Tides Today & Tomorrow in Merrimack River Entrance, MA

TIDE TIMES for Sunday, June 7, 2026
The tide is currently falling in Merrimack River Entrance, MA.
Next low tide : in 44m at 11:19 am (0.7 ft)
Next high tide : 5:32 pm (7.5 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:05 am
Moon phase : Third Quarter (58% illuminated)
Tide Station Location : Station #8440452
Common Questions About Tides

Merrimack River Entrance, MA Tides - Apr 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:458.84:207.810:10-0.110:250.76:237:09Third Quarter1Thu
2Fri4:388.75:167.711:060.011:220.76:227:11Third Quarter2Fri
3Sat5:368.76:167.712:040.06:207:12Third Quarter3Sat
4Sun6:388.67:187.912:230.71:050.06:187:13Third Quarter4Sun
5Mon7:428.78:208.21:270.52:07-0.16:167:14Waning Crescent5Mon
6Tue8:458.89:188.62:310.23:06-0.36:157:15Waning Crescent6Tue
7Wed9:449.010:139.13:32-0.24:01-0.56:137:16Waning Crescent7Wed
8Thu10:399.111:049.44:28-0.64:53-0.66:117:17New Moon8Thu
9Fri11:329.211:549.75:22-0.95:42-0.76:107:19New Moon9Fri
10Sat12:229.16:13-1.16:30-0.66:087:20New Moon10Sat
11Sun12:419.81:109.07:01-1.17:16-0.46:067:21New Moon11Sun
12Mon1:279.71:588.77:49-1.08:02-0.16:057:22Waxing Crescent12Mon
13Tue2:139.52:458.48:36-0.78:490.26:037:23Waxing Crescent13Tue
14Wed3:009.23:338.19:23-0.49:370.66:017:24Waxing Crescent14Wed
15Thu3:498.84:237.710:130.010:280.96:007:26First Quarter15Thu
16Fri4:408.45:167.411:050.411:221.25:587:27First Quarter16Fri
17Sat5:348.06:107.311:590.75:567:28First Quarter17Sat
18Sun6:297.87:067.212:181.412:540.95:557:29First Quarter18Sun
19Mon7:277.68:017.31:161.41:491.05:537:30First Quarter19Mon
20Tue8:237.68:537.52:131.32:421.05:527:31Waxing Gibbous20Tue
21Wed9:157.69:417.83:071.13:300.95:507:32Waxing Gibbous21Wed
22Thu10:037.710:248.13:550.94:140.85:497:34Waxing Gibbous22Thu
23Fri10:487.811:058.44:410.64:560.75:477:35Waxing Gibbous23Fri
24Sat11:317.911:458.65:230.35:360.75:467:36Full Moon24Sat
25Sun12:128.06:050.06:160.65:447:37Full Moon25Sun
26Mon12:258.912:548.16:46-0.26:560.55:437:38Full Moon26Mon
27Tue1:069.11:378.27:28-0.47:380.55:417:39Waning Gibbous27Tue
28Wed1:489.22:218.28:12-0.58:230.45:407:40Waning Gibbous28Wed
29Thu2:349.33:108.29:00-0.59:120.55:387:42Waning Gibbous29Thu
30Fri3:249.24:028.29:51-0.410:070.55:377:43Waning Gibbous30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440452)

Common Questions About Merrimack River Entrance, MA Tides

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What time does the tide turn (slack tide) in Merrimack River Entrance, MA today?

Slack tide in Merrimack River Entrance, MA is approximately 2:25 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 Merrimack River Entrance, MA?

Merrimack River Entrance, 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 Merrimack River Entrance, 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 Merrimack River Entrance, MA?

Tide predictions for Merrimack River Entrance, 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 Merrimack River Entrance, MA?

Tide data for Merrimack River Entrance, MA is sourced from NOAA Station #8440452. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8440452.

What is the moon phase in Merrimack River Entrance, MA tonight?

Tonight the moon over Merrimack River Entrance, MA is Third Quarter (58% illuminated). This places Merrimack River Entrance, 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