Tides Today & Tomorrow in Cotuit, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Cotuit, MA.
Next low tide (tomorrow) : 2:11 am (0.4 ft)
Next high tide : in 5h 17m at 8:10 pm (2.4 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Cotuit, MA Tides - Sep 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:492.49:082.72:010.12:160.36:077:15Waning Crescent1Sat
2Sun9:562.410:122.73:060.13:190.36:087:14Waning Crescent2Sun
3Mon10:572.411:112.74:080.14:190.36:097:12Waning Crescent3Mon
4Tue11:512.45:040.05:140.26:107:10New Moon4Tue
5Wed12:022.712:372.55:520.06:020.26:117:09New Moon5Wed
6Thu12:492.71:202.56:350.06:470.26:127:07New Moon6Thu
7Fri1:322.71:592.57:150.07:290.16:137:05New Moon7Fri
8Sat2:122.72:362.57:540.18:100.16:147:04Waxing Crescent8Sat
9Sun2:522.63:132.58:310.18:500.26:157:02Waxing Crescent9Sun
10Mon3:322.53:502.59:090.29:310.26:167:00Waxing Crescent10Mon
11Tue4:132.44:292.59:480.310:140.36:176:59Waxing Crescent11Tue
12Wed4:552.35:102.410:300.411:000.36:186:57Waxing Crescent12Wed
13Thu5:412.25:562.411:140.511:490.46:196:55First Quarter13Thu
14Fri6:322.26:452.412:030.56:206:53First Quarter14Fri
15Sat7:262.17:382.412:420.412:560.66:216:52First Quarter15Sat
16Sun8:212.18:342.41:370.41:500.66:226:50First Quarter16Sun
17Mon9:182.29:302.52:330.32:460.56:236:48Waxing Gibbous17Mon
18Tue10:132.310:252.63:280.23:420.46:246:46Waxing Gibbous18Tue
19Wed11:042.411:172.84:210.14:350.26:256:45Waxing Gibbous19Wed
20Thu11:512.65:100.05:260.06:266:43Full Moon20Thu
21Fri12:072.912:372.85:57-0.26:16-0.16:276:41Full Moon21Fri
22Sat12:563.01:242.96:44-0.37:06-0.36:286:40Full Moon22Sat
23Sun1:463.02:113.07:31-0.37:56-0.46:306:38Waning Gibbous23Sun
24Mon2:383.03:003.08:19-0.38:48-0.46:316:36Waning Gibbous24Mon
25Tue3:302.93:503.09:08-0.29:41-0.36:326:34Waning Gibbous25Tue
26Wed4:242.84:433.09:59-0.110:37-0.26:336:33Waning Gibbous26Wed
27Thu5:212.65:402.910:550.111:36-0.16:346:31Third Quarter27Thu
28Fri6:242.56:422.711:540.26:356:29Third Quarter28Fri
29Sat7:302.47:472.612:400.012:570.36:366:27Third Quarter29Sat
30Sun7:372.47:542.61:450.11:010.45:375:26Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447675)

Common Questions About Cotuit, MA Tides

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

Slack tide in Cotuit, MA is approximately 11:10 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 Cotuit, MA?

Cotuit, MA is currently in a transitional phase. Tonight's moon is 65% 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 shifting between spring and neap.

What datum are Cotuit, 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 Cotuit, MA?

Tide predictions for Cotuit, 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 Cotuit, MA?

Tide data for Cotuit, MA is sourced from NOAA Station #8447675. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447675.

What is the moon phase in Cotuit, MA tonight?

Tonight the moon over Cotuit, MA is First Quarter (65% illuminated). This places Cotuit, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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