Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 3h 02m at 8:01 am (0.5 ft)
Next high tide : 1:34 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 - Jun 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:556.911:188.35:160.05:270.45:078:16Waning Crescent1Sun
2Mon11:506.96:09-0.36:180.35:078:16New Moon2Mon
3Tue12:108.612:446.97:03-0.67:100.25:068:17New Moon3Tue
4Wed1:038.81:386.97:56-0.78:020.25:068:18New Moon4Wed
5Thu1:558.92:306.98:48-0.88:550.25:068:18Waxing Crescent5Thu
6Fri2:478.83:226.99:39-0.79:480.35:058:19Waxing Crescent6Fri
7Sat3:398.64:156.810:32-0.510:430.45:058:20Waxing Crescent7Sat
8Sun4:338.25:096.811:24-0.311:390.55:058:20Waxing Crescent8Sun
9Mon5:277.86:036.812:17-0.15:058:21First Quarter9Mon
10Tue6:217.46:576.912:360.71:080.25:048:22First Quarter10Tue
11Wed7:156.97:506.91:330.82:000.45:048:22First Quarter11Wed
12Thu8:106.58:436.92:300.82:510.65:048:23Waxing Gibbous12Thu
13Fri9:056.29:347.03:260.83:420.85:048:23Waxing Gibbous13Fri
14Sat9:586.110:227.14:190.84:310.95:048:23Waxing Gibbous14Sat
15Sun10:485.911:077.25:090.75:181.05:048:24Waxing Gibbous15Sun
16Mon11:355.911:517.35:570.66:041.15:048:24Waxing Gibbous16Mon
17Tue12:195.96:440.66:491.25:048:25Full Moon17Tue
18Wed12:347.41:035.97:290.67:331.25:058:25Full Moon18Wed
19Thu1:177.51:466.08:130.58:161.25:058:25Full Moon19Thu
20Fri2:007.52:296.18:560.58:581.25:058:25Full Moon20Fri
21Sat2:427.63:126.39:380.59:411.25:058:26Waning Gibbous21Sat
22Sun3:257.63:566.410:210.410:251.25:058:26Waning Gibbous22Sun
23Mon4:107.64:436.611:050.411:141.25:068:26Waning Gibbous23Mon
24Tue4:597.55:336.811:510.45:068:26Third Quarter24Tue
25Wed5:497.46:237.012:071.112:380.55:068:26Third Quarter25Wed
26Thu6:427.27:157.31:021.01:270.55:078:26Third Quarter26Thu
27Fri7:377.08:087.51:590.82:190.65:078:26Third Quarter27Fri
28Sat8:346.89:047.82:580.63:130.65:088:26Waning Crescent28Sat
29Sun9:346.610:008.13:570.34:080.55:088:26Waning Crescent29Sun
30Mon10:326.610:568.44:540.05:020.55:098:26Waning 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 10:47 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