Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 4h 17m at 11:17 pm (0.2 ft)
Next high tide (tomorrow) : 5:25 am (2.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - May 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:483.15:35-0.25:59-0.25:367:39Waxing Gibbous1Tue
2Wed12:133.312:433.26:30-0.46:51-0.35:357:40Full Moon2Wed
3Thu1:043.51:363.37:23-0.57:42-0.35:347:41Full Moon3Thu
4Fri1:543.52:303.28:15-0.68:33-0.35:327:42Full Moon4Fri
5Sat2:463.53:243.29:07-0.59:24-0.25:317:43Waning Gibbous5Sat
6Sun3:383.44:183.19:59-0.510:16-0.15:307:44Waning Gibbous6Sun
7Mon4:303.35:133.010:52-0.311:090.15:297:45Waning Gibbous7Mon
8Tue5:253.26:102.811:47-0.15:287:46Third Quarter8Tue
9Wed6:223.07:092.712:050.212:440.05:267:47Third Quarter9Wed
10Thu7:232.88:092.71:050.41:420.25:257:48Third Quarter10Thu
11Fri8:242.79:072.62:060.42:400.35:247:49Third Quarter11Fri
12Sat9:242.610:022.73:060.53:360.35:237:50Waning Crescent12Sat
13Sun10:222.610:532.74:050.44:280.45:227:51Waning Crescent13Sun
14Mon11:152.611:372.84:590.45:160.45:217:52Waning Crescent14Mon
15Tue12:022.75:470.35:590.35:207:53Waning Crescent15Tue
16Wed12:182.912:442.76:290.26:390.35:197:54New Moon16Wed
17Thu12:552.91:242.77:090.17:180.35:187:55New Moon17Thu
18Fri1:322.92:032.77:480.17:560.35:177:56New Moon18Fri
19Sat2:093.02:422.78:270.08:350.35:167:57New Moon19Sat
20Sun2:463.03:222.79:060.09:150.35:167:58Waxing Crescent20Sun
21Mon3:253.04:022.79:470.09:560.35:157:59Waxing Crescent21Mon
22Tue4:063.04:442.710:290.010:400.45:148:00Waxing Crescent22Tue
23Wed4:493.05:292.711:130.111:270.45:138:01Waxing Crescent23Wed
24Thu5:362.96:182.712:020.15:138:02First Quarter24Thu
25Fri6:282.97:102.712:200.412:540.15:128:03First Quarter25Fri
26Sat7:252.98:052.81:160.31:480.15:118:04First Quarter26Sat
27Sun8:242.99:012.92:150.22:440.05:118:05First Quarter27Sun
28Mon9:252.99:583.13:150.13:410.05:108:05Waxing Gibbous28Mon
29Tue10:273.010:553.24:160.04:38-0.15:108:06Waxing Gibbous29Tue
30Wed11:273.011:503.45:15-0.25:34-0.15:098:07Waxing Gibbous30Wed
31Thu12:253.16:11-0.36:28-0.25:098:08Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

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

Slack tide in South Yarmouth, MA is approximately 2:21 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 75% 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 Waning Gibbous (75% 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