Tides Today & Tomorrow in Rockport, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Rockport, MA.
Next low tide (tomorrow) : 1:22 am (1.3 ft)
Next high tide : in 4h 58m at 6:55 pm (8.4 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 - Jan 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:179.56:528.412:42-0.17:124:18Waxing Gibbous1Thu
2Fri7:169.97:568.612:550.21:44-0.57:124:19Waxing Gibbous2Fri
3Sat8:1610.38:568.81:550.02:43-1.07:124:20Waxing Gibbous3Sat
4Sun9:1310.79:549.22:53-0.23:39-1.47:124:21Full Moon4Sun
5Mon10:0811.010:489.43:49-0.54:33-1.77:124:22Full Moon5Mon
6Tue11:0211.111:409.74:43-0.75:25-1.87:124:23Full Moon6Tue
7Wed11:5411.05:37-0.86:15-1.87:124:24Waning Gibbous7Wed
8Thu12:319.812:4510.76:29-0.77:05-1.67:124:25Waning Gibbous8Thu
9Fri1:219.71:3710.37:22-0.67:54-1.27:124:26Waning Gibbous9Fri
10Sat2:129.62:299.78:15-0.38:43-0.77:124:27Waning Gibbous10Sat
11Sun3:039.43:239.19:090.09:33-0.27:114:28Third Quarter11Sun
12Mon3:569.24:198.510:050.310:250.37:114:29Third Quarter12Mon
13Tue4:518.95:188.011:030.611:190.87:114:30Third Quarter13Tue
14Wed5:468.76:187.612:030.87:104:31Third Quarter14Wed
15Thu6:428.67:177.512:141.11:010.97:104:32Waning Crescent15Thu
16Fri7:368.68:137.41:091.31:570.87:104:34Waning Crescent16Fri
17Sat8:268.69:037.42:011.42:470.77:094:35Waning Crescent17Sat
18Sun9:118.79:477.52:491.43:320.57:094:36Waning Crescent18Sun
19Mon9:538.810:277.73:321.34:120.47:084:37New Moon19Mon
20Tue10:309.011:037.84:131.14:500.27:074:38New Moon20Tue
21Wed11:069.111:378.14:511.05:260.07:074:40New Moon21Wed
22Thu11:429.25:300.86:01-0.17:064:41New Moon22Thu
23Fri12:128.312:199.36:090.66:38-0.27:054:42Waxing Crescent23Fri
24Sat12:488.612:589.36:500.47:17-0.37:054:43Waxing Crescent24Sat
25Sun1:278.91:429.27:350.27:59-0.37:044:45Waxing Crescent25Sun
26Mon2:109.12:299.08:230.18:45-0.27:034:46Waxing Crescent26Mon
27Tue2:589.33:228.79:160.09:350.07:024:47First Quarter27Tue
28Wed3:529.44:218.510:130.010:310.27:014:49First Quarter28Wed
29Thu4:509.55:268.311:16-0.111:310.37:004:50First Quarter29Thu
30Fri5:539.66:338.312:21-0.26:594:51Waxing Gibbous30Fri
31Sat6:589.87:408.412:340.31:26-0.56:584:53Waxing Gibbous31Sat
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 10:08 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 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