Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Thursday, August 13, 2026
The tide is currently falling in Falmouth Harbor, MA.
Next low tide : in 5h 47m at 5:58 am (-0.1 ft)
Next high tide : 12:05 pm (1.4 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 5:49 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Sep 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:121.36:070.16:190.16:087:16New Moon1Tue
2Wed12:241.412:461.36:410.16:570.16:097:14New Moon2Wed
3Thu1:011.41:201.47:160.17:350.16:107:13Waxing Crescent3Thu
4Fri1:381.31:541.47:510.18:140.16:117:11Waxing Crescent4Fri
5Sat2:161.32:301.48:280.28:540.16:127:09Waxing Crescent5Sat
6Sun2:561.33:091.49:070.29:390.16:137:08Waxing Crescent6Sun
7Mon3:401.23:531.49:500.210:290.26:147:06First Quarter7Mon
8Tue4:301.24:441.410:400.311:250.26:157:04First Quarter8Tue
9Wed5:271.15:421.411:360.36:167:03First Quarter9Wed
10Thu6:281.26:431.412:250.212:370.36:177:01Waxing Gibbous10Thu
11Fri7:321.27:471.41:270.11:400.26:186:59Waxing Gibbous11Fri
12Sat8:341.38:511.52:280.12:430.16:196:58Waxing Gibbous12Sat
13Sun9:321.49:501.63:260.03:430.06:206:56Waxing Gibbous13Sun
14Mon10:251.510:451.64:20-0.14:39-0.16:216:54Full Moon14Mon
15Tue11:151.511:381.65:10-0.15:32-0.16:226:52Full Moon15Tue
16Wed12:041.65:59-0.26:24-0.26:236:51Full Moon16Wed
17Thu12:311.612:531.66:47-0.17:16-0.26:246:49Waning Gibbous17Thu
18Fri1:231.51:421.67:35-0.18:08-0.26:256:47Waning Gibbous18Fri
19Sat2:151.52:311.68:240.09:00-0.16:266:45Waning Gibbous19Sat
20Sun3:081.43:231.59:140.19:550.06:276:44Third Quarter20Sun
21Mon4:051.34:181.410:080.210:540.16:286:42Third Quarter21Mon
22Tue5:051.25:181.411:060.211:560.16:296:40Third Quarter22Tue
23Wed6:081.26:211.312:060.36:306:39Third Quarter23Wed
24Thu7:111.27:241.312:590.21:080.36:316:37Waning Crescent24Thu
25Fri8:111.28:231.32:000.22:080.36:326:35Waning Crescent25Fri
26Sat9:041.29:151.32:560.23:040.36:336:33Waning Crescent26Sat
27Sun9:481.310:001.33:420.23:520.26:346:32Waning Crescent27Sun
28Mon10:261.310:401.44:210.14:340.26:356:30New Moon28Mon
29Tue11:011.311:181.44:570.15:130.16:366:28New Moon29Tue
30Wed11:351.411:551.45:310.15:510.16:376:26New 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 9:01 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 spring phase. Tonight's moon is 1% 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 maximum.

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 New Moon (1% illuminated). This places Falmouth Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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