Tides Today & Tomorrow in Dennis Port, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Dennis Port, MA.
Next low tide : 11:26 am (0.5 ft)
Next high tide : in 59m at 5:51 am (3.2 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 5:53 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8447525
Common Questions About Tides

Dennis Port, MA Tides - Sep 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:113.44:303.49:530.410:180.46:057:15Waxing Crescent1Thu
2Fri4:543.25:113.410:350.511:040.56:067:14First Quarter2Fri
3Sat5:403.15:573.311:200.611:550.56:077:12First Quarter3Sat
4Sun6:313.06:463.312:080.76:087:10First Quarter4Sun
5Mon7:252.97:383.312:480.61:000.86:097:09First Quarter5Mon
6Tue8:212.98:343.41:430.51:550.76:107:07Waxing Gibbous6Tue
7Wed9:183.09:303.52:390.42:510.76:117:05Waxing Gibbous7Wed
8Thu10:143.110:253.73:350.33:470.56:127:04Waxing Gibbous8Thu
9Fri11:053.311:183.94:280.14:410.36:137:02Waxing Gibbous9Fri
10Sat11:543.65:18-0.15:320.06:147:00Full Moon10Sat
11Sun12:084.112:413.86:06-0.36:23-0.26:156:58Full Moon11Sun
12Mon12:594.21:284.06:53-0.47:14-0.46:166:57Full Moon12Mon
13Tue1:504.22:174.17:41-0.48:05-0.46:176:55Waning Gibbous13Tue
14Wed2:424.13:064.28:29-0.48:57-0.46:186:53Waning Gibbous14Wed
15Thu3:354.03:574.19:18-0.39:51-0.46:196:51Waning Gibbous15Thu
16Fri4:293.84:504.010:10-0.110:48-0.26:206:50Third Quarter16Fri
17Sat5:283.65:473.911:060.111:49-0.16:216:48Third Quarter17Sat
18Sun6:313.46:493.712:060.36:226:46Third Quarter18Sun
19Mon7:373.37:543.612:520.11:080.56:236:45Third Quarter19Mon
20Tue8:443.29:003.61:570.22:110.56:246:43Waning Crescent20Tue
21Wed9:493.210:033.63:020.23:150.56:256:41Waning Crescent21Wed
22Thu10:463.310:593.64:020.24:130.56:266:39Waning Crescent22Thu
23Fri11:343.411:473.64:540.25:040.46:286:38Waning Crescent23Fri
24Sat12:163.45:370.25:480.36:296:36New Moon24Sat
25Sun12:293.611:53 AM3.55:150.25:290.25:305:34New Moon25Sun
26Mon12:083.612:283.55:520.26:080.25:315:32New Moon26Mon
27Tue12:463.61:033.56:270.26:460.25:325:31New Moon27Tue
28Wed1:233.51:383.57:030.37:250.25:335:29Waxing Crescent28Wed
29Thu2:013.42:143.57:400.48:040.35:345:27Waxing Crescent29Thu
30Fri2:413.32:513.58:180.58:450.35:355:26Waxing Crescent30Fri
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 8:38 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 46% 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 (46% 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