Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 3:27 pm (0.8 ft)
Next high tide : in 2h 08m at 8:53 am (6.3 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:327.07:056.712:571.31:270.75:078:15Third Quarter1Fri
2Sat7:246.97:566.91:501.22:170.85:078:16Third Quarter2Sat
3Sun8:176.78:487.12:451.13:070.85:068:17Third Quarter3Sun
4Mon9:126.79:407.43:400.93:570.85:068:17Waning Crescent4Mon
5Tue10:066.710:317.74:320.64:460.75:068:18Waning Crescent5Tue
6Wed10:596.811:228.15:240.35:350.65:058:19Waning Crescent6Wed
7Thu11:516.96:15-0.16:240.45:058:19New Moon7Thu
8Fri12:128.412:437.07:06-0.47:140.35:058:20New Moon8Fri
9Sat1:038.71:357.17:56-0.68:050.15:058:21New Moon9Sat
10Sun1:548.92:277.38:47-0.88:560.05:048:21Waxing Crescent10Sun
11Mon2:468.93:197.39:37-0.89:490.05:048:22Waxing Crescent11Mon
12Tue3:388.84:127.410:29-0.810:440.05:048:22Waxing Crescent12Tue
13Wed4:318.55:077.411:22-0.611:420.15:048:23Waxing Crescent13Wed
14Thu5:278.16:027.512:15-0.55:048:23First Quarter14Thu
15Fri6:237.76:577.512:390.21:08-0.25:048:24First Quarter15Fri
16Sat7:197.27:537.51:370.32:020.05:048:24First Quarter16Sat
17Sun8:166.88:487.52:360.32:560.25:048:24Waxing Gibbous17Sun
18Mon9:136.59:437.53:330.43:490.45:048:25Waxing Gibbous18Mon
19Tue10:096.310:347.54:280.44:400.65:048:25Waxing Gibbous19Tue
20Wed11:006.211:217.55:190.35:290.75:058:25Waxing Gibbous20Wed
21Thu11:486.16:080.36:170.85:058:25Full Moon21Thu
22Fri12:057.512:336.16:550.37:030.95:058:26Full Moon22Fri
23Sat12:497.51:166.27:410.37:480.95:058:26Full Moon23Sat
24Sun1:317.51:596.28:250.38:320.95:068:26Full Moon24Sun
25Mon2:137.62:416.49:070.39:151.05:068:26Waning Gibbous25Mon
26Tue2:557.63:236.59:500.49:591.05:068:26Waning Gibbous26Tue
27Wed3:387.54:076.610:330.410:451.15:078:26Waning Gibbous27Wed
28Thu4:237.44:546.711:170.511:331.15:078:26Waning Gibbous28Thu
29Fri5:117.25:426.812:030.65:088:26Third Quarter29Fri
30Sat6:007.16:317.012:241.112:490.75:088:26Third Quarter30Sat
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 12:10 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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 Crescent (22% illuminated). This places Merrimacport, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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