Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide (tomorrow) : in 2h 11m at 12:44 am (1.0 ft)
Next high tide (tomorrow) : 6:25 am (7.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Sep 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:186.611:408.25:35-0.15:460.36:097:18Waning Crescent1Fri
2Sat12:126.96:28-0.36:410.06:107:16New Moon2Sat
3Sun12:348.21:037.27:18-0.47:34-0.26:117:14New Moon3Sun
4Mon1:258.11:527.58:05-0.48:24-0.36:127:13New Moon4Mon
5Tue2:147.92:387.78:51-0.39:14-0.36:137:11Waxing Crescent5Tue
6Wed3:017.73:237.89:36-0.110:03-0.26:147:09Waxing Crescent6Wed
7Thu3:477.34:087.710:220.210:530.06:157:07Waxing Crescent7Thu
8Fri4:346.94:557.611:090.511:440.36:167:06Waxing Crescent8Fri
9Sat5:236.55:447.311:580.86:177:04First Quarter9Sat
10Sun6:146.26:357.112:370.612:501.16:187:02First Quarter10Sun
11Mon7:065.97:286.91:310.81:441.36:197:00First Quarter11Mon
12Tue8:015.78:246.82:271.02:401.46:216:59First Quarter12Tue
13Wed8:585.69:216.83:231.03:351.46:226:57Waxing Gibbous13Wed
14Thu9:545.710:156.84:161.04:281.36:236:55Waxing Gibbous14Thu
15Fri10:455.911:056.95:060.95:181.16:246:53Waxing Gibbous15Fri
16Sat11:316.111:507.15:520.76:050.96:256:51Waxing Gibbous16Sat
17Sun12:146.46:360.66:510.86:266:50Full Moon17Sun
18Mon12:347.212:566.87:180.67:350.66:276:48Full Moon18Mon
19Tue1:167.21:377.17:580.58:170.46:286:46Full Moon19Tue
20Wed1:587.22:187.48:370.59:000.36:296:44Waning Gibbous20Wed
21Thu2:417.23:007.69:150.69:430.26:306:42Waning Gibbous21Thu
22Fri3:257.13:447.89:550.710:310.26:316:41Waning Gibbous22Fri
23Sat4:126.94:327.910:400.811:230.26:326:39Waning Gibbous23Sat
24Sun5:046.75:257.911:310.96:346:37Third Quarter24Sun
25Mon5:596.56:217.812:200.312:291.06:356:35Third Quarter25Mon
26Tue6:576.37:207.71:190.31:301.16:366:34Third Quarter26Tue
27Wed7:586.38:237.72:210.32:341.06:376:32Third Quarter27Wed
28Thu9:026.39:267.73:210.23:360.86:386:30Waning Crescent28Thu
29Fri10:036.610:277.74:190.14:350.56:396:28Waning Crescent29Fri
30Sat11:006.911:237.75:13-0.15:310.26:406:26Waning Crescent30Sat
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 3:34 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 transitional phase. Tonight's moon is 62% 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 Third Quarter (62% 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