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 2h 06m at 8:04 pm (1.2 ft)
Next high tide (tomorrow) : 1:48 am (7.5 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 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:008.64:347.210:51-0.711:070.25:078:16Waxing Crescent1Sat
2Sun4:538.25:287.111:44-0.45:078:17First Quarter2Sun
3Mon5:467.86:217.012:030.412:36-0.25:068:17First Quarter3Mon
4Tue6:407.47:157.012:590.51:290.15:068:18First Quarter4Tue
5Wed7:347.08:086.91:540.72:210.35:068:19First Quarter5Wed
6Thu8:296.79:027.02:500.73:130.55:058:19Waxing Gibbous6Thu
7Fri9:236.59:537.03:450.74:040.65:058:20Waxing Gibbous7Fri
8Sat10:156.310:407.24:370.64:530.75:058:21Waxing Gibbous8Sat
9Sun11:046.311:257.35:260.65:390.85:058:21Waxing Gibbous9Sun
10Mon11:496.36:130.56:250.85:058:22Full Moon10Mon
11Tue12:087.412:346.37:000.47:100.95:048:22Full Moon11Tue
12Wed12:517.51:176.47:440.47:540.95:048:23Full Moon12Wed
13Thu1:337.62:006.58:280.38:360.95:048:23Full Moon13Thu
14Fri2:167.72:436.69:110.39:191.05:048:24Waning Gibbous14Fri
15Sat2:587.83:276.79:530.310:021.05:048:24Waning Gibbous15Sat
16Sun3:427.84:136.810:380.210:481.05:048:24Waning Gibbous16Sun
17Mon4:297.75:026.911:240.211:391.05:058:25Waning Gibbous17Mon
18Tue5:197.75:537.112:120.25:058:25Third Quarter18Tue
19Wed6:117.56:457.312:320.91:020.25:058:25Third Quarter19Wed
20Thu7:057.47:387.51:280.81:540.25:058:26Third Quarter20Thu
21Fri8:017.38:347.82:260.62:480.25:058:26Third Quarter21Fri
22Sat9:007.29:308.03:240.33:430.15:068:26Waning Crescent22Sat
23Sun9:587.110:268.34:210.04:370.15:068:26Waning Crescent23Sun
24Mon10:557.111:208.65:17-0.35:300.05:068:26Waning Crescent24Mon
25Tue11:517.26:11-0.66:23-0.15:078:26New Moon25Tue
26Wed12:148.712:457.27:04-0.87:16-0.25:078:26New Moon26Wed
27Thu1:068.81:387.37:57-0.98:09-0.25:078:26New Moon27Thu
28Fri1:588.82:297.38:47-0.99:00-0.15:088:26Waxing Crescent28Fri
29Sat2:488.63:197.39:36-0.89:510.05:088:26Waxing Crescent29Sat
30Sun3:378.34:097.210:26-0.610:430.25:098:26Waxing Crescent30Sun
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 10:56 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 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