Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 10:34 pm (0.7 ft)
Next high tide : in 1h 39m at 3:59 pm (7.0 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Dec 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:557.11:138.97:21-0.18:04-1.06:554:10Waning Gibbous1Sat
2Sun1:477.02:048.78:120.08:56-0.96:564:10Waning Gibbous2Sun
3Mon2:386.82:568.59:050.29:50-0.66:574:10Waning Gibbous3Mon
4Tue3:326.73:508.110:000.410:44-0.46:584:10Waning Gibbous4Tue
5Wed4:276.54:457.710:580.511:38-0.16:594:09Third Quarter5Wed
6Thu5:236.55:417.211:560.77:004:09Third Quarter6Thu
7Fri6:196.56:376.812:310.112:540.87:014:09Third Quarter7Fri
8Sat7:146.57:336.51:250.31:520.87:024:09Waning Crescent8Sat
9Sun8:096.68:296.22:170.42:470.77:034:09Waning Crescent9Sun
10Mon9:006.89:226.13:070.63:400.67:044:09Waning Crescent10Mon
11Tue9:466.910:106.03:550.74:290.57:054:09Waning Crescent11Tue
12Wed10:297.010:556.04:400.85:160.47:064:10Waning Crescent12Wed
13Thu11:117.211:385.95:250.96:020.37:064:10New Moon13Thu
14Fri11:527.36:090.96:460.37:074:10New Moon14Fri
15Sat12:216.012:347.36:521.07:290.37:084:10New Moon15Sat
16Sun1:036.01:167.47:341.08:120.37:084:11New Moon16Sun
17Mon1:456.11:587.58:151.18:550.37:094:11Waxing Crescent17Mon
18Tue2:286.12:427.58:571.19:390.37:104:11Waxing Crescent18Tue
19Wed3:146.23:287.49:431.110:260.37:104:12Waxing Crescent19Wed
20Thu4:036.34:187.310:331.111:140.37:114:12Waxing Crescent20Thu
21Fri4:546.45:107.211:271.17:114:13First Quarter21Fri
22Sat5:466.76:047.112:030.312:240.97:124:13First Quarter22Sat
23Sun6:396.97:006.912:540.31:220.77:124:14First Quarter23Sun
24Mon7:337.27:586.81:470.32:210.47:124:15Waxing Gibbous24Mon
25Tue8:297.68:576.72:400.23:190.07:134:15Waxing Gibbous25Tue
26Wed9:248.09:546.73:330.14:14-0.37:134:16Waxing Gibbous26Wed
27Thu10:178.310:506.74:250.15:09-0.67:134:17Waxing Gibbous27Thu
28Fri11:108.511:446.75:170.06:03-0.87:134:17Full Moon28Fri
29Sat12:038.66:10-0.16:55-1.07:144:18Full Moon29Sat
30Sun12:376.712:558.67:02-0.17:46-0.97:144:19Full Moon30Sun
31Mon1:286.71:468.57:54-0.18:36-0.87:144:20Waning Gibbous31Mon
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 7:16 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 84% 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 (84% 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