Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 12:20 am (0.5 ft)
Next high tide : in 2h 25m at 5:47 pm (7.0 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - May 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:186.611:426.85:340.75:570.65:377:44Waning Crescent1Sat
2Sun12:036.66:220.66:410.75:367:45New Moon2Sun
3Mon12:237.012:456.67:070.57:230.75:347:46New Moon3Mon
4Tue1:037.21:276.67:510.48:040.85:337:47New Moon4Tue
5Wed1:437.42:096.68:330.38:440.95:327:49New Moon5Wed
6Thu2:237.52:506.69:150.39:241.05:307:50Waxing Crescent6Thu
7Fri3:057.63:346.69:580.310:051.15:297:51Waxing Crescent7Fri
8Sat3:487.64:206.610:430.410:501.25:287:52Waxing Crescent8Sat
9Sun4:357.65:096.511:320.411:401.35:277:53Waxing Crescent9Sun
10Mon5:257.66:016.512:230.45:267:54First Quarter10Mon
11Tue6:187.66:556.612:341.31:160.45:247:55First Quarter11Tue
12Wed7:147.67:516.71:311.22:120.35:237:56First Quarter12Wed
13Thu8:117.58:497.02:311.03:070.25:227:57First Quarter13Thu
14Fri9:117.69:467.43:300.74:010.05:217:58Waxing Gibbous14Fri
15Sat10:097.610:407.84:270.34:53-0.15:207:59Waxing Gibbous15Sat
16Sun11:067.611:328.25:22-0.15:44-0.25:198:01Waxing Gibbous16Sun
17Mon12:007.66:16-0.56:34-0.35:188:02Full Moon17Mon
18Tue12:248.512:537.57:09-0.77:25-0.25:178:03Full Moon18Tue
19Wed1:148.71:457.48:02-0.98:14-0.15:168:04Full Moon19Wed
20Thu2:048.82:357.38:52-0.99:040.05:158:05Waning Gibbous20Thu
21Fri2:538.73:257.19:43-0.79:540.25:158:06Waning Gibbous21Fri
22Sat3:428.54:166.810:34-0.510:460.55:148:07Waning Gibbous22Sat
23Sun4:338.15:086.611:26-0.211:400.75:138:08Waning Gibbous23Sun
24Mon5:257.86:016.512:190.15:128:08Third Quarter24Mon
25Tue6:187.46:546.412:350.91:120.35:128:09Third Quarter25Tue
26Wed7:127.17:486.41:311.02:040.55:118:10Third Quarter26Wed
27Thu8:066.88:416.52:261.12:570.65:108:11Third Quarter27Thu
28Fri9:016.69:346.63:221.13:480.75:108:12Waning Crescent28Fri
29Sat9:546.510:226.84:150.94:360.75:098:13Waning Crescent29Sat
30Sun10:446.411:077.05:050.85:220.85:088:14Waning Crescent30Sun
31Mon11:306.411:507.25:530.76:070.95:088:15Waning Crescent31Mon
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 9:03 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 37% 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 First Quarter (37% 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