Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 1h 39m at 9:26 am (0.5 ft)
Next high tide : 2:59 pm (6.2 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 - Nov 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:166.98:397.52:320.22:540.56:184:36Waxing Gibbous1Wed
2Thu9:127.39:377.53:250.03:510.16:194:35Waxing Gibbous2Thu
3Fri10:057.810:317.54:15-0.14:45-0.36:204:34Waxing Gibbous3Fri
4Sat10:558.211:247.45:05-0.25:38-0.66:224:33Full Moon4Sat
5Sun11:448.55:53-0.16:30-0.86:234:31Full Moon5Sun
6Mon12:157.212:338.66:420.07:21-0.86:244:30Full Moon6Mon
7Tue1:057.01:218.67:300.18:10-0.76:254:29Waning Gibbous7Tue
8Wed1:536.82:088.48:180.39:00-0.46:274:28Waning Gibbous8Wed
9Thu2:416.62:578.19:080.69:51-0.16:284:27Waning Gibbous9Thu
10Fri3:316.33:487.710:000.910:440.26:294:26Waning Gibbous10Fri
11Sat4:236.14:407.310:551.111:370.46:304:25Third Quarter11Sat
12Sun5:176.05:347.011:501.26:324:24Third Quarter12Sun
13Mon6:116.06:286.712:300.612:471.36:334:23Third Quarter13Mon
14Tue7:056.07:246.51:220.71:431.36:344:22Third Quarter14Tue
15Wed7:596.28:196.42:140.82:391.16:354:21Waning Crescent15Wed
16Thu8:506.49:116.33:040.83:311.06:374:20Waning Crescent16Thu
17Fri9:366.79:596.33:500.84:190.86:384:19Waning Crescent17Fri
18Sat10:206.910:446.24:350.95:060.66:394:18Waning Crescent18Sat
19Sun11:017.211:286.25:180.95:510.56:404:17New Moon19Sun
20Mon11:437.46:001.06:360.36:424:17New Moon20Mon
21Tue12:116.212:257.56:421.07:190.36:434:16New Moon21Tue
22Wed12:546.31:077.77:221.18:020.26:444:15New Moon22Wed
23Thu1:386.31:517.88:031.18:470.26:454:14Waxing Crescent23Thu
24Fri2:236.32:377.88:471.19:350.26:464:14Waxing Crescent24Fri
25Sat3:126.33:277.89:361.110:260.26:484:13Waxing Crescent25Sat
26Sun4:056.44:217.710:321.111:190.16:494:13First Quarter26Sun
27Mon5:006.55:187.611:311.06:504:12First Quarter27Mon
28Tue5:566.76:157.412:130.112:320.86:514:12First Quarter28Tue
29Wed6:536.97:157.21:080.11:330.66:524:11First Quarter29Wed
30Thu7:517.38:157.12:030.12:340.36:534:11Waxing Gibbous30Thu
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 12:12 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 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