Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide (tomorrow) : in 8m at 12:06 am (0.2 ft)
Next high tide (tomorrow) : 6:14 am (2.7 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Nov 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:093.111:353.04:490.05:18-0.16:134:34Full Moon1Sun
2Mon11:563.25:380.06:08-0.26:154:33Full Moon2Mon
3Tue12:243.012:393.26:240.06:54-0.26:164:32Full Moon3Tue
4Wed1:103.01:223.27:080.07:39-0.26:174:31Full Moon4Wed
5Thu1:562.92:043.17:510.18:23-0.16:184:29Waning Gibbous5Thu
6Fri2:402.82:463.08:330.29:070.06:194:28Waning Gibbous6Fri
7Sat3:242.73:292.99:170.49:520.16:214:27Waning Gibbous7Sat
8Sun4:092.64:142.810:020.510:390.26:224:26Waning Gibbous8Sun
9Mon4:582.55:032.710:510.611:290.36:234:25Third Quarter9Mon
10Tue5:492.45:562.611:430.66:244:24Third Quarter10Tue
11Wed6:422.46:512.612:210.412:380.66:264:23Third Quarter11Wed
12Thu7:352.57:472.61:130.41:320.66:274:22Third Quarter12Thu
13Fri8:262.58:412.62:040.42:260.56:284:21Waning Crescent13Fri
14Sat9:152.69:332.62:540.43:190.46:294:20Waning Crescent14Sat
15Sun10:002.810:212.73:410.34:090.36:304:19Waning Crescent15Sun
16Mon10:432.911:072.84:270.24:550.16:324:19Waning Crescent16Mon
17Tue11:243.111:522.95:110.15:41-0.16:334:18New Moon17Tue
18Wed12:053.25:540.06:26-0.26:344:17New Moon18Wed
19Thu12:362.912:483.36:380.07:12-0.36:354:16New Moon19Thu
20Fri1:232.91:343.47:24-0.17:59-0.46:364:16Waxing Crescent20Fri
21Sat2:122.92:223.48:120.08:49-0.46:374:15Waxing Crescent21Sat
22Sun3:032.93:143.39:020.09:41-0.36:394:14Waxing Crescent22Sun
23Mon3:572.94:093.29:560.110:36-0.26:404:14Waxing Crescent23Mon
24Tue4:552.85:083.110:550.211:35-0.16:414:13First Quarter24Tue
25Wed5:562.86:123.011:570.26:424:13First Quarter25Wed
26Thu7:002.87:192.912:360.01:020.26:434:12First Quarter26Thu
27Fri8:032.88:252.81:360.02:070.26:444:12Waxing Gibbous27Fri
28Sat9:032.99:292.82:360.13:110.16:454:12Waxing Gibbous28Sat
29Sun10:003.010:292.83:340.14:110.06:464:11Waxing Gibbous29Sun
30Mon10:513.011:212.84:280.15:050.06:474:11Waxing Gibbous30Mon
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 3:10 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 66% 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 Third Quarter (66% 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