Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 11:23 pm (0.4 ft)
Next high tide : in 4h 56m at 4:53 pm (6.9 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:348.07:117.312:500.41:26-0.35:078:16First Quarter1Sun
2Mon7:327.78:097.31:500.42:21-0.25:078:16First Quarter2Mon
3Tue8:317.39:077.42:490.33:17-0.15:068:17Waxing Gibbous3Tue
4Wed9:317.110:037.53:480.34:100.05:068:18Waxing Gibbous4Wed
5Thu10:276.910:547.64:430.25:010.15:068:19Waxing Gibbous5Thu
6Fri11:196.711:417.75:350.15:500.35:058:19Waxing Gibbous6Fri
7Sat12:076.66:250.16:370.45:058:20Full Moon7Sat
8Sun12:267.712:536.57:130.07:240.65:058:21Full Moon8Sun
9Mon1:097.71:366.57:590.18:080.75:058:21Full Moon9Mon
10Tue1:517.72:196.58:430.18:520.85:058:22Full Moon10Tue
11Wed2:337.73:016.59:270.29:360.95:048:22Waning Gibbous11Wed
12Thu3:167.63:456.510:110.310:211.15:048:23Waning Gibbous12Thu
13Fri4:007.54:316.510:570.411:091.25:048:23Waning Gibbous13Fri
14Sat4:477.45:196.511:440.511:591.25:048:24Waning Gibbous14Sat
15Sun5:357.36:086.612:320.65:048:24Third Quarter15Sun
16Mon6:257.16:586.712:501.31:210.65:048:24Third Quarter16Mon
17Tue7:167.07:496.81:431.22:110.75:048:25Third Quarter17Tue
18Wed8:096.88:417.02:381.13:020.75:058:25Third Quarter18Wed
19Thu9:046.89:347.33:320.93:520.75:058:25Waning Crescent19Thu
20Fri9:586.810:257.64:250.64:410.65:058:26Waning Crescent20Fri
21Sat10:516.811:158.05:160.35:290.55:058:26Waning Crescent21Sat
22Sun11:436.96:070.06:180.45:058:26New Moon22Sun
23Mon12:058.312:357.16:58-0.37:070.25:068:26New Moon23Mon
24Tue12:558.61:277.27:48-0.67:580.15:068:26New Moon24Tue
25Wed1:468.82:187.38:38-0.88:480.05:068:26New Moon25Wed
26Thu2:378.93:107.49:29-0.99:41-0.15:078:26Waxing Crescent26Thu
27Fri3:298.84:037.410:20-0.910:350.05:078:26Waxing Crescent27Fri
28Sat4:228.64:577.511:13-0.811:320.05:088:26Waxing Crescent28Sat
29Sun5:178.35:537.512:07-0.65:088:26First Quarter29Sun
30Mon6:137.96:487.512:300.11:01-0.45:098:26First Quarter30Mon
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 8:08 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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Waxing Crescent (27% illuminated). This places Merrimacport, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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