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 17m 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 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:598.35:357.111:54-0.45:367:45First Quarter1Thu
2Fri5:568.26:327.012:100.512:51-0.35:357:46First Quarter2Fri
3Sat6:538.07:307.01:090.51:48-0.25:347:47First Quarter3Sat
4Sun7:537.88:307.02:090.52:46-0.25:327:48First Quarter4Sun
5Mon8:547.69:307.23:100.43:43-0.25:317:49Waxing Gibbous5Mon
6Tue9:547.410:277.44:090.24:37-0.25:307:50Waxing Gibbous6Tue
7Wed10:507.311:197.65:040.05:28-0.15:297:51Waxing Gibbous7Wed
8Thu11:437.25:57-0.16:170.05:277:52Full Moon8Thu
9Fri12:077.712:327.16:47-0.27:040.15:267:54Full Moon9Fri
10Sat12:527.81:187.07:36-0.27:500.25:257:55Full Moon10Sat
11Sun1:367.92:026.98:22-0.28:350.45:247:56Full Moon11Sun
12Mon2:187.92:456.89:07-0.19:190.65:237:57Waning Gibbous12Mon
13Tue3:007.83:286.79:520.010:030.85:227:58Waning Gibbous13Tue
14Wed3:437.74:136.510:380.210:501.05:217:59Waning Gibbous14Wed
15Thu4:297.55:016.511:260.411:401.25:208:00Waning Gibbous15Thu
16Fri5:187.35:516.412:160.55:198:01Third Quarter16Fri
17Sat6:087.26:416.412:311.31:060.65:188:02Third Quarter17Sat
18Sun6:597.07:336.41:241.31:570.75:178:03Third Quarter18Sun
19Mon7:526.98:266.52:181.32:490.85:168:04Third Quarter19Mon
20Tue8:466.89:186.73:131.23:400.75:158:05Waning Crescent20Tue
21Wed9:406.810:097.04:061.04:290.75:148:06Waning Crescent21Wed
22Thu10:316.910:577.44:560.75:160.65:138:07Waning Crescent22Thu
23Fri11:216.911:447.75:450.46:020.55:138:08Waning Crescent23Fri
24Sat12:107.16:340.16:470.45:128:09New Moon24Sat
25Sun12:318.112:597.27:22-0.27:340.35:118:10New Moon25Sun
26Mon1:198.41:497.38:10-0.48:200.25:118:11New Moon26Mon
27Tue2:078.62:387.38:59-0.69:090.25:108:12Waxing Crescent27Tue
28Wed2:568.73:297.39:48-0.79:590.25:098:12Waxing Crescent28Wed
29Thu3:478.74:227.310:41-0.710:540.35:098:13Waxing Crescent29Thu
30Fri4:418.65:177.311:35-0.611:510.35:088:14Waxing Crescent30Fri
31Sat5:378.36:147.212:30-0.55:088:15First Quarter31Sat
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