Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide (tomorrow) : in 3h 18m at 2:40 am (0.6 ft)
Next high tide (tomorrow) : 8:15 am (6.7 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Feb 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:557.05:176.311:420.411:590.56:574:57First Quarter1Mon
2Tue5:446.96:086.012:350.66:564:58First Quarter2Tue
3Wed6:356.87:015.712:500.81:300.76:554:59First Quarter3Wed
4Thu7:286.77:565.51:440.92:250.86:545:01Waxing Gibbous4Thu
5Fri8:226.78:515.52:371.03:190.76:535:02Waxing Gibbous5Fri
6Sat9:166.89:445.63:301.04:100.66:515:03Waxing Gibbous6Sat
7Sun10:056.910:325.74:190.94:580.56:505:05Waxing Gibbous7Sun
8Mon10:527.111:186.05:070.85:450.36:495:06Full Moon8Mon
9Tue11:377.25:530.66:290.26:485:07Full Moon9Tue
10Wed12:036.212:217.46:380.57:110.16:465:09Full Moon10Wed
11Thu12:466.61:047.57:220.37:510.06:455:10Full Moon11Thu
12Fri1:296.91:487.58:050.28:32-0.16:445:11Waning Gibbous12Fri
13Sat2:127.22:337.58:500.19:14-0.16:425:13Waning Gibbous13Sat
14Sun2:587.53:217.39:380.09:590.06:415:14Waning Gibbous14Sun
15Mon3:467.64:127.110:310.010:480.26:405:15Waning Gibbous15Mon
16Tue4:387.75:066.811:270.011:420.36:385:17Third Quarter16Tue
17Wed5:337.76:036.512:260.06:375:18Third Quarter17Wed
18Thu6:307.77:036.312:400.41:270.06:355:19Third Quarter18Thu
19Fri7:307.78:056.21:400.52:280.06:345:20Waning Crescent19Fri
20Sat8:327.79:086.22:410.43:27-0.26:325:22Waning Crescent20Sat
21Sun9:337.710:066.43:400.24:22-0.36:315:23Waning Crescent21Sun
22Mon10:297.811:006.64:360.05:15-0.46:295:24New Moon22Mon
23Tue11:227.811:516.95:29-0.16:05-0.56:285:26New Moon23Tue
24Wed12:127.76:21-0.36:52-0.56:265:27New Moon24Wed
25Thu12:387.112:587.67:10-0.37:37-0.46:255:28New Moon25Thu
26Fri1:227.31:427.47:57-0.38:20-0.26:235:29Waxing Crescent26Fri
27Sat2:047.32:257.18:43-0.29:030.06:215:31Waxing Crescent27Sat
28Sun2:477.33:096.89:300.09:480.36:205:32Waxing Crescent28Sun
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 5:27 am — 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 neap phase. Tonight's moon is 41% 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 minimum.

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 Third Quarter (41% illuminated). This places Merrimacport, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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