Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Falmouth Harbor, MA.
Next low tide : in 1h 20m at 11:31 am (0.3 ft)
Next high tide : 5:42 pm (1.3 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Sep 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:261.41:461.47:410.18:020.16:087:16Waning Gibbous1Mon
2Tue2:061.32:241.48:190.18:440.16:097:15Waning Gibbous2Tue
3Wed2:471.33:041.38:590.29:270.16:107:13Waning Gibbous3Wed
4Thu3:311.33:471.39:420.210:140.26:117:11Third Quarter4Thu
5Fri4:171.24:341.310:280.211:040.26:127:10Third Quarter5Fri
6Sat5:081.25:241.311:180.311:570.26:137:08Third Quarter6Sat
7Sun6:021.26:171.312:100.36:147:06Third Quarter7Sun
8Mon6:561.27:121.312:510.21:050.26:157:05Waning Crescent8Mon
9Tue7:521.28:081.41:460.22:010.26:167:03Waning Crescent9Tue
10Wed8:461.39:021.42:400.12:560.16:177:01Waning Crescent10Wed
11Thu9:361.49:541.53:320.03:490.06:186:59Waning Crescent11Thu
12Fri10:241.510:441.64:21-0.14:41-0.16:196:58New Moon12Fri
13Sat11:121.511:341.65:09-0.15:31-0.16:206:56New Moon13Sat
14Sun11:591.65:57-0.26:21-0.26:216:54New Moon14Sun
15Mon12:251.612:491.76:45-0.27:13-0.26:226:53Waxing Crescent15Mon
16Tue1:171.61:391.77:34-0.28:05-0.26:236:51Waxing Crescent16Tue
17Wed2:101.62:311.68:25-0.18:59-0.26:246:49Waxing Crescent17Wed
18Thu3:061.53:261.69:18-0.19:56-0.16:256:47First Quarter18Thu
19Fri4:041.44:251.510:150.010:560.06:266:46First Quarter19Fri
20Sat5:081.35:281.511:160.16:276:44First Quarter20Sat
21Sun6:131.36:331.412:000.012:190.16:286:42First Quarter21Sun
22Mon7:191.37:381.41:030.11:230.26:296:40Waxing Gibbous22Mon
23Tue8:221.38:411.42:060.12:250.26:306:39Waxing Gibbous23Tue
24Wed9:181.39:361.43:050.13:230.16:316:37Waxing Gibbous24Wed
25Thu10:061.410:231.43:560.14:130.16:326:35Waxing Gibbous25Thu
26Fri10:471.411:041.44:390.14:570.16:336:34Full Moon26Fri
27Sat11:251.411:441.45:180.15:380.16:346:32Full Moon27Sat
28Sun12:001.45:550.16:170.06:356:30Full Moon28Sun
29Mon12:221.412:361.46:320.16:550.16:366:28Full Moon29Mon
30Tue1:001.41:121.47:090.17:340.16:376:27Waning Gibbous30Tue
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 2:36 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 neap phase. Tonight's moon is 55% 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 (55% 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