Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 1:29 pm (0.7 ft)
Next high tide : in 2h 06m at 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 - Aug 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:357.08:057.82:000.52:190.55:358:04First Quarter1Mon
2Tue8:336.99:027.92:590.33:160.45:368:03Waxing Gibbous2Tue
3Wed9:336.910:008.23:570.14:120.35:378:02Waxing Gibbous3Wed
4Thu10:316.910:568.44:53-0.25:070.15:388:01Waxing Gibbous4Thu
5Fri11:287.111:518.65:48-0.56:01-0.15:398:00Full Moon5Fri
6Sat12:227.26:41-0.76:55-0.35:407:58Full Moon6Sat
7Sun12:458.71:157.47:33-0.87:48-0.45:417:57Full Moon7Sun
8Mon1:378.62:067.58:23-0.98:39-0.45:427:56Full Moon8Mon
9Tue2:278.52:557.69:12-0.89:30-0.45:437:54Waning Gibbous9Tue
10Wed3:168.23:447.610:00-0.610:21-0.25:447:53Waning Gibbous10Wed
11Thu4:057.94:337.610:49-0.411:140.05:467:52Waning Gibbous11Thu
12Fri4:557.55:237.511:38-0.15:477:50Third Quarter12Fri
13Sat5:467.16:137.312:060.212:290.25:487:49Third Quarter13Sat
14Sun6:376.77:047.21:000.41:200.55:497:47Third Quarter14Sun
15Mon7:296.47:567.11:540.62:120.75:507:46Third Quarter15Mon
16Tue8:236.28:507.02:490.73:060.95:517:44Waning Crescent16Tue
17Wed9:186.09:437.03:430.73:590.95:527:43Waning Crescent17Wed
18Thu10:116.010:347.14:350.74:490.95:537:41Waning Crescent18Thu
19Fri11:006.111:217.25:240.65:370.85:547:40Waning Crescent19Fri
20Sat11:476.36:110.56:240.85:557:38New Moon20Sat
21Sun12:067.312:316.46:570.47:100.75:567:37New Moon21Sun
22Mon12:507.41:156.77:410.37:540.65:577:35New Moon22Mon
23Tue1:337.51:576.98:230.38:370.55:597:33New Moon23Tue
24Wed2:167.62:407.19:040.29:200.46:007:32Waxing Crescent24Wed
25Thu2:597.63:237.49:450.210:040.46:017:30Waxing Crescent25Thu
26Fri3:447.64:097.510:280.310:510.36:027:28Waxing Crescent26Fri
27Sat4:327.54:577.711:140.311:430.36:037:27Waxing Crescent27Sat
28Sun5:237.35:497.812:040.46:047:25First Quarter28Sun
29Mon6:177.16:437.812:390.312:570.56:057:23First Quarter29Mon
30Tue7:137.07:407.91:360.21:540.56:067:22First Quarter30Tue
31Wed8:126.88:397.92:360.12:530.56:077:20Waxing Gibbous31Wed
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 10:11 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