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 (tomorrow) : in 4h 29m at 1:15 am (0.2 ft)
Next high tide (tomorrow) : 7:24 am (1.1 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 - Oct 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:031.511:261.55:000.05:240.06:386:25Full Moon1Sat
2Sun11:431.55:420.06:09-0.16:396:24Full Moon2Sun
3Mon12:111.512:261.66:250.06:55-0.16:406:22Waning Gibbous3Mon
4Tue12:571.51:111.67:100.07:43-0.16:416:20Waning Gibbous4Tue
5Wed1:461.41:591.67:570.08:33-0.16:426:19Waning Gibbous5Wed
6Thu2:371.42:511.68:470.09:27-0.16:436:17Waning Gibbous6Thu
7Fri3:331.43:481.59:420.110:260.06:446:15Third Quarter7Fri
8Sat4:341.34:511.510:430.111:280.06:466:14Third Quarter8Sat
9Sun5:391.35:571.411:470.16:476:12Third Quarter9Sun
10Mon6:451.37:051.412:320.012:530.16:486:10Waning Crescent10Mon
11Tue7:501.38:121.41:350.11:580.16:496:09Waning Crescent11Tue
12Wed8:501.49:131.42:350.03:010.16:506:07Waning Crescent12Wed
13Thu9:421.410:071.43:300.03:570.06:516:06Waning Crescent13Thu
14Fri10:291.510:551.44:200.04:460.06:526:04New Moon14Fri
15Sat11:111.511:391.45:040.05:320.06:536:02New Moon15Sat
16Sun11:511.55:460.16:150.06:546:01New Moon16Sun
17Mon12:221.412:301.56:270.16:570.06:565:59New Moon17Mon
18Tue1:041.31:101.47:070.17:380.06:575:58Waxing Crescent18Tue
19Wed1:451.31:511.47:480.28:210.16:585:56Waxing Crescent19Wed
20Thu2:281.32:331.48:300.29:040.16:595:55Waxing Crescent20Thu
21Fri3:121.23:181.39:140.39:510.27:005:53Waxing Crescent21Fri
22Sat4:001.24:071.310:030.310:410.27:015:52First Quarter22Sat
23Sun4:511.25:001.310:550.311:330.27:025:50First Quarter23Sun
24Mon5:441.25:551.311:500.37:045:49First Quarter24Mon
25Tue6:361.26:491.312:240.212:440.37:055:47First Quarter25Tue
26Wed7:261.27:431.31:150.21:380.27:065:46Waxing Gibbous26Wed
27Thu8:151.38:351.32:050.22:310.27:075:45Waxing Gibbous27Thu
28Fri9:001.49:251.42:530.13:220.17:085:43Waxing Gibbous28Fri
29Sat9:441.510:121.43:400.14:100.07:105:42Full Moon29Sat
30Sun9:281.69:591.43:250.03:57-0.16:114:41Full Moon30Sun
31Mon10:121.610:471.54:110.04:45-0.26:124:39Full Moon31Mon
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 4:19 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 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