Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 5h 27m at 11:07 am (-0.4 ft)
Next high tide : 4:53 pm (6.9 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - May 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:497.67:286.41:011.21:480.35:367:44Third Quarter1Wed
2Thu7:487.68:276.72:021.12:450.25:357:46Third Quarter2Thu
3Fri8:497.59:267.03:040.83:410.15:347:47Waning Crescent3Fri
4Sat9:497.510:227.44:040.54:340.05:327:48Waning Crescent4Sat
5Sun10:477.511:157.95:010.15:24-0.15:317:49Waning Crescent5Sun
6Mon11:417.45:55-0.36:14-0.15:307:50New Moon6Mon
7Tue12:058.212:347.36:48-0.57:030.05:297:51New Moon7Tue
8Wed12:548.41:257.17:40-0.67:510.15:277:52New Moon8Wed
9Thu1:428.52:146.98:30-0.68:390.35:267:53New Moon9Thu
10Fri2:298.43:016.79:19-0.59:270.55:257:55Waxing Crescent10Fri
11Sat3:168.23:496.510:08-0.210:160.85:247:56Waxing Crescent11Sat
12Sun4:048.04:386.310:590.111:081.05:237:57Waxing Crescent12Sun
13Mon4:547.65:306.211:510.35:227:58First Quarter13Mon
14Tue5:467.36:226.112:021.212:430.65:217:59First Quarter14Tue
15Wed6:397.07:156.112:571.31:350.75:208:00First Quarter15Wed
16Thu7:336.88:086.11:521.42:270.95:198:01First Quarter16Thu
17Fri8:276.69:026.32:481.33:190.95:188:02Waxing Gibbous17Fri
18Sat9:226.49:526.53:431.24:080.95:178:03Waxing Gibbous18Sat
19Sun10:146.410:396.84:351.04:541.05:168:04Waxing Gibbous19Sun
20Mon11:026.311:237.05:240.95:391.05:158:05Waxing Gibbous20Mon
21Tue11:486.36:110.76:221.05:148:06Full Moon21Tue
22Wed12:057.312:326.36:570.57:051.15:138:07Full Moon22Wed
23Thu12:487.51:176.47:410.47:471.15:138:08Full Moon23Thu
24Fri1:307.72:016.48:250.38:281.15:128:09Full Moon24Fri
25Sat2:147.92:466.49:090.29:101.15:118:10Waning Gibbous25Sat
26Sun2:598.03:336.59:550.19:561.15:118:11Waning Gibbous26Sun
27Mon3:478.04:226.510:440.110:471.15:108:12Waning Gibbous27Mon
28Tue4:388.05:166.611:360.111:431.05:098:12Waning Gibbous28Tue
29Wed5:337.96:116.712:290.15:098:13Third Quarter29Wed
30Thu6:297.87:076.912:431.01:230.15:088:14Third Quarter30Thu
31Fri7:277.68:047.21:430.82:180.15:088:15Third Quarter31Fri
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 2:00 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 27% 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 Waxing Crescent (27% 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