Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 2:40 am (0.6 ft)
Next high tide : in 5h 37m at 7:49 pm (7.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jun 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:186.111:367.25:390.75:491.05:078:16Waning Crescent1Mon
2Tue12:036.16:260.66:341.15:078:17New Moon2Tue
3Wed12:187.412:466.17:120.57:181.15:068:17New Moon3Wed
4Thu1:017.51:306.17:560.58:011.25:068:18New Moon4Thu
5Fri1:437.62:126.28:390.48:431.25:068:19New Moon5Fri
6Sat2:267.72:566.39:220.49:251.25:058:19Waxing Crescent6Sat
7Sun3:097.73:406.410:050.410:091.25:058:20Waxing Crescent7Sun
8Mon3:547.74:276.510:500.410:571.25:058:21Waxing Crescent8Mon
9Tue4:427.75:176.711:370.411:491.15:058:21Waxing Crescent9Tue
10Wed5:337.66:086.912:260.35:058:22First Quarter10Wed
11Thu6:267.47:017.212:441.01:160.45:058:22First Quarter11Thu
12Fri7:217.37:557.41:420.82:080.45:048:23First Quarter12Fri
13Sat8:187.18:507.72:410.63:020.45:048:23Waxing Gibbous13Sat
14Sun9:186.99:468.13:400.33:560.45:048:24Waxing Gibbous14Sun
15Mon10:166.810:418.34:380.04:490.35:048:24Waxing Gibbous15Mon
16Tue11:136.811:358.65:33-0.35:420.35:048:24Waxing Gibbous16Tue
17Wed12:086.86:28-0.56:350.25:058:25Full Moon17Wed
18Thu12:298.71:036.87:21-0.67:280.25:058:25Full Moon18Thu
19Fri1:218.71:556.88:13-0.68:210.25:058:25Full Moon19Fri
20Sat2:138.62:466.89:03-0.69:120.25:058:26Waning Gibbous20Sat
21Sun3:038.43:356.89:53-0.410:040.45:058:26Waning Gibbous21Sun
22Mon3:528.14:256.810:42-0.210:560.55:068:26Waning Gibbous22Mon
23Tue4:427.75:156.811:310.011:500.75:068:26Third Quarter23Tue
24Wed5:337.36:066.812:200.25:068:26Third Quarter24Wed
25Thu6:246.96:566.912:440.81:090.55:078:26Third Quarter25Thu
26Fri7:156.67:466.91:380.91:590.75:078:26Third Quarter26Fri
27Sat8:076.28:376.92:330.92:500.95:078:26Waning Crescent27Sat
28Sun9:016.09:287.03:270.93:411.05:088:26Waning Crescent28Sun
29Mon9:545.910:177.14:200.94:301.15:088:26Waning Crescent29Mon
30Tue10:445.811:047.25:100.85:181.25:098:26Waning Crescent30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440369)

Common Questions About Merrimacport, MA Tides

Show All
What time does the tide turn (slack tide) in Merrimacport, MA today?

Slack tide in Merrimacport, MA is approximately 11:14 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 41% 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 (41% 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