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 2h 46m at 11:19 am (0.2 ft)
Next high tide : 5:32 pm (1.4 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 - Apr 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:161.33:511.29:440.19:590.26:247:07Waning Gibbous1Tue
2Wed4:021.34:401.210:330.110:490.26:227:09Third Quarter2Wed
3Thu4:521.35:321.111:240.211:410.36:207:10Third Quarter3Thu
4Fri5:461.26:271.212:180.26:197:11Third Quarter4Fri
5Sat6:411.37:211.212:360.31:110.26:177:12Third Quarter5Sat
6Sun7:371.38:141.21:310.22:050.16:157:13Waning Crescent6Sun
7Mon8:321.39:041.32:270.22:560.16:147:14Waning Crescent7Mon
8Tue9:241.49:501.43:190.13:450.06:127:15Waning Crescent8Tue
9Wed10:131.510:351.54:100.04:320.06:117:16New Moon9Wed
10Thu11:011.511:201.64:58-0.15:18-0.16:097:17New Moon10Thu
11Fri11:491.55:46-0.26:05-0.16:077:18New Moon11Fri
12Sat12:071.612:391.56:35-0.26:53-0.16:067:19New Moon12Sat
13Sun12:551.71:301.57:25-0.37:42-0.16:047:21Waxing Crescent13Sun
14Mon1:451.72:221.58:17-0.28:34-0.16:037:22Waxing Crescent14Mon
15Tue2:381.63:181.49:10-0.29:280.06:017:23Waxing Crescent15Tue
16Wed3:341.64:181.410:08-0.110:280.05:597:24First Quarter16Wed
17Thu4:351.55:211.311:080.011:310.15:587:25First Quarter17Thu
18Fri5:411.46:271.312:110.05:567:26First Quarter18Fri
19Sat6:481.47:321.312:350.11:140.15:557:27Waxing Gibbous19Sat
20Sun7:551.48:331.41:410.12:160.15:537:28Waxing Gibbous20Sun
21Mon8:581.49:271.42:440.13:130.15:527:29Waxing Gibbous21Mon
22Tue9:521.410:141.43:410.14:030.15:507:30Waxing Gibbous22Tue
23Wed10:401.410:551.44:300.04:470.15:497:31Full Moon23Wed
24Thu11:221.411:331.45:140.05:270.15:477:33Full Moon24Thu
25Fri12:021.45:540.06:060.15:467:34Full Moon25Fri
26Sat12:101.412:411.36:340.06:440.15:457:35Full Moon26Sat
27Sun12:471.41:201.37:130.07:230.15:437:36Waning Gibbous27Sun
28Mon1:251.41:591.37:520.08:030.25:427:37Waning Gibbous28Mon
29Tue2:041.42:391.38:320.18:440.25:417:38Waning Gibbous29Tue
30Wed2:451.43:221.29:140.19:280.25:397:39Waning Gibbous30Wed
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 2:25 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 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