Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Falmouth Harbor, MA.
Next low tide : in 5h 46m at 9:09 pm (0.0 ft)
Next high tide (tomorrow) : 3:17 am (1.5 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:24 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8447865
Common Questions About Tides

Falmouth Harbor, MA Tides - Sep 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:261.511:441.65:23-0.15:42-0.16:097:14Full Moon1Sun
2Mon12:101.56:08-0.16:30-0.16:107:13Full Moon2Mon
3Tue12:331.612:571.66:53-0.17:19-0.26:117:11Waning Gibbous3Tue
4Wed1:221.61:451.67:41-0.18:10-0.26:127:09Waning Gibbous4Wed
5Thu2:131.52:351.68:29-0.19:02-0.16:137:08Waning Gibbous5Thu
6Fri3:071.53:281.69:21-0.19:59-0.16:147:06Third Quarter6Fri
7Sat4:041.44:261.510:170.010:590.06:157:04Third Quarter7Sat
8Sun5:061.45:281.511:170.16:167:03Third Quarter8Sun
9Mon6:121.36:331.412:020.012:190.16:177:01Third Quarter9Mon
10Tue7:181.37:391.41:060.01:230.16:186:59Waning Crescent10Tue
11Wed8:231.38:431.42:100.12:270.16:196:58Waning Crescent11Wed
12Thu9:221.39:411.43:100.03:260.16:206:56Waning Crescent12Thu
13Fri10:131.410:301.44:030.04:190.16:216:54New Moon13Fri
14Sat10:571.411:151.44:490.05:060.06:226:52New Moon14Sat
15Sun11:371.411:571.45:310.05:490.06:236:51New Moon15Sun
16Mon12:161.46:100.06:300.06:246:49New Moon16Mon
17Tue12:371.412:531.46:480.17:110.06:256:47Waxing Crescent17Tue
18Wed1:161.41:301.47:270.17:510.16:266:45Waxing Crescent18Wed
19Thu1:561.32:091.48:050.18:320.16:276:44Waxing Crescent19Thu
20Fri2:371.32:491.48:460.29:150.16:286:42Waxing Crescent20Fri
21Sat3:201.23:321.39:280.210:010.26:296:40First Quarter21Sat
22Sun4:071.24:201.310:150.310:510.26:306:39First Quarter22Sun
23Mon4:581.25:111.311:060.311:440.26:316:37First Quarter23Mon
24Tue5:511.26:051.311:590.36:326:35First Quarter24Tue
25Wed6:461.27:001.312:380.212:540.36:336:33Waxing Gibbous25Wed
26Thu7:401.27:561.41:320.21:500.26:346:32Waxing Gibbous26Thu
27Fri8:321.38:501.42:250.12:450.16:356:30Waxing Gibbous27Fri
28Sat9:211.49:411.53:160.03:380.06:366:28Waxing Gibbous28Sat
29Sun10:081.510:311.54:050.04:28-0.16:376:26Full Moon29Sun
30Mon10:541.611:201.64:52-0.15:18-0.26:396:25Full Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447865)

Common Questions About Falmouth Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Falmouth Harbor, MA today?

Slack tide in Falmouth Harbor, MA is approximately 12:13 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 transitional phase. Tonight's moon is 23% 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 shifting between spring and neap.

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 Waxing Crescent (23% illuminated). This places Falmouth Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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