Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, June 3, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 10:35 am (0.6 ft)
Next high tide (tomorrow) : in 5h 16m at 3:37 am (7.5 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Sep 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:395.88:036.92:091.12:211.56:097:18First Quarter1Mon
2Tue8:355.78:596.93:051.13:171.56:107:16Waxing Gibbous2Tue
3Wed9:325.89:557.14:001.04:101.46:117:15Waxing Gibbous3Wed
4Thu10:265.910:477.34:520.85:011.16:127:13Waxing Gibbous4Thu
5Fri11:166.211:377.55:400.65:500.96:137:11Waxing Gibbous5Fri
6Sat12:056.66:270.36:380.66:147:09Full Moon6Sat
7Sun12:257.812:517.07:120.17:260.26:157:08Full Moon7Sun
8Mon1:127.91:387.57:56-0.18:13-0.16:167:06Full Moon8Mon
9Tue2:008.02:247.98:39-0.29:01-0.36:177:04Waning Gibbous9Tue
10Wed2:487.93:108.19:23-0.19:51-0.46:187:02Waning Gibbous10Wed
11Thu3:367.73:598.310:090.010:44-0.46:197:00Waning Gibbous11Thu
12Fri4:287.44:518.310:590.211:41-0.26:206:59Waning Gibbous12Fri
13Sat5:227.05:468.111:540.46:226:57Third Quarter13Sat
14Sun6:196.66:437.912:39-0.112:520.66:236:55Third Quarter14Sun
15Mon7:186.37:437.71:390.11:520.86:246:53Third Quarter15Mon
16Tue8:206.18:467.52:400.32:540.96:256:51Waning Crescent16Tue
17Wed9:246.19:497.43:400.33:540.86:266:50Waning Crescent17Wed
18Thu10:256.210:467.34:360.34:500.76:276:48Waning Crescent18Thu
19Fri11:186.411:387.35:280.35:430.66:286:46Waning Crescent19Fri
20Sat12:056.66:160.36:330.56:296:44New Moon20Sat
21Sun12:247.212:486.87:010.37:200.46:306:43New Moon21Sun
22Mon1:077.11:287.07:440.48:040.46:316:41New Moon22Mon
23Tue1:487.02:067.18:240.58:470.46:326:39New Moon23Tue
24Wed2:286.92:457.29:040.79:300.46:336:37Waxing Crescent24Wed
25Thu3:086.73:247.39:440.910:130.56:356:35Waxing Crescent25Thu
26Fri3:506.64:077.310:251.110:590.76:366:34Waxing Crescent26Fri
27Sat4:356.44:527.211:101.311:490.86:376:32Waxing Crescent27Sat
28Sun5:236.25:427.111:591.56:386:30First Quarter28Sun
29Mon6:146.06:347.012:411.012:511.66:396:28First Quarter29Mon
30Tue7:075.97:286.91:351.11:461.66:406:26First Quarter30Tue
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 7:06 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 90% 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 (90% 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