Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 3h 56m at 9:20 am (-0.4 ft)
Next high tide : 3:38 pm (2.9 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Aug 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:323.31:152.87:02-0.27:120.05:357:59Full Moon1Tue
2Wed1:263.42:082.97:54-0.38:06-0.15:367:57Full Moon2Wed
3Thu2:223.43:023.08:46-0.49:01-0.15:377:56Waning Gibbous3Thu
4Fri3:173.43:543.19:36-0.49:55-0.25:387:55Waning Gibbous4Fri
5Sat4:113.34:453.110:26-0.310:50-0.15:397:54Waning Gibbous5Sat
6Sun5:063.25:373.111:17-0.211:47-0.15:407:53Third Quarter6Sun
7Mon6:033.06:323.112:100.05:417:51Third Quarter7Mon
8Tue7:032.87:283.012:460.01:050.25:427:50Third Quarter8Tue
9Wed8:042.68:252.91:470.12:020.35:437:49Third Quarter9Wed
10Thu9:072.59:242.92:490.22:590.55:447:48Waning Crescent10Thu
11Fri10:122.510:242.83:520.33:580.55:457:46Waning Crescent11Fri
12Sat11:132.411:212.84:540.34:560.55:467:45Waning Crescent12Sat
13Sun12:052.55:500.25:490.55:477:44Waning Crescent13Sun
14Mon12:102.912:512.56:360.26:350.55:487:42New Moon14Mon
15Tue12:542.91:312.67:170.27:170.45:497:41New Moon15Tue
16Wed1:352.92:092.67:540.27:580.45:507:39New Moon16Wed
17Thu2:142.92:452.78:300.18:370.35:517:38New Moon17Thu
18Fri2:522.93:202.79:050.19:160.35:527:36Waxing Crescent18Fri
19Sat3:292.93:552.79:410.29:550.35:537:35Waxing Crescent19Sat
20Sun4:072.84:302.810:160.210:350.35:547:33Waxing Crescent20Sun
21Mon4:462.75:062.810:530.311:170.35:557:32Waxing Crescent21Mon
22Tue5:272.65:462.811:330.35:567:30First Quarter22Tue
23Wed6:122.66:302.812:020.312:170.45:577:29First Quarter23Wed
24Thu7:022.57:192.812:530.31:050.55:587:27First Quarter24Thu
25Fri7:582.48:142.81:480.32:000.55:597:26First Quarter25Fri
26Sat8:582.49:142.92:470.32:580.56:007:24Waxing Gibbous26Sat
27Sun10:012.510:163.03:480.23:590.46:017:22Waxing Gibbous27Sun
28Mon11:032.611:173.24:500.15:010.36:027:21Waxing Gibbous28Mon
29Tue12:012.85:48-0.16:000.16:037:19Full Moon29Tue
30Wed12:163.312:552.96:42-0.26:56-0.16:047:18Full Moon30Wed
31Thu1:113.41:473.17:33-0.37:50-0.26:057:16Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

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What time does the tide turn (slack tide) in South Yarmouth, MA today?

Slack tide in South Yarmouth, MA is approximately 12:29 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 South Yarmouth, MA?

South Yarmouth, MA is currently in a spring phase. Tonight's moon is 9% 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 South Yarmouth, 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 South Yarmouth, MA?

Tide predictions for South Yarmouth, 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 South Yarmouth, MA?

Tide data for South Yarmouth, MA is sourced from NOAA Station #8447504. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447504.

What is the moon phase in South Yarmouth, MA tonight?

Tonight the moon over South Yarmouth, MA is Waxing Crescent (9% illuminated). This places South Yarmouth, 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