Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 10:08 am (0.5 ft)
Next high tide : in 1h 55m at 3:13 am (7.6 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Apr 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:438.12:098.18:23-0.88:46-0.66:247:10Full Moon1Sat
2Sun2:328.42:598.09:14-1.09:34-0.56:227:11Waning Gibbous2Sun
3Mon3:218.53:507.710:06-0.910:24-0.36:207:13Waning Gibbous3Mon
4Tue4:128.54:437.411:00-0.811:17-0.16:187:14Waning Gibbous4Tue
5Wed5:058.35:387.011:56-0.56:177:15Third Quarter5Wed
6Thu6:008.06:346.712:120.212:52-0.36:157:16Third Quarter6Thu
7Fri6:567.77:326.41:090.51:500.06:137:17Third Quarter7Fri
8Sat7:547.48:316.22:080.72:480.26:127:18Third Quarter8Sat
9Sun8:547.19:316.23:060.73:440.36:107:20Waning Crescent9Sun
10Mon9:537.010:276.34:030.74:370.36:087:21Waning Crescent10Mon
11Tue10:476.911:156.54:570.75:260.46:077:22Waning Crescent11Tue
12Wed11:356.811:596.75:470.66:130.46:057:23Waning Crescent12Wed
13Thu12:196.86:340.56:570.46:037:24New Moon13Thu
14Fri12:406.81:016.87:200.47:400.56:027:25New Moon14Fri
15Sat1:207.01:426.88:030.38:210.66:007:26New Moon15Sat
16Sun1:597.22:226.88:450.39:010.75:587:28New Moon16Sun
17Mon2:387.33:036.89:270.39:410.85:577:29Waxing Crescent17Mon
18Tue3:197.43:466.710:100.410:221.05:557:30Waxing Crescent18Tue
19Wed4:027.44:316.610:560.511:061.25:547:31Waxing Crescent19Wed
20Thu4:487.45:206.511:440.511:551.35:527:32Waxing Crescent20Thu
21Fri5:377.46:116.412:350.65:517:33First Quarter21Fri
22Sat6:297.37:046.412:471.31:280.65:497:35First Quarter22Sat
23Sun7:237.37:596.41:421.32:230.65:487:36First Quarter23Sun
24Mon8:207.38:566.62:401.23:180.45:467:37First Quarter24Mon
25Tue9:187.59:527.03:370.94:120.25:457:38Waxing Gibbous25Tue
26Wed10:157.610:467.44:330.55:030.05:437:39Waxing Gibbous26Wed
27Thu11:107.811:387.95:270.15:53-0.25:427:40Waxing Gibbous27Thu
28Fri12:037.96:19-0.36:42-0.45:407:41Full Moon28Fri
29Sat12:298.312:567.97:12-0.77:32-0.45:397:43Full Moon29Sat
30Sun1:198.61:487.88:04-0.98:21-0.45:377:44Full Moon30Sun
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 6:40 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 88% 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 (88% 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