Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 3h 19m at 1:42 pm (0.3 ft)
Next high tide : 7:33 pm (7.0 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Apr 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:097.71:337.87:45-0.68:08-0.56:247:10New Moon1Mon
2Tue1:568.02:227.68:34-0.78:54-0.36:237:11New Moon2Tue
3Wed2:428.13:087.39:23-0.69:390.06:217:12Waxing Crescent3Wed
4Thu3:278.03:557.010:12-0.410:260.36:197:13Waxing Crescent4Thu
5Fri4:137.94:436.611:02-0.111:150.66:177:15Waxing Crescent5Fri
6Sat5:017.65:326.311:540.26:167:16First Quarter6Sat
7Sun5:517.36:246.012:060.912:470.56:147:17First Quarter7Sun
8Mon6:437.07:175.81:001.21:410.76:127:18First Quarter8Mon
9Tue7:386.88:125.71:551.32:360.96:117:19First Quarter9Tue
10Wed8:346.79:095.72:521.43:310.96:097:20Waxing Gibbous10Wed
11Thu9:316.610:045.93:481.34:230.96:077:21Waxing Gibbous11Thu
12Fri10:246.610:536.24:401.15:110.86:067:23Waxing Gibbous12Fri
13Sat11:136.711:376.55:290.95:570.76:047:24Waxing Gibbous13Sat
14Sun11:586.86:160.86:400.76:027:25Full Moon14Sun
15Mon12:206.812:426.87:020.67:220.76:017:26Full Moon15Mon
16Tue1:017.11:246.97:460.48:020.75:597:27Full Moon16Tue
17Wed1:427.42:076.98:280.28:410.75:577:28Full Moon17Wed
18Thu2:237.62:506.99:110.19:200.85:567:29Waning Gibbous18Thu
19Fri3:067.83:356.89:550.110:020.95:547:31Waning Gibbous19Fri
20Sat3:517.94:246.710:440.110:491.05:537:32Waning Gibbous20Sat
21Sun4:417.95:176.611:370.111:431.05:517:33Waning Gibbous21Sun
22Mon5:357.96:136.512:330.25:507:34Third Quarter22Mon
23Tue6:327.87:116.412:421.11:310.25:487:35Third Quarter23Tue
24Wed7:317.78:116.51:441.02:300.15:477:36Third Quarter24Wed
25Thu8:337.69:126.72:470.83:280.15:457:38Waning Crescent25Thu
26Fri9:357.610:117.13:480.64:23-0.15:447:39Waning Crescent26Fri
27Sat10:347.511:057.44:460.25:15-0.15:427:40Waning Crescent27Sat
28Sun11:297.511:567.85:41-0.16:05-0.25:417:41Waning Crescent28Sun
29Mon12:217.46:34-0.36:53-0.15:397:42New Moon29Mon
30Tue12:448.01:117.27:25-0.47:400.05:387:43New Moon30Tue
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 4:37 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Merrimacport, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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