Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Falmouth Harbor, MA.
Next low tide : 9:04 am (0.1 ft)
Next high tide : in 1h 34m at 2:50 am (1.4 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Jun 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:121.612:551.46:51-0.27:010.05:108:09Waxing Crescent1Tue
2Wed1:041.61:481.47:42-0.27:530.05:108:10Waxing Crescent2Wed
3Thu1:571.62:431.48:35-0.28:480.15:098:11Waxing Crescent3Thu
4Fri2:531.63:411.49:30-0.19:470.15:098:11Waxing Crescent4Fri
5Sat3:531.54:421.410:28-0.110:490.15:098:12First Quarter5Sat
6Sun4:571.55:431.411:280.011:530.15:088:13First Quarter6Sun
7Mon6:021.46:441.412:270.05:088:13First Quarter7Mon
8Tue7:071.47:431.412:580.11:250.15:088:14Waxing Gibbous8Tue
9Wed8:111.38:381.42:010.12:220.15:088:15Waxing Gibbous9Wed
10Thu9:111.39:291.53:010.13:160.15:078:15Waxing Gibbous10Thu
11Fri10:041.310:151.53:560.04:050.15:078:16Waxing Gibbous11Fri
12Sat10:521.310:571.54:440.04:500.25:078:16Full Moon12Sat
13Sun11:361.311:381.55:280.05:320.25:078:17Full Moon13Sun
14Mon12:191.36:100.06:140.25:078:17Full Moon14Mon
15Tue12:181.41:001.36:510.06:550.25:078:18Full Moon15Tue
16Wed12:581.41:411.27:310.07:360.25:078:18Waning Gibbous16Wed
17Thu1:391.42:211.28:110.18:180.25:078:18Waning Gibbous17Thu
18Fri2:211.43:021.28:520.19:020.35:078:19Waning Gibbous18Fri
19Sat3:041.43:451.29:350.19:480.35:078:19Waning Gibbous19Sat
20Sun3:491.34:301.210:190.110:370.35:088:19Third Quarter20Sun
21Mon4:371.35:161.211:050.211:280.35:088:19Third Quarter21Mon
22Tue5:271.36:021.311:520.25:088:20Third Quarter22Tue
23Wed6:191.36:491.312:200.212:400.25:088:20Third Quarter23Wed
24Thu7:121.37:371.41:130.21:290.25:098:20Waning Crescent24Thu
25Fri8:071.38:271.42:070.12:210.15:098:20Waning Crescent25Fri
26Sat9:031.39:181.53:020.03:130.15:098:20Waning Crescent26Sat
27Sun9:561.310:081.63:550.04:050.15:108:20New Moon27Sun
28Mon10:491.411:001.64:48-0.14:570.05:108:20New Moon28Mon
29Tue11:431.411:531.75:40-0.25:490.05:118:20New Moon29Tue
30Wed12:381.46:32-0.26:430.05:118:20New Moon30Wed
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 5:57 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 transitional phase. Tonight's moon is 27% 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 Waxing Crescent (27% 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