Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 1:08 pm (0.6 ft)
Next high tide : in 5h 35m at 6:25 am (7.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Nov 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:426.912:597.87:090.37:43-0.27:185:36New Moon1Wed
2Thu1:276.71:427.97:540.58:29-0.17:195:34New Moon2Thu
3Fri2:106.62:237.88:370.79:140.07:215:33Waxing Crescent3Fri
4Sat2:536.43:057.79:210.99:590.27:225:32Waxing Crescent4Sat
5Sun2:366.32:497.59:051.19:460.46:234:31Waxing Crescent5Sun
6Mon3:216.13:367.39:531.310:350.66:254:30Waxing Crescent6Mon
7Tue4:106.04:267.110:441.411:260.86:264:28First Quarter7Tue
8Wed5:015.95:186.911:381.56:274:27First Quarter8Wed
9Thu5:535.96:116.812:180.912:331.56:284:26First Quarter9Thu
10Fri6:466.07:056.61:100.91:281.56:304:25First Quarter10Fri
11Sat7:406.28:006.62:020.92:241.36:314:24Waxing Gibbous11Sat
12Sun8:326.58:536.62:520.83:161.06:324:23Waxing Gibbous12Sun
13Mon9:216.89:446.63:380.84:060.76:334:22Waxing Gibbous13Mon
14Tue10:077.210:326.74:230.74:540.46:354:21Waxing Gibbous14Tue
15Wed10:527.611:196.75:060.75:410.16:364:20Full Moon15Wed
16Thu11:378.05:500.66:28-0.16:374:19Full Moon16Thu
17Fri12:076.812:238.26:350.67:16-0.36:384:18Full Moon17Fri
18Sat12:556.81:118.47:200.58:04-0.46:404:18Waning Gibbous18Sat
19Sun1:446.82:008.58:070.58:55-0.56:414:17Waning Gibbous19Sun
20Mon2:356.72:528.48:590.69:48-0.46:424:16Waning Gibbous20Mon
21Tue3:296.63:478.29:550.610:44-0.36:434:15Waning Gibbous21Tue
22Wed4:266.64:458.010:560.611:40-0.26:444:15Third Quarter22Wed
23Thu5:246.65:447.611:570.66:464:14Third Quarter23Thu
24Fri6:236.76:447.312:36-0.112:580.66:474:14Third Quarter24Fri
25Sat7:226.97:447.01:320.02:000.56:484:13Waning Crescent25Sat
26Sun8:207.18:446.72:270.12:590.36:494:12Waning Crescent26Sun
27Mon9:157.39:406.53:190.23:540.16:504:12Waning Crescent27Mon
28Tue10:047.510:316.44:080.34:450.06:514:12Waning Crescent28Tue
29Wed10:507.611:186.24:560.45:350.06:534:11New Moon29Wed
30Thu11:337.65:420.66:220.06:544:11New Moon30Thu
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 9:46 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 52% 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 (52% 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