Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Merrimacport, MA.
Next low tide : in 3h 36m at 6:36 pm (1.2 ft)
Next high tide (tomorrow) : 12:22 am (7.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:518.13:216.69:42-0.29:510.65:377:44Waning Gibbous1Sat
2Sun3:367.94:076.510:290.010:390.95:367:45Waning Gibbous2Sun
3Mon4:237.64:556.311:190.311:301.15:357:46Waning Gibbous3Mon
4Tue5:137.45:466.212:090.55:337:47Third Quarter4Tue
5Wed6:047.16:376.212:231.21:000.75:327:48Third Quarter5Wed
6Thu6:566.97:296.21:171.31:520.85:317:49Third Quarter6Thu
7Fri7:496.78:226.32:121.32:440.95:297:51Third Quarter7Fri
8Sat8:436.59:146.53:071.23:350.95:287:52Waning Crescent8Sat
9Sun9:376.510:056.74:011.14:230.95:277:53Waning Crescent9Sun
10Mon10:286.510:517.04:510.95:090.95:267:54Waning Crescent10Mon
11Tue11:166.511:367.35:390.75:540.95:257:55Waning Crescent11Tue
12Wed12:026.56:260.56:380.95:247:56New Moon12Wed
13Thu12:207.612:486.67:130.37:210.85:227:57New Moon13Thu
14Fri1:057.91:346.77:580.18:050.85:217:58New Moon14Fri
15Sat1:508.12:216.88:44-0.18:490.75:207:59New Moon15Sat
16Sun2:368.33:086.89:30-0.29:350.75:198:00Waxing Crescent16Sun
17Mon3:248.33:586.910:19-0.210:260.75:188:01Waxing Crescent17Mon
18Tue4:158.34:516.911:11-0.211:210.75:178:02Waxing Crescent18Tue
19Wed5:108.25:477.012:05-0.25:178:03First Quarter19Wed
20Thu6:068.06:437.112:200.612:59-0.15:168:04First Quarter20Thu
21Fri7:047.77:407.31:200.61:54-0.15:158:05First Quarter21Fri
22Sat8:027.58:387.52:210.42:500.05:148:06First Quarter22Sat
23Sun9:037.29:357.73:210.33:440.15:138:07Waxing Gibbous23Sun
24Mon10:027.010:307.94:190.14:370.15:128:08Waxing Gibbous24Mon
25Tue10:576.811:218.05:14-0.15:280.25:128:09Waxing Gibbous25Tue
26Wed11:506.76:06-0.26:170.35:118:10Full Moon26Wed
27Thu12:098.112:396.66:57-0.27:060.55:108:11Full Moon27Thu
28Fri12:568.11:276.57:46-0.27:530.65:108:12Full Moon28Fri
29Sat1:428.02:126.48:33-0.18:400.75:098:13Full Moon29Sat
30Sun2:267.92:556.49:180.19:250.95:088:14Waning Gibbous30Sun
31Mon3:107.83:406.410:040.210:121.05:088:14Waning Gibbous31Mon
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 9:29 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 spring phase. Tonight's moon is 98% 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 maximum.

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 Full Moon (98% illuminated). This places Merrimacport, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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