Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 1h 25m at 3:25 pm (0.8 ft)
Next high tide : 9:17 pm (7.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Sep 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:155.78:396.82:421.02:551.46:097:17Waxing Gibbous1Thu
2Fri9:125.69:366.83:381.03:491.46:107:16Waxing Gibbous2Fri
3Sat10:075.710:296.94:310.94:411.36:117:14Waxing Gibbous3Sat
4Sun10:575.911:177.05:200.85:301.16:127:12Waxing Gibbous4Sun
5Mon11:436.16:060.76:170.96:137:10Full Moon5Mon
6Tue12:027.212:276.46:510.67:020.86:147:09Full Moon6Tue
7Wed12:467.31:096.77:330.57:460.66:167:07Full Moon7Wed
8Thu1:297.41:517.18:130.48:290.46:177:05Full Moon8Thu
9Fri2:117.42:327.48:510.49:120.36:187:03Waning Gibbous9Fri
10Sat2:547.43:157.69:300.49:570.26:197:02Waning Gibbous10Sat
11Sun3:397.24:007.810:120.510:460.26:207:00Waning Gibbous11Sun
12Mon4:287.04:497.910:570.711:400.26:216:58Waning Gibbous12Mon
13Tue5:216.85:437.911:500.86:226:56Third Quarter13Tue
14Wed6:166.56:407.812:370.312:470.96:236:54Third Quarter14Wed
15Thu7:156.37:397.81:380.31:491.06:246:53Third Quarter15Thu
16Fri8:176.28:427.72:390.32:520.96:256:51Waning Crescent16Fri
17Sat9:206.39:457.83:400.23:540.76:266:49Waning Crescent17Sat
18Sun10:216.510:457.84:370.14:520.46:276:47Waning Crescent18Sun
19Mon11:176.811:407.85:30-0.15:470.26:286:45Waning Crescent19Mon
20Tue12:097.16:21-0.26:400.06:306:44New Moon20Tue
21Wed12:317.712:577.47:09-0.27:30-0.26:316:42New Moon21Wed
22Thu1:207.61:427.67:54-0.18:19-0.26:326:40New Moon22Thu
23Fri2:057.42:257.78:380.19:05-0.26:336:38Waxing Crescent23Fri
24Sat2:497.13:077.79:210.39:510.06:346:36Waxing Crescent24Sat
25Sun3:326.93:507.610:050.610:390.26:356:35Waxing Crescent25Sun
26Mon4:176.64:357.410:510.911:280.56:366:33Waxing Crescent26Mon
27Tue5:056.35:237.211:401.26:376:31First Quarter27Tue
28Wed5:556.06:147.012:200.712:321.46:386:29First Quarter28Wed
29Thu6:475.97:086.91:130.91:261.56:396:28First Quarter29Thu
30Fri7:415.88:036.82:081.02:221.56:416:26First Quarter30Fri
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 6:21 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 76% 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 Waxing Gibbous (76% 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