Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Falmouth Harbor, MA.
Next low tide : in 5h 20m at 12:25 pm (0.3 ft)
Next high tide : 6:37 pm (1.3 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Feb 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:501.45:460.16:110.06:544:58New Moon1Fri
2Sat12:181.312:281.46:240.16:480.06:534:59Waxing Crescent2Sat
3Sun12:531.31:061.37:040.17:240.06:525:00Waxing Crescent3Sun
4Mon1:291.31:451.37:440.18:030.16:515:01Waxing Crescent4Mon
5Tue2:071.32:261.38:260.18:440.16:495:03Waxing Crescent5Tue
6Wed2:481.33:121.29:130.19:290.16:485:04First Quarter6Wed
7Thu3:331.34:031.210:040.110:190.16:475:05First Quarter7Thu
8Fri4:241.34:581.210:590.111:130.26:465:06First Quarter8Fri
9Sat5:191.35:581.211:570.16:455:08First Quarter9Sat
10Sun6:181.47:001.212:110.112:580.06:445:09Waxing Gibbous10Sun
11Mon7:191.48:011.31:110.11:570.06:425:10Waxing Gibbous11Mon
12Tue8:191.58:571.42:110.02:54-0.16:415:11Waxing Gibbous12Tue
13Wed9:151.69:511.43:09-0.13:47-0.26:405:13Full Moon13Wed
14Thu10:091.610:421.54:03-0.24:38-0.36:385:14Full Moon14Thu
15Fri11:021.711:331.64:56-0.25:28-0.36:375:15Full Moon15Fri
16Sat11:551.65:49-0.36:17-0.36:365:16Waning Gibbous16Sat
17Sun12:241.612:481.66:41-0.27:07-0.26:345:18Waning Gibbous17Sun
18Mon1:141.61:401.57:33-0.27:56-0.26:335:19Waning Gibbous18Mon
19Tue2:051.52:351.48:27-0.18:48-0.16:325:20Third Quarter19Tue
20Wed2:581.53:321.39:24-0.19:430.06:305:21Third Quarter20Wed
21Thu3:551.44:331.210:240.010:410.16:295:23Third Quarter21Thu
22Fri4:551.35:371.211:260.111:410.26:275:24Third Quarter22Fri
23Sat5:571.36:421.112:300.16:265:25Waning Crescent23Sat
24Sun7:001.37:441.212:420.21:330.16:245:26Waning Crescent24Sun
25Mon7:591.38:371.21:420.22:290.16:235:27Waning Crescent25Mon
26Tue8:491.39:221.22:360.23:150.16:215:29Waning Crescent26Tue
27Wed9:321.310:011.33:220.13:540.16:205:30New Moon27Wed
28Thu10:121.410:371.34:030.14:310.06:185:31New Moon28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447865)

Common Questions About Falmouth Harbor, MA Tides

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

Slack tide in Falmouth Harbor, MA is approximately 3:31 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 Falmouth Harbor, MA?

Falmouth Harbor, 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 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 First Quarter (65% illuminated). This places Falmouth Harbor, 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