Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 3h 04m at 7:17 am (0.6 ft)
Next high tide : 12:51 pm (5.9 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 - Jan 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:486.63:057.39:260.59:570.07:144:20Waning Gibbous1Sun
2Mon3:346.63:517.110:140.610:440.27:144:21Waning Gibbous2Mon
3Tue4:216.64:396.811:050.711:310.47:144:22Third Quarter3Tue
4Wed5:106.65:296.611:560.87:144:23Third Quarter4Wed
5Thu5:596.76:206.312:200.512:490.97:144:24Third Quarter5Thu
6Fri6:506.77:136.11:100.71:440.87:144:25Third Quarter6Fri
7Sat7:426.88:076.02:020.72:380.77:144:26Waning Crescent7Sat
8Sun8:357.09:016.02:530.83:300.57:144:27Waning Crescent8Sun
9Mon9:257.29:526.13:430.74:200.37:134:28Waning Crescent9Mon
10Tue10:147.510:426.34:310.65:090.17:134:29Waning Crescent10Tue
11Wed11:037.811:316.55:180.55:57-0.27:134:30New Moon11Wed
12Thu11:518.06:060.36:44-0.47:124:31New Moon12Thu
13Fri12:206.812:398.26:530.17:31-0.77:124:32New Moon13Fri
14Sat1:087.01:278.47:41-0.18:17-0.87:124:33Waxing Crescent14Sat
15Sun1:577.32:168.48:30-0.39:04-0.97:114:35Waxing Crescent15Sun
16Mon2:467.53:078.29:22-0.39:54-0.87:114:36Waxing Crescent16Mon
17Tue3:387.64:007.910:17-0.310:46-0.77:104:37Waxing Crescent17Tue
18Wed4:327.74:557.511:14-0.311:39-0.57:094:38First Quarter18Wed
19Thu5:277.75:517.112:12-0.27:094:39First Quarter19Thu
20Fri6:237.76:496.712:34-0.31:12-0.27:084:41First Quarter20Fri
21Sat7:207.67:496.41:31-0.12:11-0.17:074:42Waxing Gibbous21Sat
22Sun8:197.68:506.22:280.03:09-0.17:074:43Waxing Gibbous22Sun
23Mon9:177.59:476.23:240.14:04-0.27:064:45Waxing Gibbous23Mon
24Tue10:107.510:396.24:170.24:56-0.27:054:46Waxing Gibbous24Tue
25Wed11:007.511:286.25:080.25:46-0.27:044:47Full Moon25Wed
26Thu11:467.55:570.26:33-0.27:034:48Full Moon26Thu
27Fri12:136.312:307.46:440.27:17-0.27:034:50Full Moon27Fri
28Sat12:566.41:127.47:300.28:00-0.17:024:51Full Moon28Sat
29Sun1:376.51:547.38:140.38:420.07:014:52Waning Gibbous29Sun
30Mon2:196.72:367.28:580.49:250.17:004:54Waning Gibbous30Mon
31Tue3:016.83:207.09:440.510:090.26:594:55Waning Gibbous31Tue
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 10:04 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 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