Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 4:47 am (0.4 ft)
Next high tide : in 1h 46m at 10:16 pm (2.7 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - May 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:522.69:372.52:330.63:130.45:367:39First Quarter1Sat
2Sun9:512.610:302.53:320.64:080.45:347:40Waxing Gibbous2Sun
3Mon10:472.611:162.64:290.54:560.45:337:41Waxing Gibbous3Mon
4Tue11:362.611:572.75:190.45:400.45:327:42Waxing Gibbous4Tue
5Wed12:192.76:040.36:190.35:317:43Waxing Gibbous5Wed
6Thu12:352.812:592.76:450.26:570.35:297:44Full Moon6Thu
7Fri1:102.91:382.77:240.17:340.35:287:45Full Moon7Fri
8Sat1:462.92:172.78:030.18:120.35:277:46Full Moon8Sat
9Sun2:223.02:572.78:430.08:520.35:267:48Full Moon9Sun
10Mon3:013.03:382.79:240.09:330.35:257:49Waning Gibbous10Mon
11Tue3:413.04:222.610:070.010:160.45:247:50Waning Gibbous11Tue
12Wed4:253.05:082.610:530.011:040.45:237:51Waning Gibbous12Wed
13Thu5:133.06:002.611:440.111:570.45:227:52Third Quarter13Thu
14Fri6:082.96:562.612:390.15:217:53Third Quarter14Fri
15Sat7:072.97:552.712:560.41:370.15:207:54Third Quarter15Sat
16Sun8:102.98:552.81:590.42:350.15:197:55Third Quarter16Sun
17Mon9:142.99:542.93:010.33:330.15:187:56Waning Crescent17Mon
18Tue10:182.910:503.14:040.14:310.05:177:57Waning Crescent18Tue
19Wed11:193.011:443.25:050.05:260.05:167:58Waning Crescent19Wed
20Thu12:163.06:01-0.26:18-0.15:157:59New Moon20Thu
21Fri12:343.31:093.06:54-0.37:080.05:147:59New Moon21Fri
22Sat1:223.42:013.07:45-0.47:570.05:148:00New Moon22Sat
23Sun2:103.32:522.98:35-0.38:450.15:138:01New Moon23Sun
24Mon2:593.33:422.89:24-0.39:330.25:128:02Waxing Crescent24Mon
25Tue3:473.24:322.710:12-0.110:210.35:128:03Waxing Crescent25Tue
26Wed4:363.05:212.611:010.011:110.45:118:04Waxing Crescent26Wed
27Thu5:262.96:122.611:510.25:108:05First Quarter27Thu
28Fri6:182.87:052.512:040.512:430.35:108:06First Quarter28Fri
29Sat7:132.77:582.512:590.61:350.45:098:06First Quarter29Sat
30Sun8:092.68:492.51:550.62:260.45:098:07First Quarter30Sun
31Mon9:052.59:392.62:510.63:160.55:088:08First Quarter31Mon
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 1:31 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 79% 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 Waxing Gibbous (79% 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