Tides Today & Tomorrow in Dennis Port, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Dennis Port, MA.
Next low tide (tomorrow) : 12:45 am (0.4 ft)
Next high tide : in 5h 38m at 6:51 pm (3.5 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:24 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447525
Common Questions About Tides

Dennis Port, MA Tides - Nov 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:363.49:003.41:470.32:160.46:124:35Waning Crescent1Wed
2Thu9:273.59:543.42:420.33:120.36:144:34Waning Crescent2Thu
3Fri10:123.610:403.43:300.44:010.26:154:32Waning Crescent3Fri
4Sat10:513.611:213.34:120.44:430.16:164:31New Moon4Sat
5Sun11:283.74:510.45:220.16:174:30New Moon5Sun
6Mon12:003.312:043.75:280.46:010.16:184:29New Moon6Mon
7Tue12:393.312:413.66:060.56:390.16:204:28New Moon7Tue
8Wed1:183.21:193.66:450.57:180.26:214:27Waxing Crescent8Wed
9Thu1:573.11:583.57:240.67:590.26:224:26Waxing Crescent9Thu
10Fri2:383.12:393.58:050.68:410.36:234:25Waxing Crescent10Fri
11Sat3:213.03:233.48:490.79:250.46:254:24Waxing Crescent11Sat
12Sun4:063.04:103.49:360.710:130.46:264:23First Quarter12Sun
13Mon4:543.05:023.310:280.711:030.46:274:22First Quarter13Mon
14Tue5:453.15:563.311:230.711:540.46:284:21First Quarter14Tue
15Wed6:353.26:523.312:190.56:294:20First Quarter15Wed
16Thu7:263.47:493.412:460.31:160.36:314:19Waxing Gibbous16Thu
17Fri8:173.68:463.51:380.22:120.16:324:18Waxing Gibbous17Fri
18Sat9:093.99:413.62:300.13:08-0.16:334:17Waxing Gibbous18Sat
19Sun9:594.110:353.73:220.04:01-0.46:344:17Full Moon19Sun
20Mon10:494.311:273.74:14-0.14:53-0.56:354:16Full Moon20Mon
21Tue11:404.45:05-0.25:46-0.66:374:15Full Moon21Tue
22Wed12:213.712:324.45:56-0.26:38-0.66:384:15Waning Gibbous22Wed
23Thu1:163.71:274.36:49-0.17:32-0.56:394:14Waning Gibbous23Thu
24Fri2:113.62:234.27:440.08:26-0.46:404:14Waning Gibbous24Fri
25Sat3:083.63:203.98:400.19:21-0.26:414:13Waning Gibbous25Sat
26Sun4:063.54:203.79:390.210:190.06:424:13Third Quarter26Sun
27Mon5:073.45:233.510:410.411:180.26:434:12Third Quarter27Mon
28Tue6:073.46:273.311:450.46:454:12Third Quarter28Tue
29Wed7:053.47:303.212:160.312:480.46:464:11Waning Crescent29Wed
30Thu8:003.48:303.11:110.41:490.46:474:11Waning Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447525)

Common Questions About Dennis Port, MA Tides

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

Slack tide in Dennis Port, MA is approximately 9:48 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 Dennis Port, MA?

Dennis Port, MA is currently in a neap phase. Tonight's moon is 52% 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 minimum.

What datum are Dennis Port, 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 Dennis Port, MA?

Tide predictions for Dennis Port, 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 Dennis Port, MA?

Tide data for Dennis Port, MA is sourced from NOAA Station #8447525. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447525.

What is the moon phase in Dennis Port, MA tonight?

Tonight the moon over Dennis Port, MA is First Quarter (52% illuminated). This places Dennis Port, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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