Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 1h 36m at 1:41 am (0.8 ft)
Next high tide : 7:19 am (6.9 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 - Jun 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:098.42:416.59:00-0.39:060.65:078:16Waning Gibbous1Sun
2Mon2:568.23:286.49:48-0.19:560.75:078:17Waning Gibbous2Mon
3Tue3:437.94:166.410:370.110:460.95:068:17Waning Gibbous3Tue
4Wed4:327.65:056.311:260.311:391.15:068:18Waning Gibbous4Wed
5Thu5:227.35:566.412:150.55:068:19Third Quarter5Thu
6Fri6:127.06:466.412:321.21:040.65:058:19Third Quarter6Fri
7Sat7:036.77:366.51:261.21:540.85:058:20Third Quarter7Sat
8Sun7:556.58:276.62:201.22:440.95:058:21Third Quarter8Sun
9Mon8:496.29:186.83:151.13:341.05:058:21Waning Crescent9Mon
10Tue9:426.110:077.04:081.04:221.15:058:22Waning Crescent10Tue
11Wed10:336.110:537.24:580.85:081.15:048:22Waning Crescent11Wed
12Thu11:216.011:397.45:460.75:541.25:048:23Waning Crescent12Thu
13Fri12:076.16:340.56:391.25:048:23New Moon13Fri
14Sat12:247.612:546.27:200.47:241.15:048:24New Moon14Sat
15Sun1:097.81:406.38:060.38:081.05:048:24New Moon15Sun
16Mon1:558.02:266.48:510.18:530.95:048:24New Moon16Mon
17Tue2:418.13:136.69:360.09:390.85:058:25Waxing Crescent17Tue
18Wed3:298.24:026.810:23-0.110:300.75:058:25Waxing Crescent18Wed
19Thu4:198.14:547.011:12-0.111:250.75:058:25Waxing Crescent19Thu
20Fri5:128.05:477.212:03-0.15:058:26First Quarter20Fri
21Sat6:077.76:427.412:230.612:540.05:058:26First Quarter21Sat
22Sun7:037.47:377.61:220.51:470.15:068:26First Quarter22Sun
23Mon8:017.18:337.82:220.32:420.25:068:26Waxing Gibbous23Mon
24Tue9:006.89:308.03:220.23:370.35:068:26Waxing Gibbous24Tue
25Wed10:006.510:268.14:200.04:310.45:078:26Waxing Gibbous25Wed
26Thu10:576.411:198.15:16-0.15:240.55:078:26Waxing Gibbous26Thu
27Fri11:516.36:10-0.16:160.55:078:26Full Moon27Fri
28Sat12:108.112:436.37:02-0.17:070.65:088:26Full Moon28Sat
29Sun1:008.11:326.37:52-0.17:570.65:088:26Full Moon29Sun
30Mon1:488.02:196.38:390.08:450.75:098:26Full Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440369)

Common Questions About Merrimacport, MA Tides

Show All
What time does the tide turn (slack tide) in Merrimacport, MA today?

Slack tide in Merrimacport, MA is approximately 4:30 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