Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 10:08 am (0.5 ft)
Next high tide (tomorrow) : in 4h 57m at 3:13 am (7.6 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Oct 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:476.46:070.76:240.86:416:25New Moon1Sat
2Sun12:077.012:296.76:500.77:080.66:426:23New Moon2Sun
3Mon12:497.01:097.07:310.67:510.56:436:21New Moon3Mon
4Tue1:317.01:497.38:100.68:330.46:446:20New Moon4Tue
5Wed2:137.02:307.58:480.79:150.36:466:18Waxing Crescent5Wed
6Thu2:557.03:127.79:260.89:590.36:476:16Waxing Crescent6Thu
7Fri3:406.83:577.810:060.910:480.36:486:15Waxing Crescent7Fri
8Sat4:286.74:467.810:531.011:420.36:496:13Waxing Crescent8Sat
9Sun5:216.55:417.811:481.16:506:11First Quarter9Sun
10Mon6:186.46:387.712:390.412:481.26:516:09First Quarter10Mon
11Tue7:176.37:397.71:380.41:511.16:526:08First Quarter11Tue
12Wed8:186.48:417.62:390.32:540.96:546:06Waxing Gibbous12Wed
13Thu9:206.69:447.73:380.23:550.66:556:04Waxing Gibbous13Thu
14Fri10:196.910:437.74:330.04:530.36:566:03Waxing Gibbous14Fri
15Sat11:147.311:377.75:25-0.25:47-0.16:576:01Waxing Gibbous15Sat
16Sun12:047.76:14-0.26:40-0.36:586:00Full Moon16Sun
17Mon12:297.612:528.07:02-0.27:31-0.57:005:58Full Moon17Mon
18Tue1:187.41:378.17:48-0.18:20-0.57:015:56Full Moon18Tue
19Wed2:057.22:228.18:330.19:07-0.47:025:55Waning Gibbous19Wed
20Thu2:506.93:068.09:180.49:55-0.27:035:53Waning Gibbous20Thu
21Fri3:356.73:507.810:040.710:430.17:045:52Waning Gibbous21Fri
22Sat4:226.44:387.610:531.011:340.47:065:50Waning Gibbous22Sat
23Sun5:116.15:287.311:441.27:075:49Third Quarter23Sun
24Mon6:036.06:217.012:260.612:381.47:085:47Third Quarter24Mon
25Tue6:565.87:156.81:190.81:331.57:095:46Third Quarter25Tue
26Wed7:505.88:106.72:140.92:301.57:115:44Third Quarter26Wed
27Thu8:465.99:066.63:070.93:261.47:125:43Waning Crescent27Thu
28Fri9:396.110:006.63:590.94:191.27:135:41Waning Crescent28Fri
29Sat10:286.410:496.74:460.85:080.97:145:40Waning Crescent29Sat
30Sun10:136.810:346.74:310.74:550.76:164:39Waning Crescent30Sun
31Mon10:567.111:196.75:140.75:410.56:174:37New Moon31Mon
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 6:40 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 spring phase. Tonight's moon is 94% 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 Waning Gibbous (94% 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