Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 11:51 pm (1.1 ft)
Next high tide : in 2h 20m at 5:16 pm (6.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:488.53:226.69:40-0.49:470.65:078:16Waxing Crescent1Tue
2Wed3:378.24:116.510:30-0.210:390.85:078:17Waxing Crescent2Wed
3Thu4:277.95:026.311:220.111:331.05:068:17Waxing Crescent3Thu
4Fri5:187.55:546.312:130.35:068:18First Quarter4Fri
5Sat6:117.26:466.312:271.11:040.55:068:19First Quarter5Sat
6Sun7:036.97:386.41:221.21:540.75:058:19First Quarter6Sun
7Mon7:566.68:306.52:181.22:450.85:058:20First Quarter7Mon
8Tue8:506.49:216.73:131.23:350.95:058:21Waxing Gibbous8Tue
9Wed9:436.210:106.94:061.04:231.05:058:21Waxing Gibbous9Wed
10Thu10:336.110:557.14:560.95:091.05:058:22Waxing Gibbous10Thu
11Fri11:216.111:397.35:440.75:541.15:048:22Waxing Gibbous11Fri
12Sat12:066.16:310.66:381.25:048:23Full Moon12Sat
13Sun12:227.412:516.17:170.57:221.25:048:23Full Moon13Sun
14Mon1:067.61:366.28:020.48:051.25:048:24Full Moon14Mon
15Tue1:497.72:206.38:460.38:471.15:048:24Full Moon15Tue
16Wed2:347.93:066.49:300.29:311.15:048:24Waning Gibbous16Wed
17Thu3:198.03:536.510:160.210:181.15:058:25Waning Gibbous17Thu
18Fri4:088.04:436.611:040.111:111.05:058:25Waning Gibbous18Fri
19Sat4:597.95:366.811:540.15:058:25Third Quarter19Sat
20Sun5:537.86:307.012:070.912:450.15:058:26Third Quarter20Sun
21Mon6:497.67:257.31:060.81:380.15:058:26Third Quarter21Mon
22Tue7:467.38:207.62:060.62:320.25:068:26Third Quarter22Tue
23Wed8:457.19:177.83:060.43:260.25:068:26Waning Crescent23Wed
24Thu9:456.910:138.14:050.14:200.35:068:26Waning Crescent24Thu
25Fri10:436.711:068.35:02-0.15:120.35:078:26Waning Crescent25Fri
26Sat11:386.611:588.45:56-0.36:040.45:078:26New Moon26Sat
27Sun12:326.56:50-0.36:560.45:078:26New Moon27Sun
28Mon12:508.41:236.57:41-0.47:470.55:088:26New Moon28Mon
29Tue1:398.32:126.48:31-0.38:370.65:088:26New Moon29Tue
30Wed2:278.12:596.49:19-0.29:250.75:098:26Waxing Crescent30Wed
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 8:33 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 72% 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 Waning Gibbous (72% 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