Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Falmouth Harbor, MA.
Next low tide : in 4h 33m at 11:58 pm (0.2 ft)
Next high tide (tomorrow) : 6:05 am (1.2 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Sep 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:251.38:461.52:170.02:350.16:097:15Waning Crescent1Mon
2Tue9:271.49:461.53:170.03:350.06:107:13Waning Crescent2Tue
3Wed10:221.410:411.64:13-0.14:310.06:117:12New Moon3Wed
4Thu11:121.511:311.65:04-0.15:23-0.16:127:10New Moon4Thu
5Fri11:591.55:52-0.16:12-0.16:137:08New Moon5Fri
6Sat12:201.512:451.56:38-0.16:59-0.16:147:07Waxing Crescent6Sat
7Sun1:071.51:281.57:220.07:460.06:157:05Waxing Crescent7Sun
8Mon1:531.42:111.58:050.08:310.06:167:03Waxing Crescent8Mon
9Tue2:381.42:541.48:480.19:170.16:177:01Waxing Crescent9Tue
10Wed3:241.33:401.49:340.210:060.16:187:00First Quarter10Wed
11Thu4:131.24:291.310:220.210:580.26:196:58First Quarter11Thu
12Fri5:061.25:211.311:130.311:520.26:206:56First Quarter12Fri
13Sat6:001.26:161.312:060.36:216:55First Quarter13Sat
14Sun6:561.27:111.312:460.21:010.36:226:53Waxing Gibbous14Sun
15Mon7:511.28:051.31:400.21:550.36:236:51Waxing Gibbous15Mon
16Tue8:431.28:571.32:330.22:470.26:246:49Waxing Gibbous16Tue
17Wed9:301.39:431.43:210.13:370.26:256:48Waxing Gibbous17Wed
18Thu10:121.310:271.44:050.14:220.16:266:46Full Moon18Thu
19Fri10:521.411:091.54:470.05:060.06:276:44Full Moon19Fri
20Sat11:321.511:521.55:290.05:500.06:286:42Full Moon20Sat
21Sun12:121.56:100.06:35-0.16:296:41Full Moon21Sun
22Mon12:371.512:551.66:54-0.17:21-0.16:306:39Waning Gibbous22Mon
23Tue1:231.51:411.67:39-0.18:09-0.16:316:37Waning Gibbous23Tue
24Wed2:111.52:291.68:260.09:00-0.16:326:35Waning Gibbous24Wed
25Thu3:031.43:211.69:170.09:54-0.16:336:34Third Quarter25Thu
26Fri3:591.44:181.510:120.110:540.06:346:32Third Quarter26Fri
27Sat5:001.35:201.511:130.111:560.06:356:30Third Quarter27Sat
28Sun6:051.36:261.412:160.16:366:29Third Quarter28Sun
29Mon7:111.37:321.412:590.01:200.16:376:27Waning Crescent29Mon
30Tue8:151.48:371.42:010.02:240.16:386:25Waning Crescent30Tue
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 3:01 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places Falmouth Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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