Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 4h 19m at 3:27 pm (0.8 ft)
Next high tide : 9:20 pm (7.9 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 - Jan 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:257.32:448.48:56-0.49:31-0.97:144:19Waning Gibbous1Sun
2Mon3:167.33:367.99:50-0.310:22-0.77:144:20Waning Gibbous2Mon
3Tue4:087.34:297.510:45-0.111:13-0.47:144:21Third Quarter3Tue
4Wed5:017.35:227.011:410.17:144:22Third Quarter4Wed
5Thu5:547.26:156.512:05-0.112:370.37:144:23Third Quarter5Thu
6Fri6:477.17:106.212:570.21:330.47:144:24Third Quarter6Fri
7Sat7:407.08:055.91:500.42:290.57:144:25Waning Crescent7Sat
8Sun8:347.09:005.72:430.63:230.57:144:26Waning Crescent8Sun
9Mon9:257.09:515.73:340.74:130.47:144:27Waning Crescent9Mon
10Tue10:127.010:385.74:230.75:020.47:144:28Waning Crescent10Tue
11Wed10:577.111:235.85:100.75:480.37:134:29New Moon11Wed
12Thu11:417.25:560.76:330.27:134:30New Moon12Thu
13Fri12:076.012:237.36:410.77:160.27:134:31New Moon13Fri
14Sat12:496.11:057.47:240.77:570.17:124:33New Moon14Sat
15Sun1:316.31:477.48:060.68:380.17:124:34Waxing Crescent15Sun
16Mon2:136.52:297.48:490.69:200.17:114:35Waxing Crescent16Mon
17Tue2:566.73:147.39:330.610:020.27:114:36Waxing Crescent17Tue
18Wed3:426.94:017.110:220.610:470.37:104:37Waxing Crescent18Wed
19Thu4:317.04:526.911:130.611:350.47:104:39First Quarter19Thu
20Fri5:217.25:446.712:080.57:094:40First Quarter20Fri
21Sat6:147.36:406.512:260.41:060.47:084:41First Quarter21Sat
22Sun7:097.57:396.41:210.52:050.27:084:42First Quarter22Sun
23Mon8:077.78:396.42:190.43:04-0.17:074:44Waxing Gibbous23Mon
24Tue9:067.99:386.53:160.34:01-0.37:064:45Waxing Gibbous24Tue
25Wed10:038.210:356.74:120.04:55-0.67:054:46Waxing Gibbous25Wed
26Thu10:588.411:306.95:06-0.25:48-0.97:054:47Full Moon26Thu
27Fri11:528.56:00-0.46:40-1.07:044:49Full Moon27Fri
28Sat12:237.112:448.46:53-0.67:29-1.17:034:50Full Moon28Sat
29Sun1:137.31:348.37:45-0.68:17-1.07:024:51Waning Gibbous29Sun
30Mon2:027.52:228.08:35-0.69:05-0.87:014:53Waning Gibbous30Mon
31Tue2:507.53:117.69:27-0.49:53-0.67:004:54Waning Gibbous31Tue
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 6:23 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