Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 5h 53m at 7:17 am (0.6 ft)
Next high tide : 12:51 pm (5.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:08 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Nov 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:197.32:378.58:49-0.19:26-0.77:185:36Waning Gibbous1Tue
2Wed3:077.13:258.39:380.110:15-0.57:195:35Waning Gibbous2Wed
3Thu3:556.94:138.010:280.411:06-0.27:215:33Waning Gibbous3Thu
4Fri4:456.75:047.611:210.611:580.17:225:32Third Quarter4Fri
5Sat5:376.55:567.312:140.87:235:31Third Quarter5Sat
6Sun5:296.45:487.012:500.312:091.06:244:30Third Quarter6Sun
7Mon6:226.46:426.712:420.51:041.06:264:29Third Quarter7Mon
8Tue7:156.47:366.61:340.61:591.06:274:27Waning Crescent8Tue
9Wed8:086.58:306.52:260.72:530.96:284:26Waning Crescent9Wed
10Thu8:596.79:216.43:160.73:440.76:304:25Waning Crescent10Thu
11Fri9:466.910:096.44:030.74:320.66:314:24Waning Crescent11Fri
12Sat10:307.210:546.54:480.75:180.46:324:23New Moon12Sat
13Sun11:137.411:386.55:320.76:040.36:334:22New Moon13Sun
14Mon11:557.66:150.76:480.26:354:21New Moon14Mon
15Tue12:226.612:387.86:580.77:320.16:364:20New Moon15Tue
16Wed1:066.71:227.97:400.78:160.06:374:19Waxing Crescent16Wed
17Thu1:516.72:078.08:220.79:01-0.16:384:19Waxing Crescent17Thu
18Fri2:386.82:548.09:080.79:49-0.16:404:18Waxing Crescent18Fri
19Sat3:276.83:458.010:000.710:41-0.16:414:17Waxing Crescent19Sat
20Sun4:206.94:407.810:560.711:34-0.16:424:16First Quarter20Sun
21Mon5:167.05:367.711:540.66:434:16First Quarter21Mon
22Tue6:127.26:347.512:28-0.112:540.56:444:15First Quarter22Tue
23Wed7:097.47:337.31:24-0.11:540.26:464:14Waxing Gibbous23Wed
24Thu8:077.78:337.22:20-0.12:530.06:474:14Waxing Gibbous24Thu
25Fri9:047.99:317.13:14-0.23:50-0.36:484:13Waxing Gibbous25Fri
26Sat9:588.210:267.04:07-0.24:44-0.56:494:13Waxing Gibbous26Sat
27Sun10:498.311:197.04:58-0.25:36-0.76:504:12Full Moon27Sun
28Mon11:398.45:48-0.16:27-0.76:514:12Full Moon28Mon
29Tue12:096.912:278.46:380.07:16-0.76:524:11Full Moon29Tue
30Wed12:586.81:148.27:260.18:04-0.66:544:11Waning Gibbous30Wed
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 10:04 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 100% 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 Full Moon (100% 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