Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 3:27 am (0.3 ft)
Next high tide : in 4h 10m at 9:10 pm (2.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Sep 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:582.511:102.84:390.34:470.56:077:13Waxing Gibbous1Mon
2Tue11:482.611:572.85:310.35:370.46:087:11Waxing Gibbous2Tue
3Wed12:312.66:150.26:220.46:097:10Waxing Gibbous3Wed
4Thu12:402.91:102.76:540.27:040.36:107:08Full Moon4Thu
5Fri1:192.91:472.87:310.17:430.26:117:06Full Moon5Fri
6Sat1:582.92:232.88:080.18:220.26:127:05Full Moon6Sat
7Sun2:352.92:582.88:440.19:010.26:137:03Full Moon7Sun
8Mon3:142.93:342.99:210.19:410.16:147:01Waning Gibbous8Mon
9Tue3:522.94:112.99:590.110:220.16:156:59Waning Gibbous9Tue
10Wed4:332.84:502.910:390.211:060.26:166:58Waning Gibbous10Wed
11Thu5:162.75:332.911:220.211:540.26:176:56Third Quarter11Thu
12Fri6:042.76:212.912:100.36:186:54Third Quarter12Fri
13Sat6:572.67:152.912:470.21:030.36:196:52Third Quarter13Sat
14Sun7:562.68:143.01:440.22:010.36:206:51Third Quarter14Sun
15Mon8:572.69:163.02:440.13:020.36:216:49Waning Crescent15Mon
16Tue10:002.710:193.13:450.04:040.26:226:47Waning Crescent16Tue
17Wed11:012.911:213.24:46-0.15:050.06:236:46Waning Crescent17Wed
18Thu11:583.05:43-0.26:03-0.16:246:44New Moon18Thu
19Fri12:183.312:513.26:37-0.36:58-0.36:256:42New Moon19Fri
20Sat1:133.41:423.37:28-0.47:50-0.36:266:40New Moon20Sat
21Sun2:063.42:323.38:17-0.48:42-0.46:276:39New Moon21Sun
22Mon2:593.33:223.39:06-0.39:33-0.36:296:37Waxing Crescent22Mon
23Tue3:503.24:103.29:54-0.210:24-0.26:306:35Waxing Crescent23Tue
24Wed4:423.05:003.110:430.011:16-0.16:316:33Waxing Crescent24Wed
25Thu5:352.95:513.011:340.26:326:32First Quarter25Thu
26Fri6:302.76:452.912:100.112:270.46:336:30First Quarter26Fri
27Sat7:282.67:422.81:070.21:230.56:346:28First Quarter27Sat
28Sun8:282.58:412.72:050.32:210.66:356:26First Quarter28Sun
29Mon9:262.59:392.73:030.43:180.66:366:25Waxing Gibbous29Mon
30Tue10:222.510:352.74:000.44:140.56:376:23Waxing Gibbous30Tue
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 12:18 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 South Yarmouth, MA?

South Yarmouth, MA is currently in a transitional phase. Tonight's moon is 67% 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 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 First Quarter (67% illuminated). This places South Yarmouth, 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