.05:158:23Waning Crescent10Mon
11Tue12:166.26:430.56:511.05:168:22New Moon11Tue
12Wed12:347.61:026.37:290.37:360.95:178:22New Moon12Wed
13Thu1:197.81:476.58:140.28:200.85:188:21New Moon13Thu
14Fri2:037.92:326.78:580.19:040.75:198:20New Moon14Fri
15Sat2:488.03:186.89:420.09:490.75:198:20Waxing Crescent15Sat
16Sun3:358.14:067.010:27-0.110:390.65:208:19Waxing Crescent16Sun
17Mon4:248.04:567.211:15-0.111:320.55:218:18Waxing Crescent17Mon
18Tue5:167.95:497.412:05-0.15:228:18First Quarter18Tue
19Wed6:107.76:437.612:280.412:570.05:238:17First Quarter19Wed
20Thu7:067.47:387.81:260.31:510.15:248:16First Quarter20Thu
21Fri8:047.18:357.92:260.22:460.15:258:15First Quarter21Fri
22Sat9:046.99:338.03:260.03:430.25:268:14Waxing Gibbous22Sat
23Sun10:036.810:308.24:24-0.14:380.25:278:13Waxing Gibbous23Sun
24Mon11:016.711:248.35:20-0.35:320.25:288:12Waxing Gibbous24Mon
25Tue11:566.76:14-0.46:240.25:298:11Full Moon25Tue
26Wed12:178.312:486.77:06-0.47:160.25:308:10Full Moon26Wed
27Thu1:078.21:376.77:56-0.48:060.25:318:09Full Moon27Thu
28Fri1:558.12:246.88:43-0.38:540.35:328:08Waning Gibbous28Fri
29Sat2:418.03:096.89:29-0.29:420.45:338:07Waning Gibbous29Sat
30Sun3:267.83:546.810:140.010:300.55:348:06Waning Gibbous30Sun
31Mon4:117.54:406.811:010.211:200.75:358:05Waning Gibbous31Mon
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 12:55 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 88% 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 (88% 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