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 39m 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 - Dec 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:278.310:576.94:36-0.25:15-0.76:544:11New Moon1Mon
2Tue11:188.411:496.95:27-0.16:07-0.76:554:10New Moon2Tue
3Wed12:088.46:17-0.16:57-0.76:564:10New Moon3Wed
4Thu12:396.812:568.37:070.07:46-0.76:574:10New Moon4Thu
5Fri1:266.71:438.27:550.28:33-0.56:584:10Waxing Crescent5Fri
6Sat2:136.72:297.98:440.39:21-0.36:594:10Waxing Crescent6Sat
7Sun3:006.63:167.69:330.510:09-0.17:004:09Waxing Crescent7Sun
8Mon3:486.54:057.310:250.710:580.27:014:09First Quarter8Mon
9Tue4:376.54:557.011:170.811:470.47:024:09First Quarter9Tue
10Wed5:286.55:466.712:100.97:034:09First Quarter10Wed
11Thu6:186.56:376.412:370.51:041.07:044:09First Quarter11Thu
12Fri7:096.67:316.21:280.71:590.97:054:10Waxing Gibbous12Fri
13Sat8:016.78:256.12:190.72:530.87:054:10Waxing Gibbous13Sat
14Sun8:526.99:176.03:090.83:440.67:064:10Waxing Gibbous14Sun
15Mon9:407.110:066.13:570.84:330.57:074:10Waxing Gibbous15Mon
16Tue10:267.310:536.14:430.85:200.37:084:10Waxing Gibbous16Tue
17Wed11:127.511:396.35:290.76:070.17:084:11Full Moon17Wed
18Thu11:577.76:140.76:520.07:094:11Full Moon18Thu
19Fri12:266.412:427.96:580.67:37-0.27:104:11Full Moon19Fri
20Sat1:126.61:288.17:430.58:21-0.37:104:12Waning Gibbous20Sat
21Sun1:586.82:158.18:290.49:07-0.47:114:12Waning Gibbous21Sun
22Mon2:477.03:048.19:190.39:56-0.47:114:13Waning Gibbous22Mon
23Tue3:377.13:577.910:130.310:47-0.47:124:13Waning Gibbous23Tue
24Wed4:317.34:517.711:100.211:39-0.37:124:14Third Quarter24Wed
25Thu5:257.55:477.412:080.17:124:14Third Quarter25Thu
26Fri6:217.66:457.012:33-0.21:080.07:134:15Third Quarter26Fri
27Sat7:187.77:456.71:29-0.12:08-0.17:134:16Waning Crescent27Sat
28Sun8:167.88:456.62:25-0.13:06-0.27:134:16Waning Crescent28Sun
29Mon9:137.99:436.53:210.04:02-0.47:144:17Waning Crescent29Mon
30Tue10:078.010:386.44:140.04:56-0.57:144:18Waning Crescent30Tue
31Wed10:598.011:306.55:060.05:47-0.57:144:19New Moon31Wed
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