Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 11:51 pm (1.1 ft)
Next high tide : in 1h 21m at 5:16 pm (6.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jul 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:147.93:456.410:060.010:140.85:098:26Waxing Crescent1Thu
2Fri4:007.74:336.410:530.211:050.95:108:26Waxing Crescent2Fri
3Sat4:487.45:216.411:410.411:571.05:118:25Waxing Crescent3Sat
4Sun5:377.16:106.512:280.55:118:25First Quarter4Sun
5Mon6:276.86:596.612:491.11:160.75:128:25First Quarter5Mon
6Tue7:176.57:486.71:431.12:050.95:138:24First Quarter6Tue
7Wed8:106.28:396.82:371.12:551.05:138:24First Quarter7Wed
8Thu9:036.09:306.93:311.03:461.15:148:24Waxing Gibbous8Thu
9Fri9:575.910:197.14:240.94:341.25:158:23Waxing Gibbous9Fri
10Sat10:485.911:077.35:140.85:221.25:158:23Waxing Gibbous10Sat
11Sun11:365.911:547.56:030.66:081.25:168:22Waxing Gibbous11Sun
12Mon12:246.06:500.56:541.15:178:22Full Moon12Mon
13Tue12:407.71:116.27:370.37:401.05:188:21Full Moon13Tue
14Wed1:267.91:576.48:220.18:250.85:198:20Full Moon14Wed
15Thu2:138.12:446.69:070.09:110.75:208:20Waning Gibbous15Thu
16Fri3:008.23:316.89:52-0.19:590.65:208:19Waning Gibbous16Fri
17Sat3:488.24:217.110:39-0.210:520.55:218:18Waning Gibbous17Sat
18Sun4:398.05:127.311:28-0.211:480.45:228:18Waning Gibbous18Sun
19Mon5:337.86:067.512:18-0.15:238:17Third Quarter19Mon
20Tue6:287.47:007.712:460.31:100.15:248:16Third Quarter20Tue
21Wed7:247.07:557.81:450.32:040.25:258:15Third Quarter21Wed
22Thu8:236.78:537.92:450.23:010.45:268:14Waning Crescent22Thu
23Fri9:246.49:517.93:450.13:570.55:278:13Waning Crescent23Fri
24Sat10:246.310:478.04:430.04:520.55:288:12Waning Crescent24Sat
25Sun11:206.211:418.05:380.05:450.65:298:11Waning Crescent25Sun
26Mon12:136.26:31-0.16:380.65:308:10New Moon26Mon
27Tue12:327.91:036.27:220.07:280.65:318:09New Moon27Tue
28Wed1:207.91:506.38:090.08:160.65:328:08New Moon28Wed
29Thu2:067.82:346.48:540.19:030.65:338:07Waxing Crescent29Thu
30Fri2:507.63:176.59:380.29:490.75:348:06Waxing Crescent30Fri
31Sat3:337.44:006.610:210.310:360.85:358:05Waxing Crescent31Sat
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 8:33 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 72% 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 Waning Gibbous (72% 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