Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Falmouth Harbor, MA.
Next low tide : in 4h 28m at 10:39 am (0.2 ft)
Next high tide : 4:49 pm (1.3 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Sep 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:311.44:541.410:420.111:210.16:087:16Third Quarter1Fri
2Sat5:321.35:531.411:390.26:097:14Third Quarter2Sat
3Sun6:331.26:521.412:220.112:370.26:107:13Third Quarter3Sun
4Mon7:351.27:521.31:230.11:350.26:117:11Waning Crescent4Mon
5Tue8:341.28:481.32:230.12:330.26:127:09Waning Crescent5Tue
6Wed9:261.29:381.43:180.13:260.26:137:07Waning Crescent6Wed
7Thu10:111.310:221.44:050.14:120.26:147:06Waning Crescent7Thu
8Fri10:511.311:021.44:450.14:540.16:157:04New Moon8Fri
9Sat11:291.311:401.45:230.15:340.16:167:02New Moon9Sat
10Sun12:051.45:590.16:130.16:177:01New Moon10Sun
11Mon12:181.412:401.46:350.16:520.16:186:59New Moon11Mon
12Tue12:561.41:161.47:120.17:310.16:196:57Waxing Crescent12Tue
13Wed1:341.41:521.47:500.18:110.16:206:56Waxing Crescent13Wed
14Thu2:141.42:301.48:280.18:540.16:216:54Waxing Crescent14Thu
15Fri2:551.33:111.49:100.19:390.16:226:52Waxing Crescent15Fri
16Sat3:411.33:571.49:560.110:300.16:236:50First Quarter16Sat
17Sun4:321.34:491.410:470.211:260.16:246:49First Quarter17Sun
18Mon5:281.35:461.411:430.26:256:47First Quarter18Mon
19Tue6:281.36:471.412:240.112:430.26:266:45Waxing Gibbous19Tue
20Wed7:301.37:491.51:240.01:440.16:276:43Waxing Gibbous20Wed
21Thu8:311.48:511.52:250.02:450.06:286:42Waxing Gibbous21Thu
22Fri9:291.49:501.63:23-0.13:440.06:296:40Waxing Gibbous22Fri
23Sat10:241.510:451.64:18-0.14:40-0.16:306:38Full Moon23Sat
24Sun11:151.611:391.65:10-0.25:33-0.26:316:36Full Moon24Sun
25Mon12:061.66:00-0.26:26-0.26:326:35Full Moon25Mon
26Tue12:321.612:561.66:49-0.27:17-0.26:336:33Waning Gibbous26Tue
27Wed1:251.61:451.67:38-0.18:08-0.16:346:31Waning Gibbous27Wed
28Thu2:171.52:351.68:270.09:00-0.16:366:30Waning Gibbous28Thu
29Fri3:091.43:261.59:180.19:540.06:376:28Third Quarter29Fri
30Sat4:041.34:201.410:110.110:510.16:386:26Third Quarter30Sat
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 1:44 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 46% 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 (46% 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