Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Falmouth Harbor, MA.
Next low tide (tomorrow) : in 5h 37m at 5:06 am (-0.1 ft)
Next high tide (tomorrow) : 11:13 am (1.4 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 5:47 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Sep 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:351.35:541.511:430.16:087:15Third Quarter1Fri
2Sat6:411.27:001.412:330.112:470.26:097:14Waning Crescent2Sat
3Sun7:501.28:081.41:390.11:520.26:107:12Waning Crescent3Sun
4Mon8:551.39:121.42:430.12:560.16:117:10Waning Crescent4Mon
5Tue9:531.310:081.53:420.03:550.16:127:09Waning Crescent5Tue
6Wed10:421.410:581.54:340.04:470.16:137:07New Moon6Wed
7Thu11:261.411:431.55:190.05:350.06:147:05New Moon7Thu
8Fri12:071.46:010.06:190.06:157:04New Moon8Fri
9Sat12:261.412:461.46:410.07:020.06:167:02Waxing Crescent9Sat
10Sun1:081.41:241.47:190.17:430.16:177:00Waxing Crescent10Sun
11Mon1:491.32:021.47:580.18:250.16:186:58Waxing Crescent11Mon
12Tue2:301.32:411.48:380.29:080.16:196:57Waxing Crescent12Tue
13Wed3:131.23:241.39:200.29:540.26:206:55Waxing Crescent13Wed
14Thu4:001.24:111.310:050.310:450.26:216:53First Quarter14Thu
15Fri4:521.15:031.310:560.311:390.26:226:51First Quarter15Fri
16Sat5:471.15:581.311:490.36:236:50First Quarter16Sat
17Sun6:431.16:541.312:340.212:450.36:246:48First Quarter17Sun
18Mon7:391.17:501.31:290.21:410.36:266:46Waxing Gibbous18Mon
19Tue8:311.28:441.42:220.22:360.26:276:45Waxing Gibbous19Tue
20Wed9:191.39:331.43:120.13:270.16:286:43Waxing Gibbous20Wed
21Thu10:031.410:201.53:580.04:160.16:296:41Full Moon21Thu
22Fri10:451.511:061.54:420.05:030.06:306:39Full Moon22Fri
23Sat11:271.511:531.55:26-0.15:50-0.16:316:38Full Moon23Sat
24Sun12:121.66:10-0.16:38-0.26:326:36Full Moon24Sun
25Mon12:411.512:581.66:55-0.17:27-0.26:336:34Waning Gibbous25Mon
26Tue1:311.51:461.67:43-0.18:18-0.26:346:32Waning Gibbous26Tue
27Wed2:231.42:381.68:330.09:12-0.16:356:31Waning Gibbous27Wed
28Thu3:181.43:341.59:270.110:110.06:366:29Third Quarter28Thu
29Fri4:191.34:351.510:260.111:140.06:376:27Third Quarter29Fri
30Sat5:251.35:421.411:300.26:386:26Third Quarter30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447865)

Common Questions About Falmouth Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Falmouth Harbor, MA today?

Slack tide in Falmouth Harbor, MA is approximately 8:09 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 Falmouth Harbor, MA?

Falmouth Harbor, MA is currently in a spring phase. Tonight's moon is 2% 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 maximum.

What datum are Falmouth Harbor, 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 Falmouth Harbor, MA?

Tide predictions for Falmouth Harbor, 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 Falmouth Harbor, MA?

Tide data for Falmouth Harbor, MA is sourced from NOAA Station #8447865. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447865.

What is the moon phase in Falmouth Harbor, MA tonight?

Tonight the moon over Falmouth Harbor, MA is New Moon (2% illuminated). This places Falmouth Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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