Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 58m at 1:16 am (0.5 ft)
Next high tide : 6:54 am (6.7 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:40 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jan 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:457.36:000.56:360.17:144:20Full Moon1Sun
2Mon12:116.112:277.46:450.67:200.17:144:21Full Moon2Mon
3Tue12:546.21:097.47:280.68:020.17:144:22Full Moon3Tue
4Wed1:356.31:507.48:110.78:440.17:144:23Waning Gibbous4Wed
5Thu2:186.32:337.48:540.89:280.27:144:24Waning Gibbous5Thu
6Fri3:026.43:177.39:390.810:120.27:144:25Waning Gibbous6Fri
7Sat3:486.54:047.210:270.910:580.37:144:26Waning Gibbous7Sat
8Sun4:366.64:547.011:170.911:460.47:144:27Third Quarter8Sun
9Mon5:256.75:456.812:100.97:144:28Third Quarter9Mon
10Tue6:166.96:386.712:350.51:050.87:134:29Third Quarter10Tue
11Wed7:097.17:346.61:270.52:020.67:134:30Third Quarter11Wed
12Thu8:047.38:316.62:200.42:580.37:134:31Waning Crescent12Thu
13Fri8:597.79:286.63:130.33:53-0.17:124:32Waning Crescent13Fri
14Sat9:538.010:236.84:050.14:46-0.57:124:33Waning Crescent14Sat
15Sun10:468.311:186.94:57-0.15:39-0.87:114:35New Moon15Sun
16Mon11:398.65:50-0.36:31-1.07:114:36New Moon16Mon
17Tue12:117.112:328.76:42-0.57:22-1.27:104:37New Moon17Tue
18Wed1:037.31:248.77:34-0.68:12-1.37:104:38Waxing Crescent18Wed
19Thu1:557.42:158.68:26-0.69:02-1.27:094:39Waxing Crescent19Thu
20Fri2:467.53:068.39:19-0.59:53-1.07:094:41Waxing Crescent20Fri
21Sat3:387.53:597.910:14-0.410:44-0.77:084:42Waxing Crescent21Sat
22Sun4:317.44:527.411:10-0.211:36-0.47:074:43First Quarter22Sun
23Mon5:247.35:466.912:060.07:064:45First Quarter23Mon
24Tue6:177.26:406.512:29-0.11:020.27:064:46First Quarter24Tue
25Wed7:117.17:366.11:220.11:590.37:054:47Waxing Gibbous25Wed
26Thu8:067.08:325.92:160.42:540.37:044:48Waxing Gibbous26Thu
27Fri8:596.99:265.83:090.53:470.37:034:50Waxing Gibbous27Fri
28Sat9:497.010:155.83:590.64:360.37:024:51Waxing Gibbous28Sat
29Sun10:357.011:015.94:480.65:240.27:014:52Waxing Gibbous29Sun
30Mon11:207.111:456.05:350.66:100.27:004:54Full Moon30Mon
31Tue12:037.26:200.66:540.16:594:55Full Moon31Tue
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 4:05 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 neap phase. Tonight's moon is 44% 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 minimum.

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 Third Quarter (44% illuminated). This places Merrimacport, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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