Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 10:39 pm (1.4 ft)
Next high tide : in 2h 51m at 4:09 pm (6.2 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 - Jan 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:596.23:157.19:350.910:080.47:144:20Waxing Crescent1Sat
2Sun3:446.44:016.910:231.010:530.57:144:21Waxing Crescent2Sun
3Mon4:326.54:506.711:131.011:390.67:144:21First Quarter3Mon
4Tue5:206.65:396.412:061.07:144:22First Quarter4Tue
5Wed6:096.76:316.212:270.81:001.07:144:23First Quarter5Wed
6Thu7:006.87:256.01:160.91:550.87:144:24First Quarter6Thu
7Fri7:537.08:226.02:080.92:510.67:144:25Waxing Gibbous7Fri
8Sat8:477.39:176.03:000.93:440.47:144:26Waxing Gibbous8Sat
9Sun9:407.610:116.13:510.84:360.07:134:27Waxing Gibbous9Sun
10Mon10:327.911:046.34:420.65:28-0.37:134:28Full Moon10Mon
11Tue11:248.211:566.65:330.36:18-0.67:134:30Full Moon11Tue
12Wed12:158.56:240.17:08-0.87:134:31Full Moon12Wed
13Thu12:476.81:068.67:15-0.27:56-1.07:124:32Full Moon13Thu
14Fri1:387.11:578.58:07-0.38:44-1.07:124:33Waning Gibbous14Fri
15Sat2:287.32:488.39:00-0.49:34-0.97:114:34Waning Gibbous15Sat
16Sun3:207.53:417.99:55-0.410:24-0.77:114:35Waning Gibbous16Sun
17Mon4:127.64:357.410:51-0.311:16-0.47:104:37Third Quarter17Mon
18Tue5:067.65:306.911:49-0.17:104:38Third Quarter18Tue
19Wed6:007.56:256.412:09-0.112:470.07:094:39Third Quarter19Wed
20Thu6:567.47:236.01:030.21:460.27:084:40Waning Crescent20Thu
21Fri7:537.28:235.71:590.42:440.37:084:41Waning Crescent21Fri
22Sat8:507.19:215.62:550.63:390.37:074:43Waning Crescent22Sat
23Sun9:437.110:135.63:480.74:310.37:064:44Waning Crescent23Sun
24Mon10:327.111:015.64:390.75:200.37:064:45New Moon24Mon
25Tue11:187.111:455.85:270.76:070.37:054:47New Moon25Tue
26Wed12:027.16:140.76:510.27:044:48New Moon26Wed
27Thu12:285.912:437.26:590.67:330.27:034:49New Moon27Thu
28Fri1:086.11:247.27:420.68:130.27:024:51Waxing Crescent28Fri
29Sat1:486.32:057.18:240.68:530.37:014:52Waxing Crescent29Sat
30Sun2:296.52:467.09:070.69:340.47:004:53Waxing Crescent30Sun
31Mon3:126.73:306.89:520.710:160.56:594:54Waxing Crescent31Mon
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 7:24 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 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