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 3h 05m 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 - May 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:313.54:113.19:320.29:400.75:367:38Waning Gibbous1Sun
2Mon4:123.54:563.010:160.310:260.75:347:40Waning Gibbous2Mon
3Tue4:583.45:453.011:050.311:170.75:337:41Third Quarter3Tue
4Wed5:503.46:393.011:580.45:327:42Third Quarter4Wed
5Thu6:473.47:343.112:140.712:540.35:317:43Third Quarter5Thu
6Fri7:473.48:303.31:130.61:490.35:297:44Third Quarter6Fri
7Sat8:483.59:253.52:130.42:450.15:287:45Waning Crescent7Sat
8Sun9:483.610:183.83:120.23:400.05:277:46Waning Crescent8Sun
9Mon10:453.811:094.04:10-0.14:32-0.15:267:47Waning Crescent9Mon
10Tue11:403.911:594.25:05-0.35:23-0.25:257:48New Moon10Tue
11Wed12:333.95:58-0.56:13-0.25:247:49New Moon11Wed
12Thu12:484.31:273.96:50-0.67:03-0.25:237:50New Moon12Thu
13Fri1:394.42:213.87:42-0.67:54-0.15:227:51Waxing Crescent13Fri
14Sat2:314.33:153.78:34-0.58:460.15:217:52Waxing Crescent14Sat
15Sun3:244.14:103.59:27-0.49:400.25:207:53Waxing Crescent15Sun
16Mon4:193.95:083.410:23-0.110:370.45:197:54Waxing Crescent16Mon
17Tue5:173.76:083.311:210.111:370.65:187:55First Quarter17Tue
18Wed6:193.57:093.212:210.35:177:56First Quarter18Wed
19Thu7:223.48:083.212:400.61:200.45:167:57First Quarter19Thu
20Fri8:243.39:043.21:430.72:160.55:157:58First Quarter20Fri
21Sat9:243.29:543.32:430.63:080.55:147:59Waxing Gibbous21Sat
22Sun10:183.210:393.43:390.53:560.55:148:00Waxing Gibbous22Sun
23Mon11:063.211:193.54:280.44:390.55:138:01Waxing Gibbous23Mon
24Tue11:493.211:573.65:120.35:190.55:128:02Waxing Gibbous24Tue
25Wed12:303.25:520.25:570.55:128:03Full Moon25Wed
26Thu12:333.61:093.26:310.26:350.55:118:03Full Moon26Thu
27Fri1:103.61:493.27:090.17:140.65:108:04Full Moon27Fri
28Sat1:483.62:283.27:490.17:540.65:108:05Full Moon28Sat
29Sun2:273.63:093.18:290.18:340.65:098:06Waning Gibbous29Sun
30Mon3:073.63:503.19:100.29:170.65:098:07Waning Gibbous30Mon
31Tue3:503.64:343.19:540.210:040.65:088:08Waning Gibbous31Tue
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