Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 2h 53m at 7:40 am (-0.6 ft)
Next high tide : 1:21 pm (6.8 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:04 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Sep 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:257.36:41-0.66:59-0.36:087:19New Moon1Sat
2Sun12:488.21:167.47:31-0.67:50-0.46:097:17New Moon2Sun
3Mon1:388.12:037.68:19-0.58:39-0.36:107:15New Moon3Mon
4Tue2:257.92:487.69:05-0.49:27-0.26:117:14Waxing Crescent4Tue
5Wed3:107.73:337.69:51-0.210:15-0.16:127:12Waxing Crescent5Wed
6Thu3:567.44:197.510:370.111:050.16:147:10Waxing Crescent6Thu
7Fri4:437.15:067.411:250.411:550.46:157:08First Quarter7Fri
8Sat5:326.85:557.212:150.76:167:07First Quarter8Sat
9Sun6:226.56:467.112:470.61:060.96:177:05First Quarter9Sun
10Mon7:146.37:387.01:400.71:581.16:187:03First Quarter10Mon
11Tue8:076.18:326.92:350.82:531.16:197:01First Quarter11Tue
12Wed9:026.19:276.93:290.83:461.16:206:59Waxing Gibbous12Wed
13Thu9:566.210:197.04:210.74:371.06:216:58Waxing Gibbous13Thu
14Fri10:466.311:087.25:100.65:260.86:226:56Waxing Gibbous14Fri
15Sat11:336.611:547.35:570.56:130.76:236:54Waxing Gibbous15Sat
16Sun12:186.86:420.46:590.56:246:52Full Moon16Sun
17Mon12:397.51:027.17:260.27:440.36:256:50Full Moon17Mon
18Tue1:237.61:467.48:090.28:280.16:266:49Full Moon18Tue
19Wed2:087.72:307.78:500.19:130.06:286:47Waning Gibbous19Wed
20Thu2:537.73:157.99:330.19:59-0.16:296:45Waning Gibbous20Thu
21Fri3:407.64:038.110:180.210:50-0.16:306:43Waning Gibbous21Fri
22Sat4:317.54:548.111:080.311:44-0.16:316:41Waning Gibbous22Sat
23Sun5:247.35:488.112:020.46:326:40Third Quarter23Sun
24Mon6:207.16:458.012:41-0.112:590.56:336:38Third Quarter24Mon
25Tue7:186.97:447.91:400.01:590.56:346:36Third Quarter25Tue
26Wed8:196.88:457.82:40-0.12:590.46:356:34Waning Crescent26Wed
27Thu9:206.99:467.83:38-0.13:580.36:366:33Waning Crescent27Thu
28Fri10:207.010:447.84:34-0.24:550.16:376:31Waning Crescent28Fri
29Sat11:147.211:387.85:27-0.35:48-0.16:396:29Waning Crescent29Sat
30Sun12:057.46:18-0.36:40-0.26:406:27New 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 10:30 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 0% 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 New Moon (0% 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