Tides Today & Tomorrow in Rockport, MA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Rockport, MA.
Next low tide : 9:38 pm (0.2 ft)
Next high tide : in 2h 05m at 3:25 pm (9.5 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 - May 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:519.92:288.88:18-0.58:270.75:377:41Waning Gibbous1Sat
2Sun2:379.93:188.79:07-0.59:180.85:367:42Waning Gibbous2Sun
3Mon3:299.94:148.610:01-0.410:140.95:347:43Third Quarter3Mon
4Tue4:289.85:168.610:59-0.311:170.95:337:44Third Quarter4Tue
5Wed5:329.66:218.712:01-0.25:327:46Third Quarter5Wed
6Thu6:409.57:269.012:230.81:04-0.25:307:47Third Quarter6Thu
7Fri7:479.68:289.41:300.52:06-0.25:297:48Waning Crescent7Fri
8Sat8:529.79:259.92:350.13:05-0.35:287:49Waning Crescent8Sat
9Sun9:529.810:1810.33:36-0.33:59-0.45:277:50Waning Crescent9Sun
10Mon10:479.811:0810.54:31-0.74:49-0.45:257:51New Moon10Mon
11Tue11:399.711:5410.65:23-0.95:37-0.25:247:52New Moon11Tue
12Wed12:279.56:11-1.06:220.05:237:53New Moon12Wed
13Thu12:3910.51:149.36:58-0.97:070.35:227:54New Moon13Thu
14Fri1:2210.31:598.97:43-0.77:510.75:217:55Waxing Crescent14Fri
15Sat2:059.92:448.68:28-0.38:361.05:207:56Waxing Crescent15Sat
16Sun2:499.53:318.39:140.19:231.45:197:58Waxing Crescent16Sun
17Mon3:369.14:208.010:010.410:131.75:187:59Waxing Crescent17Mon
18Tue4:268.75:137.810:510.811:061.95:178:00First Quarter18Tue
19Wed5:218.46:087.811:441.05:168:01First Quarter19Wed
20Thu6:198.27:037.812:032.012:381.25:158:02First Quarter20Thu
21Fri7:168.17:558.01:011.91:311.25:148:03First Quarter21Fri
22Sat8:128.18:438.31:581.72:211.25:138:04Waxing Gibbous22Sat
23Sun9:038.19:278.62:501.43:071.25:138:05Waxing Gibbous23Sun
24Mon9:508.210:078.93:371.03:501.15:128:05Waxing Gibbous24Mon
25Tue10:348.410:459.34:220.64:311.05:118:06Waxing Gibbous25Tue
26Wed11:158.511:239.65:040.25:110.95:108:07Full Moon26Wed
27Thu11:578.75:45-0.15:520.85:108:08Full Moon27Thu
28Fri12:0310.012:398.86:28-0.56:340.65:098:09Full Moon28Fri
29Sat12:4510.21:248.97:13-0.77:200.55:088:10Waning Gibbous29Sat
30Sun1:3110.42:129.08:00-0.88:090.55:088:11Waning Gibbous30Sun
31Mon2:2110.43:059.08:51-0.99:030.55:078:12Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441551)

Common Questions About Rockport, MA Tides

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

Slack tide in Rockport, MA is approximately 6:31 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 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