Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 3h 50m at 10:39 pm (1.4 ft)
Next high tide (tomorrow) : 4:23 am (7.4 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:427.48:177.52:010.52:290.05:078:16First Quarter1Thu
2Fri8:427.19:157.73:010.33:240.15:078:16Waxing Gibbous2Fri
3Sat9:416.910:107.94:000.14:170.25:068:17Waxing Gibbous3Sat
4Sun10:396.711:038.14:560.05:090.35:068:18Waxing Gibbous4Sun
5Mon11:326.611:538.15:50-0.15:590.45:068:19Full Moon5Mon
6Tue12:246.56:42-0.26:490.55:058:19Full Moon6Tue
7Wed12:418.11:126.47:31-0.27:380.65:058:20Full Moon7Wed
8Thu1:288.01:596.48:19-0.18:250.75:058:20Full Moon8Thu
9Fri2:137.92:436.39:050.09:120.85:058:21Waning Gibbous9Fri
10Sat2:577.83:276.39:500.29:580.95:058:22Waning Gibbous10Sat
11Sun3:427.64:136.310:360.310:471.15:048:22Waning Gibbous11Sun
12Mon4:287.45:006.411:230.511:371.25:048:23Waning Gibbous12Mon
13Tue5:177.25:496.512:110.65:048:23Third Quarter13Tue
14Wed6:066.96:386.612:291.212:590.75:048:24Third Quarter14Wed
15Thu6:566.77:286.71:221.21:470.95:048:24Third Quarter15Thu
16Fri7:486.58:186.82:161.22:371.05:048:24Third Quarter16Fri
17Sat8:416.39:097.03:101.13:271.15:048:25Waning Crescent17Sat
18Sun9:356.210:007.24:031.04:161.15:058:25Waning Crescent18Sun
19Mon10:276.110:487.44:540.85:031.15:058:25Waning Crescent19Mon
20Tue11:176.211:367.75:440.55:501.05:058:25Waning Crescent20Tue
21Wed12:066.36:320.36:370.95:058:26New Moon21Wed
22Thu12:248.012:556.47:210.17:240.85:058:26New Moon22Thu
23Fri1:138.21:456.68:08-0.18:120.65:068:26New Moon23Fri
24Sat2:018.42:346.88:55-0.39:010.55:068:26Waxing Crescent24Sat
25Sun2:518.53:237.19:43-0.49:520.35:068:26Waxing Crescent25Sun
26Mon3:418.54:157.210:32-0.510:460.35:078:26Waxing Crescent26Mon
27Tue4:338.35:087.411:23-0.411:430.25:078:26Waxing Crescent27Tue
28Wed5:288.06:027.612:15-0.35:088:26First Quarter28Wed
29Thu6:247.66:577.712:420.21:08-0.15:088:26First Quarter29Thu
30Fri7:217.27:537.81:410.22:020.15:098:26First Quarter30Fri
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 1:31 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 84% 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 (84% 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