Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 6:36 pm (1.2 ft)
Next high tide : in 1h 31m at 12:07 pm (5.8 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - May 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:556.69:266.53:191.13:460.85:377:44Waxing Gibbous1Sun
2Mon9:496.510:166.74:120.94:350.85:367:45Waxing Gibbous2Mon
3Tue10:396.611:027.05:020.85:210.85:347:46Waxing Gibbous3Tue
4Wed11:266.611:477.25:500.66:060.75:337:48Waxing Gibbous4Wed
5Thu12:126.76:360.46:500.75:327:49Full Moon5Thu
6Fri12:307.512:576.77:220.27:340.75:307:50Full Moon6Fri
7Sat1:147.81:416.88:060.18:160.75:297:51Full Moon7Sat
8Sun1:588.02:276.98:510.08:590.75:287:52Full Moon8Sun
9Mon2:438.13:137.09:36-0.19:440.65:277:53Waning Gibbous9Mon
10Tue3:308.24:027.010:23-0.210:330.65:267:54Waning Gibbous10Tue
11Wed4:198.24:547.011:14-0.211:270.65:247:55Waning Gibbous11Wed
12Thu5:138.25:487.112:08-0.25:237:56Third Quarter12Thu
13Fri6:098.06:447.212:240.61:02-0.15:227:57Third Quarter13Fri
14Sat7:067.87:417.31:240.51:58-0.15:217:59Third Quarter14Sat
15Sun8:047.68:407.52:240.42:54-0.15:208:00Third Quarter15Sun
16Mon9:057.49:387.73:240.23:49-0.15:198:01Waning Crescent16Mon
17Tue10:047.310:338.04:220.04:43-0.15:188:02Waning Crescent17Tue
18Wed11:007.211:258.15:17-0.25:34-0.15:178:03Waning Crescent18Wed
19Thu11:537.06:10-0.46:240.05:168:04New Moon19Thu
20Fri12:158.212:447.07:01-0.47:140.15:158:05New Moon20Fri
21Sat1:038.31:326.97:51-0.48:020.35:158:06New Moon21Sat
22Sun1:498.22:186.88:38-0.38:490.45:148:07New Moon22Sun
23Mon2:348.13:036.79:25-0.29:350.65:138:08Waxing Crescent23Mon
24Tue3:197.93:486.610:110.010:230.85:128:09Waxing Crescent24Tue
25Wed4:047.74:356.610:590.211:130.95:118:09Waxing Crescent25Wed
26Thu4:527.55:246.511:470.45:118:10First Quarter26Thu
27Fri5:427.26:146.512:041.112:360.55:108:11First Quarter27Fri
28Sat6:327.07:046.612:561.11:260.75:108:12First Quarter28Sat
29Sun7:236.87:556.71:501.22:170.85:098:13First Quarter29Sun
30Mon8:166.68:476.82:441.13:080.85:088:14First Quarter30Mon
31Tue9:106.59:387.03:381.03:570.95:088:15Waxing Gibbous31Tue
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 3:21 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 98% 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 (98% 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