Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 33m at 5:22 pm (1.2 ft)
Next high tide : 11:11 pm (7.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:147.16:476.612:381.11:080.65:088:15Third Quarter1Sun
2Mon7:056.87:376.71:311.11:580.75:078:15Third Quarter2Mon
3Tue7:576.68:296.82:251.12:490.85:078:16Third Quarter3Tue
4Wed8:516.49:206.93:191.03:390.95:068:17Waning Crescent4Wed
5Thu9:446.310:107.14:110.94:280.95:068:18Waning Crescent5Thu
6Fri10:356.310:577.45:020.75:140.95:068:18Waning Crescent6Fri
7Sat11:236.411:437.65:500.56:000.95:058:19Waning Crescent7Sat
8Sun12:116.56:370.36:460.85:058:20New Moon8Sun
9Mon12:297.912:586.67:240.17:310.75:058:20New Moon9Mon
10Tue1:168.11:466.88:11-0.18:170.65:058:21New Moon10Tue
11Wed2:028.32:336.98:56-0.29:030.55:048:21Waxing Crescent11Wed
12Thu2:508.43:227.19:43-0.39:520.45:048:22Waxing Crescent12Thu
13Fri3:398.44:137.210:32-0.410:450.45:048:22Waxing Crescent13Fri
14Sat4:318.35:067.411:23-0.411:420.35:048:23Waxing Crescent14Sat
15Sun5:268.16:017.512:16-0.35:048:23First Quarter15Sun
16Mon6:227.86:567.712:400.31:09-0.25:048:24First Quarter16Mon
17Tue7:187.57:527.81:390.22:04-0.15:048:24First Quarter17Tue
18Wed8:177.28:507.92:380.23:000.05:048:25Waxing Gibbous18Wed
19Thu9:176.99:478.03:380.13:550.15:048:25Waxing Gibbous19Thu
20Fri10:156.710:418.04:340.04:480.25:058:25Waxing Gibbous20Fri
21Sat11:106.611:328.15:28-0.15:390.35:058:25Waxing Gibbous21Sat
22Sun12:026.56:20-0.16:300.45:058:26Full Moon22Sun
23Mon12:218.012:516.57:10-0.17:190.55:058:26Full Moon23Mon
24Tue1:088.01:386.57:58-0.18:070.55:068:26Full Moon24Tue
25Wed1:537.92:226.58:440.08:530.65:068:26Waning Gibbous25Wed
26Thu2:377.83:056.59:280.19:390.75:068:26Waning Gibbous26Thu
27Fri3:207.63:496.610:130.210:260.85:078:26Waning Gibbous27Fri
28Sat4:057.54:356.710:580.311:140.95:078:26Waning Gibbous28Sat
29Sun4:527.35:226.711:440.55:078:26Third Quarter29Sun
30Mon5:407.06:116.812:051.012:320.65:088:26Third Quarter30Mon
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 8:16 pm — 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 92% 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 (92% 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