Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 36m at 9:03 am (-0.6 ft)
Next high tide : 2:47 pm (7.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:097.44:426.111:080.611:151.55:088:15Waxing Crescent1Mon
2Tue4:577.35:316.111:560.75:078:16Waxing Crescent2Tue
3Wed5:477.16:226.212:061.512:450.85:078:16First Quarter3Wed
4Thu6:387.07:126.412:591.51:340.95:068:17First Quarter4Thu
5Fri7:306.88:046.61:531.42:230.95:068:18First Quarter5Fri
6Sat8:236.78:556.92:491.33:130.95:068:18First Quarter6Sat
7Sun9:186.69:477.23:441.04:020.95:058:19Waxing Gibbous7Sun
8Mon10:126.610:377.64:360.74:490.85:058:20Waxing Gibbous8Mon
9Tue11:056.611:268.05:280.45:370.75:058:20Waxing Gibbous9Tue
10Wed11:576.76:190.06:250.75:058:21Full Moon10Wed
11Thu12:168.312:496.77:10-0.37:150.65:048:22Full Moon11Thu
12Fri1:068.61:416.88:01-0.58:050.45:048:22Full Moon12Fri
13Sat1:588.82:336.88:52-0.68:570.45:048:23Waning Gibbous13Sat
14Sun2:508.83:256.99:44-0.69:500.35:048:23Waning Gibbous14Sun
15Mon3:438.74:196.910:36-0.610:470.45:048:23Waning Gibbous15Mon
16Tue4:378.45:157.011:30-0.411:450.45:048:24Waning Gibbous16Tue
17Wed5:348.06:117.012:24-0.35:048:24Third Quarter17Wed
18Thu6:307.67:077.112:440.51:17-0.15:048:25Third Quarter18Thu
19Fri7:277.28:027.21:430.52:100.15:048:25Third Quarter19Fri
20Sat8:246.78:587.32:420.53:030.45:058:25Waning Crescent20Sat
21Sun9:226.49:517.43:400.53:550.65:058:25Waning Crescent21Sun
22Mon10:176.210:407.44:340.54:450.75:058:26Waning Crescent22Mon
23Tue11:086.011:267.45:250.55:330.95:058:26Waning Crescent23Tue
24Wed11:545.96:140.46:201.05:068:26New Moon24Wed
25Thu12:107.412:395.97:010.57:051.15:068:26New Moon25Thu
26Fri12:537.41:225.97:470.57:501.25:068:26New Moon26Fri
27Sat1:357.52:046.08:300.58:331.25:078:26New Moon27Sat
28Sun2:187.52:466.09:130.59:161.25:078:26Waxing Crescent28Sun
29Mon3:007.53:296.19:560.510:001.35:088:26Waxing Crescent29Mon
30Tue3:437.44:146.210:390.610:461.35:088:26Waxing Crescent30Tue
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 11:55 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 7% 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 Crescent (7% 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