Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 3h 33m at 3:27 pm (0.8 ft)
Next high tide : 9:20 pm (7.9 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Dec 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:007.11:188.97:27-0.18:10-1.06:544:11Waning Gibbous1Thu
2Fri1:517.12:108.88:19-0.19:02-0.96:554:11Waning Gibbous2Fri
3Sat2:447.13:038.59:130.09:55-0.86:564:10Waning Gibbous3Sat
4Sun3:387.13:588.110:100.110:49-0.56:574:10Third Quarter4Sun
5Mon4:347.04:547.711:080.211:42-0.36:584:10Third Quarter5Mon
6Tue5:307.05:507.212:070.36:594:10Third Quarter6Tue
7Wed6:267.06:476.812:36-0.11:050.47:004:10Third Quarter7Wed
8Thu7:217.17:456.41:300.12:030.47:014:09Waning Crescent8Thu
9Fri8:177.18:416.22:230.32:590.47:024:09Waning Crescent9Fri
10Sat9:097.29:346.03:150.53:520.37:034:09Waning Crescent10Sat
11Sun9:567.210:226.04:030.64:410.37:044:09Waning Crescent11Sun
12Mon10:407.311:075.94:510.75:290.37:054:10New Moon12Mon
13Tue11:237.311:516.05:360.86:140.27:054:10New Moon13Tue
14Wed12:057.46:210.86:580.27:064:10New Moon14Wed
15Thu12:336.012:477.47:050.87:410.27:074:10New Moon15Thu
16Fri1:156.11:297.47:470.98:230.27:084:10Waxing Crescent16Fri
17Sat1:576.22:117.48:300.99:060.37:084:11Waxing Crescent17Sat
18Sun2:406.32:547.49:141.09:500.37:094:11Waxing Crescent18Sun
19Mon3:256.43:407.310:001.010:350.47:104:11Waxing Crescent19Mon
20Tue4:136.54:297.110:501.011:210.47:104:12First Quarter20Tue
21Wed5:026.75:206.911:421.07:114:12First Quarter21Wed
22Thu5:526.96:126.812:090.512:370.97:114:13First Quarter22Thu
23Fri6:447.17:076.612:590.51:340.77:124:13First Quarter23Fri
24Sat7:387.38:056.51:520.52:310.47:124:14Waxing Gibbous24Sat
25Sun8:337.79:036.52:450.53:270.17:124:14Waxing Gibbous25Sun
26Mon9:288.09:596.63:380.34:22-0.37:134:15Waxing Gibbous26Mon
27Tue10:228.310:546.74:300.25:15-0.67:134:16Full Moon27Tue
28Wed11:158.611:486.85:230.06:09-0.87:134:16Full Moon28Wed
29Thu12:098.76:17-0.27:00-1.07:144:17Full Moon29Thu
30Fri12:417.01:018.77:09-0.37:51-1.17:144:18Full Moon30Fri
31Sat1:337.11:528.68:02-0.48:41-1.17:144:19Waning Gibbous31Sat
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 6:23 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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 Crescent (22% illuminated). This places Merrimacport, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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