Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Falmouth Harbor, MA.
Next low tide (tomorrow) : 1:15 am (0.2 ft)
Next high tide : in 1h 47m at 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 - Jan 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:521.51:071.67:00-0.17:34-0.27:094:22Waning Gibbous1Sun
2Mon1:451.52:021.57:55-0.18:26-0.17:094:23Waning Gibbous2Mon
3Tue2:391.42:591.48:510.09:20-0.17:094:24Third Quarter3Tue
4Wed3:341.43:581.39:500.010:150.07:094:25Third Quarter4Wed
5Thu4:311.44:591.310:510.111:110.17:094:26Third Quarter5Thu
6Fri5:281.36:011.211:530.17:094:26Third Quarter6Fri
7Sat6:251.37:031.212:070.212:540.17:094:27Waning Crescent7Sat
8Sun7:211.38:011.21:030.21:540.17:084:28Waning Crescent8Sun
9Mon8:131.38:521.21:570.22:460.17:084:29Waning Crescent9Mon
10Tue8:591.49:361.22:470.23:310.17:084:30Waning Crescent10Tue
11Wed9:411.410:171.23:310.24:110.07:084:32New Moon11Wed
12Thu10:211.410:551.24:130.14:490.07:084:33New Moon12Thu
13Fri10:591.411:331.24:530.15:260.07:074:34New Moon13Fri
14Sat11:371.45:320.16:030.07:074:35New Moon14Sat
15Sun12:091.312:151.46:120.16:390.07:074:36Waxing Crescent15Sun
16Mon12:451.312:531.46:520.17:170.07:064:37Waxing Crescent16Mon
17Tue1:221.31:321.37:320.17:550.07:064:38Waxing Crescent17Tue
18Wed2:001.32:151.38:160.18:370.07:054:39Waxing Crescent18Wed
19Thu2:411.33:011.39:030.19:220.17:054:41First Quarter19Thu
20Fri3:271.33:531.29:550.110:120.17:044:42First Quarter20Fri
21Sat4:181.44:501.210:520.111:070.17:034:43First Quarter21Sat
22Sun5:141.45:511.211:510.17:034:44First Quarter22Sun
23Mon6:131.46:551.212:050.112:530.07:024:45Waxing Gibbous23Mon
24Tue7:151.57:581.31:070.11:55-0.17:014:47Waxing Gibbous24Tue
25Wed8:161.58:581.32:080.02:54-0.17:014:48Waxing Gibbous25Wed
26Thu9:151.69:541.43:07-0.13:50-0.27:004:49Full Moon26Thu
27Fri10:101.610:481.54:03-0.14:42-0.26:594:50Full Moon27Fri
28Sat11:041.611:401.54:57-0.25:33-0.36:584:52Full Moon28Sat
29Sun11:571.65:50-0.26:22-0.26:574:53Waning Gibbous29Sun
30Mon12:301.512:491.66:42-0.27:10-0.26:564:54Waning Gibbous30Mon
31Tue1:201.51:411.57:33-0.17:59-0.16:554:55Waning Gibbous31Tue
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 9:56 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