Tides Today & Tomorrow in Falmouth Harbor, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Falmouth Harbor, MA.
Next low tide : 11:58 pm (0.2 ft)
Next high tide : in 5h 26m at 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 - May 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:291.34:081.210:000.110:150.35:387:40Third Quarter1Thu
2Fri4:161.34:571.210:480.111:060.35:377:41Third Quarter2Fri
3Sat5:081.35:471.211:380.25:357:42Third Quarter3Sat
4Sun6:011.36:391.312:000.212:300.15:347:43Third Quarter4Sun
5Mon6:571.37:311.312:550.21:220.15:337:44Waning Crescent5Mon
6Tue7:531.38:221.41:510.12:150.15:327:45Waning Crescent6Tue
7Wed8:491.49:131.52:460.13:080.05:307:46Waning Crescent7Wed
8Thu9:421.410:021.63:400.03:590.05:297:48Waning Crescent8Thu
9Fri10:341.510:511.74:32-0.14:49-0.15:287:49New Moon9Fri
10Sat11:261.511:421.75:24-0.25:39-0.15:277:50New Moon10Sat
11Sun12:191.56:15-0.36:30-0.15:267:51New Moon11Sun
12Mon12:331.71:131.57:07-0.37:23-0.15:257:52Waxing Crescent12Mon
13Tue1:271.72:081.58:00-0.28:16-0.15:247:53Waxing Crescent13Tue
14Wed2:221.63:041.58:54-0.29:120.05:237:54Waxing Crescent14Wed
15Thu3:191.64:031.49:50-0.110:110.15:227:55First Quarter15Thu
16Fri4:191.55:051.410:490.011:130.15:217:56First Quarter16Fri
17Sat5:231.46:061.411:490.05:207:57First Quarter17Sat
18Sun6:281.47:071.412:170.112:480.15:197:58First Quarter18Sun
19Mon7:311.38:041.41:200.11:460.15:187:59Waxing Gibbous19Mon
20Tue8:321.38:571.42:210.12:420.15:188:00Waxing Gibbous20Tue
21Wed9:271.39:441.43:180.13:320.15:178:01Waxing Gibbous21Wed
22Thu10:151.310:261.44:070.14:170.25:168:01Waxing Gibbous22Thu
23Fri10:581.311:051.44:510.14:580.25:158:02Full Moon23Fri
24Sat11:381.311:421.45:310.05:370.25:158:03Full Moon24Sat
25Sun12:171.36:100.06:170.25:148:04Full Moon25Sun
26Mon12:201.412:561.36:490.06:560.25:138:05Full Moon26Mon
27Tue12:591.41:361.37:270.07:360.25:138:06Waning Gibbous27Tue
28Wed1:381.42:151.38:070.18:170.25:128:07Waning Gibbous28Wed
29Thu2:181.42:561.38:470.19:000.25:118:08Waning Gibbous29Thu
30Fri3:001.43:381.39:300.19:460.25:118:08Waning Gibbous30Fri
31Sat3:451.44:231.310:150.110:350.25:108:09Third Quarter31Sat
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 8:45 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