Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide (tomorrow) : in 6h 33m at 6:31 am (0.6 ft)
Next high tide (tomorrow) : 12:07 pm (5.8 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Sep 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:317.23:537.510:110.610:380.46:097:18Waxing Crescent1Wed
2Thu4:177.14:397.610:540.711:280.56:107:16Waxing Crescent2Thu
3Fri5:066.95:307.711:420.86:117:14First Quarter3Fri
4Sat5:596.86:237.712:220.512:350.86:127:12First Quarter4Sat
5Sun6:546.67:197.71:180.41:320.96:137:11First Quarter5Sun
6Mon7:526.68:197.82:170.42:320.86:147:09First Quarter6Mon
7Tue8:536.69:197.93:170.23:320.66:157:07Waxing Gibbous7Tue
8Wed9:536.810:198.04:140.04:300.36:167:05Waxing Gibbous8Wed
9Thu10:517.111:168.15:09-0.25:26-0.16:177:04Waxing Gibbous9Thu
10Fri11:457.46:01-0.46:20-0.36:197:02Full Moon10Fri
11Sat12:108.212:377.86:51-0.57:13-0.66:207:00Full Moon11Sat
12Sun1:028.11:268.07:40-0.68:04-0.76:216:58Full Moon12Sun
13Mon1:518.02:148.18:28-0.58:54-0.66:226:57Waning Gibbous13Mon
14Tue2:397.83:008.29:14-0.39:43-0.56:236:55Waning Gibbous14Tue
15Wed3:267.43:478.010:010.010:33-0.36:246:53Waning Gibbous15Wed
16Thu4:147.14:357.810:500.311:250.06:256:51Waning Gibbous16Thu
17Fri5:036.85:257.611:400.66:266:49Third Quarter17Fri
18Sat5:546.46:167.312:170.312:330.86:276:48Third Quarter18Sat
19Sun6:466.27:097.11:110.61:271.06:286:46Third Quarter19Sun
20Mon7:406.08:046.92:050.72:221.16:296:44Third Quarter20Mon
21Tue8:356.09:006.83:000.83:171.16:306:42Waning Crescent21Tue
22Wed9:306.19:546.83:530.84:101.06:316:40Waning Crescent22Wed
23Thu10:226.210:446.94:430.75:000.96:336:39Waning Crescent23Thu
24Fri11:096.511:306.95:300.75:480.76:346:37Waning Crescent24Fri
25Sat11:536.76:140.66:340.66:356:35New Moon25Sat
26Sun12:147.012:357.06:570.67:190.46:366:33New Moon26Sun
27Mon12:577.11:177.37:390.58:020.36:376:31New Moon27Mon
28Tue1:407.11:597.68:200.58:450.26:386:30New Moon28Tue
29Wed2:237.22:417.89:000.69:290.16:396:28Waxing Crescent29Wed
30Thu3:077.13:257.99:410.610:150.16:406:26Waxing Crescent30Thu
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 9:19 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 spring phase. Tonight's moon is 95% 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 maximum.

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 (95% illuminated). This places Merrimacport, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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