Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 6:31 am (0.6 ft)
Next high tide : in 1h 22m at 11:39 pm (7.2 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Apr 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:476.76:020.66:260.56:267:09New Moon1Fri
2Sat12:096.612:306.76:480.57:090.66:247:10New Moon2Sat
3Sun12:496.91:126.77:330.47:500.66:227:11New Moon3Sun
4Mon1:297.11:526.78:150.38:310.76:207:13New Moon4Mon
5Tue2:097.32:336.78:570.39:100.76:197:14Waxing Crescent5Tue
6Wed2:497.43:156.79:390.39:490.96:177:15Waxing Crescent6Wed
7Thu3:317.53:586.610:230.410:311.06:157:16Waxing Crescent7Thu
8Fri4:157.54:456.511:090.411:171.16:147:17Waxing Crescent8Fri
9Sat5:037.55:366.411:590.56:127:18First Quarter9Sat
10Sun5:557.56:296.412:081.112:520.56:107:19First Quarter10Sun
11Mon6:497.57:246.41:031.11:470.56:087:21First Quarter11Mon
12Tue7:467.48:216.62:021.02:440.46:077:22First Quarter12Tue
13Wed8:457.59:206.93:020.83:400.26:057:23Waxing Gibbous13Wed
14Thu9:447.610:167.34:010.54:330.06:037:24Waxing Gibbous14Thu
15Fri10:427.611:107.84:570.05:24-0.26:027:25Waxing Gibbous15Fri
16Sat11:367.75:51-0.46:14-0.36:007:26Full Moon16Sat
17Sun12:018.212:307.76:45-0.77:04-0.45:597:27Full Moon17Sun
18Mon12:528.51:227.67:37-0.97:53-0.45:577:29Full Moon18Mon
19Tue1:428.72:137.58:29-1.08:42-0.35:557:30Full Moon19Tue
20Wed2:318.73:027.39:19-0.99:32-0.15:547:31Waning Gibbous20Wed
21Thu3:218.63:527.010:10-0.710:230.25:527:32Waning Gibbous21Thu
22Fri4:118.34:436.811:02-0.411:160.45:517:33Waning Gibbous22Fri
23Sat5:037.95:376.511:56-0.15:497:34Third Quarter23Sat
24Sun5:567.66:306.412:110.712:490.25:487:36Third Quarter24Sun
25Mon6:517.27:256.31:060.91:430.45:467:37Third Quarter25Mon
26Tue7:456.98:206.32:031.02:370.65:457:38Third Quarter26Tue
27Wed8:416.79:146.42:591.03:300.75:437:39Waning Crescent27Wed
28Thu9:366.510:066.53:540.94:200.75:427:40Waning Crescent28Thu
29Fri10:286.510:526.84:450.85:070.85:407:41Waning Crescent29Fri
30Sat11:156.411:357.05:340.75:520.85:397:42Waning Crescent30Sat
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 3:05 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 95% 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 Waxing Gibbous (95% 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