Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 10:39 pm (1.4 ft)
Next high tide : in 4h 04m at 4:09 pm (6.2 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Dec 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:006.12:137.68:290.99:080.26:544:11Waxing Crescent1Wed
2Thu2:446.12:587.49:151.09:540.46:554:10Waxing Crescent2Thu
3Fri3:306.13:457.210:031.210:420.56:564:10Waxing Crescent3Fri
4Sat4:186.14:347.010:551.211:310.66:574:10First Quarter4Sat
5Sun5:086.25:256.811:471.36:584:10First Quarter5Sun
6Mon5:586.36:166.512:190.712:411.36:594:09First Quarter6Mon
7Tue6:496.47:096.31:090.81:361.27:004:09First Quarter7Tue
8Wed7:406.68:036.21:590.92:311.07:014:09Waxing Gibbous8Wed
9Thu8:316.98:576.22:480.93:230.87:024:09Waxing Gibbous9Thu
10Fri9:217.29:486.23:360.94:140.57:034:09Waxing Gibbous10Fri
11Sat10:097.510:386.24:220.85:030.27:044:09Waxing Gibbous11Sat
12Sun10:567.811:286.35:090.75:52-0.17:054:10Full Moon12Sun
13Mon11:458.15:560.66:41-0.37:064:10Full Moon13Mon
14Tue12:176.512:348.36:440.57:29-0.57:064:10Full Moon14Tue
15Wed1:076.61:248.57:330.38:18-0.67:074:10Waning Gibbous15Wed
16Thu1:586.72:158.58:230.29:08-0.67:084:10Waning Gibbous16Thu
17Fri2:496.93:078.39:170.210:00-0.67:084:11Waning Gibbous17Fri
18Sat3:437.04:028.010:140.210:52-0.57:094:11Third Quarter18Sat
19Sun4:387.14:597.611:130.211:46-0.37:104:11Third Quarter19Sun
20Mon5:347.25:557.212:130.27:104:12Third Quarter20Mon
21Tue6:307.36:536.812:40-0.21:130.27:114:12Third Quarter21Tue
22Wed7:277.47:536.41:340.02:130.27:114:13Waning Crescent22Wed
23Thu8:247.58:526.12:290.23:100.17:124:13Waning Crescent23Thu
24Fri9:187.59:486.03:220.44:040.07:124:14Waning Crescent24Fri
25Sat10:087.510:395.94:130.54:560.07:124:14Waning Crescent25Sat
26Sun10:567.511:265.85:020.65:450.07:134:15New Moon26Sun
27Mon11:417.55:500.76:320.17:134:16New Moon27Mon
28Tue12:115.912:247.56:360.77:160.17:134:17New Moon28Tue
29Wed12:535.91:077.47:210.87:590.17:144:17New Moon29Wed
30Thu1:356.01:497.48:050.88:420.27:144:18Waxing Crescent30Thu
31Fri2:176.12:317.38:480.99:240.37:144:19Waxing Crescent31Fri
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 7:24 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 84% 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 (84% 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