Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 3h 39m at 11:59 am (-0.2 ft)
Next high tide : 5:47 pm (7.0 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Nov 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:436.57:047.81:02-0.11:170.87:185:36First Quarter1Tue
2Wed7:446.58:067.52:010.02:190.87:195:35First Quarter2Wed
3Thu8:466.69:087.42:590.13:210.67:205:34Waxing Gibbous3Thu
4Fri9:466.910:097.23:550.04:190.47:225:32Waxing Gibbous4Fri
5Sat10:417.111:047.14:480.05:140.27:235:31Waxing Gibbous5Sat
6Sun10:307.410:546.94:370.15:060.06:244:30Full Moon6Sun
7Mon11:157.611:406.85:240.25:55-0.16:254:29Full Moon7Mon
8Tue11:587.76:090.36:42-0.16:274:28Full Moon8Tue
9Wed12:246.712:397.76:530.57:27-0.16:284:27Full Moon9Wed
10Thu1:076.51:207.77:350.78:100.16:294:25Waning Gibbous10Thu
11Fri1:486.42:017.68:180.98:550.26:314:24Waning Gibbous11Fri
12Sat2:316.32:447.59:021.19:410.46:324:23Waning Gibbous12Sat
13Sun3:166.13:307.39:481.310:290.66:334:22Waning Gibbous13Sun
14Mon4:046.04:197.110:391.411:200.76:344:21Third Quarter14Mon
15Tue4:556.05:117.011:321.56:364:21Third Quarter15Tue
16Wed5:476.06:046.812:110.812:261.56:374:20Third Quarter16Wed
17Thu6:396.16:586.71:030.81:221.46:384:19Third Quarter17Thu
18Fri7:336.27:526.71:550.82:171.36:394:18Waning Crescent18Fri
19Sat8:266.58:466.72:460.73:101.06:414:17Waning Crescent19Sat
20Sun9:166.99:386.73:330.64:000.76:424:16Waning Crescent20Sun
21Mon10:037.310:276.84:180.54:490.36:434:16Waning Crescent21Mon
22Tue10:497.711:166.95:030.55:370.06:444:15New Moon22Tue
23Wed11:358.15:480.46:26-0.36:454:14New Moon23Wed
24Thu12:056.912:238.46:340.37:15-0.66:474:14New Moon24Thu
25Fri12:556.91:118.67:200.38:04-0.76:484:13Waxing Crescent25Fri
26Sat1:456.92:018.68:090.38:55-0.76:494:13Waxing Crescent26Sat
27Sun2:366.82:538.59:010.49:49-0.66:504:12Waxing Crescent27Sun
28Mon3:306.73:488.39:580.510:44-0.46:514:12Waxing Crescent28Mon
29Tue4:276.74:468.010:580.511:41-0.36:524:11First Quarter29Tue
30Wed5:256.75:457.611:580.66:534:11First Quarter30Wed
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 2:53 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 37% 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 First Quarter (37% 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