Tides Today & Tomorrow in Dennis Port, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Dennis Port, MA.
Next low tide (tomorrow) : in 4h 20m at 12:45 am (0.4 ft)
Next high tide (tomorrow) : 7:24 am (3.1 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 - Jul 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:533.74:283.59:490.010:070.35:098:18Waning Gibbous1Sat
2Sun4:393.75:133.610:340.010:590.35:108:18Third Quarter2Sun
3Mon5:303.66:023.711:220.111:540.25:108:18Third Quarter3Mon
4Tue6:253.56:543.812:140.15:118:18Third Quarter4Tue
5Wed7:233.47:483.812:520.11:080.25:128:17Third Quarter5Wed
6Thu8:243.38:463.91:520.12:050.25:128:17Waning Crescent6Thu
7Fri9:283.39:464.02:530.03:050.25:138:17Waning Crescent7Fri
8Sat10:313.410:464.13:55-0.14:050.25:148:16Waning Crescent8Sat
9Sun11:323.411:444.14:54-0.25:030.25:148:16New Moon9Sun
10Mon12:283.55:50-0.35:590.15:158:16New Moon10Mon
11Tue12:394.11:233.56:43-0.36:520.15:168:15New Moon11Tue
12Wed1:334.12:153.67:33-0.37:440.15:178:15Waxing Crescent12Wed
13Thu2:254.03:043.68:22-0.28:350.15:178:14Waxing Crescent13Thu
14Fri3:153.93:513.69:08-0.19:250.25:188:13Waxing Crescent14Fri
15Sat4:043.74:363.59:540.110:150.35:198:13Waxing Crescent15Sat
16Sun4:533.55:233.510:390.211:060.45:208:12First Quarter16Sun
17Mon5:433.36:103.411:270.411:590.55:218:12First Quarter17Mon
18Tue6:363.16:593.412:150.65:218:11First Quarter18Tue
19Wed7:293.07:493.312:540.61:050.75:228:10First Quarter19Wed
20Thu8:252.98:413.31:480.61:550.85:238:09Waxing Gibbous20Thu
21Fri9:222.99:333.42:440.62:480.85:248:09Waxing Gibbous21Fri
22Sat10:172.910:253.43:390.53:400.85:258:08Waxing Gibbous22Sat
23Sun11:083.011:123.54:290.44:300.75:268:07Waxing Gibbous23Sun
24Mon11:533.111:563.65:150.35:160.65:278:06Full Moon24Mon
25Tue12:353.25:570.26:000.55:288:05Full Moon25Tue
26Wed12:383.71:153.36:370.16:440.45:298:04Full Moon26Wed
27Thu1:203.81:553.47:170.07:270.25:308:03Full Moon27Thu
28Fri2:033.82:363.57:58-0.18:120.15:318:02Waning Gibbous28Fri
29Sat2:463.83:173.78:39-0.18:580.15:328:01Waning Gibbous29Sat
30Sun3:313.83:593.89:22-0.19:460.05:338:00Waning Gibbous30Sun
31Mon4:183.74:453.810:07-0.110:370.05:347:59Third Quarter31Mon
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 4:04 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 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