Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 26m at 8:47 pm (1.2 ft)
Next high tide (tomorrow) : 2:31 am (7.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:09 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Apr 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:546.88:266.02:151.02:510.76:257:10Third Quarter1Wed
2Thu8:506.79:216.03:101.13:450.76:237:11Waning Crescent2Thu
3Fri9:446.710:146.24:041.04:360.66:217:12Waning Crescent3Fri
4Sat10:366.811:036.44:550.95:240.66:197:13Waning Crescent4Sat
5Sun11:246.911:486.75:430.76:100.56:187:14Waning Crescent5Sun
6Mon12:097.06:300.56:540.46:167:16New Moon6Mon
7Tue12:316.912:537.17:150.47:370.46:147:17New Moon7Tue
8Wed1:147.21:377.27:590.28:180.36:137:18New Moon8Wed
9Thu1:577.52:207.28:430.18:590.36:117:19New Moon9Thu
10Fri2:397.73:057.39:260.09:410.46:097:20Waxing Crescent10Fri
11Sat3:247.93:517.210:12-0.110:260.56:077:21Waxing Crescent11Sat
12Sun4:118.04:417.111:02-0.111:150.56:067:22Waxing Crescent12Sun
13Mon5:028.05:357.011:55-0.16:047:24First Quarter13Mon
14Tue5:568.06:316.912:100.612:51-0.16:037:25First Quarter14Tue
15Wed6:537.97:286.91:080.61:49-0.16:017:26First Quarter15Wed
16Thu7:527.88:286.92:080.62:48-0.15:597:27First Quarter16Thu
17Fri8:537.79:297.13:090.43:46-0.25:587:28Waxing Gibbous17Fri
18Sat9:537.710:277.34:080.24:41-0.35:567:29Waxing Gibbous18Sat
19Sun10:517.711:217.65:05-0.15:33-0.45:557:30Waxing Gibbous19Sun
20Mon11:457.75:59-0.36:23-0.45:537:32Full Moon20Mon
21Tue12:127.812:377.66:51-0.57:12-0.35:517:33Full Moon21Tue
22Wed1:008.01:267.57:41-0.58:00-0.25:507:34Full Moon22Wed
23Thu1:468.12:127.38:29-0.58:450.05:487:35Full Moon23Thu
24Fri2:308.12:577.19:16-0.49:310.25:477:36Waning Gibbous24Fri
25Sat3:148.03:426.910:03-0.210:170.55:457:37Waning Gibbous25Sat
26Sun3:597.84:286.710:510.011:060.75:447:39Waning Gibbous26Sun
27Mon4:467.65:176.511:410.211:561.05:427:40Waning Gibbous27Mon
28Tue5:357.36:076.412:310.45:417:41Third Quarter28Tue
29Wed6:267.16:596.312:481.11:230.65:407:42Third Quarter29Wed
30Thu7:186.97:516.31:421.22:160.75:387:43Third Quarter30Thu
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 11:39 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 97% 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 Full Moon (97% 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