Tides Today & Tomorrow in Rockport, MA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Rockport, MA.
Next low tide (tomorrow) : 9:54 am (0.6 ft)
Next high tide (tomorrow) : in 5h 31m at 3:51 am (8.7 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8441551
Common Questions About Tides

Rockport, MA Tides - Sep 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:309.410:4810.84:15-0.94:29-0.36:067:18Full Moon1Tue
2Wed11:239.811:4211.05:08-1.25:24-0.76:077:16Full Moon2Wed
3Thu12:1410.25:59-1.36:16-0.96:087:14Full Moon3Thu
4Fri12:3410.91:0210.36:48-1.37:08-1.06:107:12Waning Gibbous4Fri
5Sat1:2410.71:5010.47:35-1.17:59-0.96:117:11Waning Gibbous5Sat
6Sun2:1410.32:3810.28:22-0.78:49-0.66:127:09Waning Gibbous6Sun
7Mon3:049.73:279.99:10-0.29:41-0.26:137:07Waning Gibbous7Mon
8Tue3:569.14:189.510:000.310:350.26:147:05Third Quarter8Tue
9Wed4:528.65:129.110:520.911:310.66:157:04Third Quarter9Wed
10Thu5:508.16:108.811:471.36:167:02Third Quarter10Thu
11Fri6:527.87:108.612:310.912:451.66:177:00Third Quarter11Fri
12Sat7:537.78:088.51:311.01:441.76:186:58Waning Crescent12Sat
13Sun8:497.79:038.62:291.12:401.76:196:57Waning Crescent13Sun
14Mon9:407.99:518.73:211.03:311.56:206:55Waning Crescent14Mon
15Tue10:248.010:348.94:070.84:161.36:216:53Waning Crescent15Tue
16Wed11:038.211:139.04:470.74:571.16:226:51New Moon16Wed
17Thu11:388.511:499.15:240.65:350.86:236:50New Moon17Thu
18Fri12:108.75:590.56:120.66:256:48New Moon18Fri
19Sat12:249.112:439.06:340.46:500.36:266:46New Moon19Sat
20Sun1:009.21:179.27:090.37:290.16:276:44Waxing Crescent20Sun
21Mon1:389.21:559.57:470.38:120.06:286:42Waxing Crescent21Mon
22Tue2:209.12:379.68:280.48:58-0.16:296:41Waxing Crescent22Tue
23Wed3:078.93:259.69:140.59:50-0.16:306:39Waxing Crescent23Wed
24Thu3:598.74:189.610:050.710:470.06:316:37First Quarter24Thu
25Fri4:588.55:199.611:030.811:490.06:326:35First Quarter25Fri
26Sat6:038.46:259.612:060.96:336:33First Quarter26Sat
27Sun6:118.56:339.712:540.012:120.85:345:32Waxing Gibbous27Sun
28Mon7:188.87:3910.012:59-0.21:180.55:355:30Waxing Gibbous28Mon
29Tue8:199.28:4010.22:01-0.52:210.05:375:28Waxing Gibbous29Tue
30Wed9:159.79:3710.42:58-0.73:18-0.45:385:26Full Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441551)

Common Questions About Rockport, MA Tides

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What time does the tide turn (slack tide) in Rockport, MA today?

Slack tide in Rockport, MA is approximately 6:52 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 Rockport, MA?

Rockport, 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 Rockport, 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 Rockport, MA?

Tide predictions for Rockport, 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 Rockport, MA?

Tide data for Rockport, MA is sourced from NOAA Station #8441551. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8441551.

What is the moon phase in Rockport, MA tonight?

Tonight the moon over Rockport, MA is Waxing Crescent (27% illuminated). This places Rockport, 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