Tides Today & Tomorrow in Rockport, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Rockport, MA.
Next low tide : 12:29 pm (1.9 ft)
Next high tide : in 20m at 6:39 am (7.3 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8441551
Common Questions About Tides

Rockport, MA Tides - Oct 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:409.41:5410.37:440.08:18-0.86:396:24Waning Gibbous1Fri
2Sat2:279.32:4310.38:310.19:09-0.76:406:23Waning Gibbous2Sat
3Sun3:209.13:3810.29:240.210:06-0.56:416:21Third Quarter3Sun
4Mon4:198.94:3910.010:220.411:07-0.46:426:19Third Quarter4Mon
5Tue5:238.85:459.811:260.66:436:17Third Quarter5Tue
6Wed6:318.86:549.712:11-0.212:330.66:456:16Third Quarter6Wed
7Thu7:389.08:029.71:17-0.21:410.46:466:14Waning Crescent7Thu
8Fri8:419.49:069.82:20-0.22:460.16:476:12Waning Crescent8Fri
9Sat9:389.710:049.93:18-0.33:45-0.36:486:10Waning Crescent9Sat
10Sun10:3010.010:569.84:11-0.44:39-0.56:496:09New Moon10Sun
11Mon11:1710.211:449.75:00-0.35:28-0.66:506:07New Moon11Mon
12Tue12:0110.25:44-0.26:13-0.66:526:05New Moon12Tue
13Wed12:299.512:4210.06:260.16:56-0.56:536:04New Moon13Wed
14Thu1:119.21:219.87:070.47:37-0.36:546:02Waxing Crescent14Thu
15Fri1:528.82:009.57:470.78:190.06:556:01Waxing Crescent15Fri
16Sat2:338.52:419.28:281.09:020.36:565:59Waxing Crescent16Sat
17Sun3:168.23:258.99:121.39:480.76:575:57Waxing Crescent17Sun
18Mon4:037.94:138.610:001.610:380.96:595:56First Quarter18Mon
19Tue4:557.75:078.310:521.811:311.27:005:54First Quarter19Tue
20Wed5:517.66:058.111:481.97:015:53First Quarter20Wed
21Thu6:487.77:038.112:261.312:471.97:025:51First Quarter21Thu
22Fri7:427.98:008.21:211.31:441.67:035:50Waxing Gibbous22Fri
23Sat8:328.28:518.42:131.12:371.37:055:48Waxing Gibbous23Sat
24Sun9:178.69:398.63:001.03:260.87:065:47Waxing Gibbous24Sun
25Mon9:599.110:238.83:440.74:110.37:075:45Waxing Gibbous25Mon
26Tue10:399.511:079.14:260.54:55-0.27:085:44Full Moon26Tue
27Wed11:2010.011:509.35:080.25:39-0.67:105:42Full Moon27Wed
28Thu12:0210.45:500.06:24-1.07:115:41Full Moon28Thu
29Fri12:359.412:4710.76:34-0.17:11-1.27:125:39Waning Gibbous29Fri
30Sat1:229.51:3410.87:22-0.28:01-1.37:135:38Waning Gibbous30Sat
31Sun1:129.51:2610.77:13-0.17:54-1.26:154:37Waning Gibbous31Sun
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 9:34 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 65% 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 First Quarter (65% 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