Tides Today & Tomorrow in Dennis Port, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Dennis Port, MA.
Next low tide : 12:18 pm (0.7 ft)
Next high tide : in 1h 02m at 6:46 am (3.0 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447525
Common Questions About Tides

Dennis Port, MA Tides - Mar 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:423.45:143.110:350.210:520.46:155:30First Quarter1Sun
2Mon5:343.36:113.011:310.411:460.66:145:31First Quarter2Mon
3Tue6:293.27:092.912:290.56:125:32First Quarter3Tue
4Wed7:263.28:092.812:410.71:270.56:105:33Waxing Gibbous4Wed
5Thu8:243.29:062.91:380.72:240.46:095:35Waxing Gibbous5Thu
6Fri9:193.39:563.02:330.63:160.36:075:36Waxing Gibbous6Fri
7Sat10:073.410:403.13:230.54:010.26:055:37Waxing Gibbous7Sat
8Sun10:503.511:193.34:090.44:410.16:045:38Full Moon8Sun
9Mon11:303.611:573.44:510.25:200.06:025:39Full Moon9Mon
10Tue12:093.75:320.15:58-0.16:015:40Full Moon10Tue
11Wed12:343.512:483.76:120.06:36-0.15:595:41Full Moon11Wed
12Thu1:113.61:283.76:53-0.17:15-0.25:575:43Waning Gibbous12Thu
13Fri1:493.72:103.77:36-0.27:56-0.15:565:44Waning Gibbous13Fri
14Sat2:293.72:543.68:20-0.28:39-0.15:545:45Waning Gibbous14Sat
15Sun3:123.83:423.59:08-0.29:270.05:525:46Waning Gibbous15Sun
16Mon4:013.74:353.410:01-0.110:200.15:505:47Third Quarter16Mon
17Tue4:553.75:353.310:590.011:190.25:495:48Third Quarter17Tue
18Wed5:553.66:393.212:010.05:475:49Third Quarter18Wed
19Thu6:593.67:463.212:210.31:050.05:455:50Waning Crescent19Thu
20Fri8:073.78:533.31:250.32:100.05:445:52Waning Crescent20Fri
21Sat9:133.79:543.52:300.13:11-0.15:425:53Waning Crescent21Sat
22Sun10:133.810:493.63:310.04:07-0.35:405:54Waning Crescent22Sun
23Mon11:083.911:383.84:27-0.24:58-0.35:395:55New Moon23Mon
24Tue11:593.95:18-0.35:45-0.35:375:56New Moon24Tue
25Wed12:253.812:473.96:07-0.36:30-0.35:355:57New Moon25Wed
26Thu1:093.91:333.86:54-0.37:14-0.25:335:58Waxing Crescent26Thu
27Fri1:523.82:193.77:39-0.27:570.05:325:59Waxing Crescent27Fri
28Sat2:343.73:033.58:24-0.18:400.25:306:00Waxing Crescent28Sat
29Sun3:173.63:503.39:100.19:250.45:286:01Waxing Crescent29Sun
30Mon4:023.44:393.19:590.210:140.55:276:03First Quarter30Mon
31Tue4:513.35:323.010:520.411:060.75:256:04First Quarter31Tue
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 9:32 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 55% 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 (55% 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