Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 4:03 am (0.8 ft)
Next high tide : in 5h 27m at 9:17 pm (7.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jan 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:076.65:266.711:510.87:144:20Third Quarter1Fri
2Sat5:576.66:176.512:180.412:440.87:144:21Third Quarter2Sat
3Sun6:486.67:096.21:080.51:390.87:144:21Third Quarter3Sun
4Mon7:406.78:036.11:590.62:330.77:144:22Waning Crescent4Mon
5Tue8:326.88:576.02:500.73:250.67:144:23Waning Crescent5Tue
6Wed9:227.09:476.13:390.74:150.47:144:24Waning Crescent6Wed
7Thu10:107.310:366.24:270.65:030.27:144:25Waning Crescent7Thu
8Fri10:567.511:246.35:130.65:510.07:144:26New Moon8Fri
9Sat11:427.75:590.56:37-0.27:144:27New Moon9Sat
10Sun12:116.512:298.06:450.37:22-0.47:134:28New Moon10Sun
11Mon12:586.81:158.27:310.28:07-0.67:134:30New Moon11Mon
12Tue1:457.02:038.28:170.18:53-0.77:134:31Waxing Crescent12Tue
13Wed2:337.22:528.29:060.09:42-0.77:124:32Waxing Crescent13Wed
14Thu3:237.33:438.09:59-0.110:32-0.67:124:33Waxing Crescent14Thu
15Fri4:167.54:377.810:55-0.111:25-0.57:114:34First Quarter15Fri
16Sat5:107.65:337.411:53-0.17:114:35First Quarter16Sat
17Sun6:067.66:307.112:19-0.412:52-0.17:104:36First Quarter17Sun
18Mon7:037.67:306.81:15-0.21:52-0.17:104:38Waxing Gibbous18Mon
19Tue8:017.78:316.52:12-0.12:52-0.27:094:39Waxing Gibbous19Tue
20Wed9:007.79:306.43:08-0.13:48-0.37:094:40Waxing Gibbous20Wed
21Thu9:557.810:256.44:020.04:42-0.47:084:41Waxing Gibbous21Thu
22Fri10:477.811:166.44:550.05:34-0.47:074:43Full Moon22Fri
23Sat11:367.75:450.06:23-0.47:064:44Full Moon23Sat
24Sun12:056.412:227.76:340.17:10-0.47:064:45Full Moon24Sun
25Mon12:506.51:077.67:210.17:54-0.37:054:47Full Moon25Mon
26Tue1:336.61:497.58:070.28:38-0.27:044:48Waning Gibbous26Tue
27Wed2:156.62:327.48:520.39:21-0.17:034:49Waning Gibbous27Wed
28Thu2:596.73:167.29:390.410:060.17:024:50Waning Gibbous28Thu
29Fri3:446.74:036.910:270.510:530.37:014:52Waning Gibbous29Fri
30Sat4:316.74:516.711:170.611:400.57:004:53Third Quarter30Sat
31Sun5:196.75:416.412:090.76:594:54Third Quarter31Sun
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 12:40 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 transitional phase. Tonight's moon is 76% 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 shifting between spring and neap.

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 Waxing Gibbous (76% illuminated). This places Merrimacport, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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