Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 3:25 pm (0.8 ft)
Next high tide : in 1h 19m at 8:48 am (6.2 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 - Aug 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:506.76:08-0.36:200.15:368:04New Moon1Mon
2Tue12:128.112:416.86:59-0.37:110.15:378:03New Moon2Tue
3Wed1:018.01:296.87:47-0.38:000.15:388:02New Moon3Wed
4Thu1:477.92:146.98:34-0.38:470.25:398:00New Moon4Thu
5Fri2:327.82:587.09:18-0.19:340.35:407:59Waxing Crescent5Fri
6Sat3:157.63:417.010:020.010:200.45:417:58Waxing Crescent6Sat
7Sun3:597.44:267.010:480.211:090.65:427:56Waxing Crescent7Sun
8Mon4:457.25:127.011:340.411:590.75:437:55Waxing Crescent8Mon
9Tue5:336.96:017.012:220.65:447:54First Quarter9Tue
10Wed6:236.76:507.012:500.81:110.85:457:52First Quarter10Wed
11Thu7:146.47:417.01:420.92:020.95:467:51First Quarter11Thu
12Fri8:066.28:337.02:370.92:541.05:477:50First Quarter12Fri
13Sat9:016.29:277.13:310.93:471.05:487:48Waxing Gibbous13Sat
14Sun9:556.210:197.34:240.74:370.95:497:47Waxing Gibbous14Sun
15Mon10:466.311:087.55:140.55:260.85:507:45Waxing Gibbous15Mon
16Tue11:366.511:567.76:020.36:140.65:527:44Full Moon16Tue
17Wed12:246.86:490.17:010.45:537:42Full Moon17Wed
18Thu12:448.01:117.17:35-0.17:480.25:547:41Full Moon18Thu
19Fri1:328.21:587.48:20-0.38:350.05:557:39Full Moon19Fri
20Sat2:198.32:467.79:05-0.49:23-0.25:567:37Waning Gibbous20Sat
21Sun3:078.33:347.99:51-0.410:14-0.35:577:36Waning Gibbous21Sun
22Mon3:578.14:248.110:40-0.411:07-0.35:587:34Waning Gibbous22Mon
23Tue4:507.95:188.111:32-0.35:597:33Third Quarter23Tue
24Wed5:447.66:138.112:04-0.212:26-0.16:007:31Third Quarter24Wed
25Thu6:417.27:098.01:02-0.21:220.16:017:29Third Quarter25Thu
26Fri7:396.98:077.92:01-0.12:200.26:027:28Third Quarter26Fri
27Sat8:396.79:087.83:000.03:180.36:037:26Waning Crescent27Sat
28Sun9:406.610:077.73:580.04:150.36:057:24Waning Crescent28Sun
29Mon10:386.611:027.74:54-0.15:090.36:067:23Waning Crescent29Mon
30Tue11:316.711:527.65:46-0.16:010.26:077:21New Moon30Tue
31Wed12:206.86:35-0.16:510.26:087:19New Moon31Wed
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 12:06 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 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