Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 1:41 am (0.8 ft)
Next high tide : in 2h 16m at 6:56 pm (7.3 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 - Jun 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:447.310:157.94:030.04:24-0.15:078:15Waning Crescent1Sun
2Mon10:417.111:088.14:58-0.25:16-0.15:078:16Waning Crescent2Mon
3Tue11:357.011:578.25:52-0.36:070.05:068:17New Moon3Tue
4Wed12:266.96:43-0.36:560.15:068:17New Moon4Wed
5Thu12:458.21:146.87:33-0.47:450.35:068:18New Moon5Thu
6Fri1:328.12:006.88:21-0.38:310.45:058:19New Moon6Fri
7Sat2:168.02:456.79:07-0.29:170.65:058:20Waxing Crescent7Sat
8Sun3:007.93:296.79:52-0.110:040.75:058:20Waxing Crescent8Sun
9Mon3:457.74:156.610:390.110:520.95:058:21Waxing Crescent9Mon
10Tue4:317.55:036.611:260.311:421.05:058:21Waxing Crescent10Tue
11Wed5:197.35:526.612:150.45:048:22First Quarter11Wed
12Thu6:097.16:426.612:341.11:040.65:048:22First Quarter12Thu
13Fri7:006.97:326.71:261.11:540.75:048:23First Quarter13Fri
14Sat7:526.78:236.82:201.12:450.85:048:23First Quarter14Sat
15Sun8:456.69:157.03:141.03:350.85:048:24Waxing Gibbous15Sun
16Mon9:386.510:057.24:070.94:240.85:048:24Waxing Gibbous16Mon
17Tue10:306.510:547.54:570.75:110.85:048:24Waxing Gibbous17Tue
18Wed11:196.611:417.85:460.45:580.75:048:25Waxing Gibbous18Wed
19Thu12:086.76:340.26:440.65:058:25Full Moon19Thu
20Fri12:288.112:576.87:22-0.17:310.55:058:25Full Moon20Fri
21Sat1:168.31:467.08:09-0.38:180.45:058:26Full Moon21Sat
22Sun2:048.52:357.28:57-0.59:060.35:058:26Waning Gibbous22Sun
23Mon2:538.63:247.39:45-0.69:570.25:058:26Waning Gibbous23Mon
24Tue3:438.64:167.410:35-0.610:510.25:068:26Waning Gibbous24Tue
25Wed4:368.45:107.511:27-0.611:470.15:068:26Waning Gibbous25Wed
26Thu5:318.26:067.612:21-0.55:078:26Third Quarter26Thu
27Fri6:277.97:017.712:450.11:15-0.45:078:26Third Quarter27Fri
28Sat7:247.57:587.71:440.12:10-0.25:078:26Third Quarter28Sat
29Sun8:227.28:557.82:430.13:05-0.15:088:26Waning Crescent29Sun
30Mon9:226.99:527.83:420.14:000.15:088:26Waning Crescent30Mon
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 10:18 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 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