Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 5:22 pm (1.2 ft)
Next high tide : in 23m at 10:51 am (5.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Oct 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:536.38:177.12:110.32:290.86:416:24Waning Crescent1Tue
2Wed8:526.39:157.03:070.53:270.86:436:23Waning Crescent2Wed
3Thu9:496.310:116.94:010.54:210.86:446:21Waning Crescent3Thu
4Fri10:396.511:006.84:510.55:120.76:456:19Waning Crescent4Fri
5Sat11:246.711:456.85:370.56:000.66:466:17Waning Crescent5Sat
6Sun12:056.96:220.66:460.56:476:16New Moon6Sun
7Mon12:276.812:467.17:050.67:300.46:486:14New Moon7Mon
8Tue1:086.81:257.27:470.78:130.46:496:12New Moon8Tue
9Wed1:496.82:057.48:270.88:550.46:516:10New Moon9Wed
10Thu2:306.72:467.59:070.99:370.46:526:09Waxing Crescent10Thu
11Fri3:126.73:287.59:471.010:210.56:536:07Waxing Crescent11Fri
12Sat3:556.64:127.510:301.111:080.66:546:05Waxing Crescent12Sat
13Sun4:436.55:017.511:171.211:580.66:556:04Waxing Crescent13Sun
14Mon5:336.45:537.412:081.36:566:02First Quarter14Mon
15Tue6:266.46:477.412:510.61:041.36:586:01First Quarter15Tue
16Wed7:216.57:437.41:450.62:021.16:595:59First Quarter16Wed
17Thu8:186.78:417.42:410.53:010.97:005:57Waxing Gibbous17Thu
18Fri9:157.09:407.53:350.33:580.57:015:56Waxing Gibbous18Fri
19Sat10:117.410:377.64:280.14:530.17:025:54Waxing Gibbous19Sat
20Sun11:047.911:317.75:18-0.15:47-0.47:045:53Waxing Gibbous20Sun
21Mon11:558.36:08-0.36:40-0.77:055:51Full Moon21Mon
22Tue12:247.712:468.66:58-0.47:32-0.97:065:50Full Moon22Tue
23Wed1:167.71:368.87:47-0.48:23-1.07:075:48Full Moon23Wed
24Thu2:077.62:268.88:36-0.39:14-1.07:085:47Waning Gibbous24Thu
25Fri2:577.43:158.79:26-0.110:05-0.87:105:45Waning Gibbous25Fri
26Sat3:477.14:068.410:180.110:58-0.57:115:44Waning Gibbous26Sat
27Sun4:396.94:598.011:120.411:52-0.27:125:42Third Quarter27Sun
28Mon5:346.65:547.612:080.67:135:41Third Quarter28Mon
29Tue6:296.56:497.212:460.11:050.87:155:40Third Quarter29Tue
30Wed7:246.47:446.91:400.32:010.97:165:38Third Quarter30Wed
31Thu8:196.48:406.72:340.52:580.97:175:37Waning Crescent31Thu
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 2:06 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 spring phase. Tonight's moon is 92% 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 (92% 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