Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 9:08 pm (0.3 ft)
Next high tide : in 22m at 3:14 pm (2.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jul 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:122.58:352.72:030.52:170.55:108:19First Quarter1Sun
2Mon9:052.49:242.82:550.43:070.55:118:18Waxing Gibbous2Mon
3Tue10:002.410:162.93:500.33:590.55:118:18Waxing Gibbous3Tue
4Wed10:562.511:083.04:450.24:530.45:128:18Waxing Gibbous4Wed
5Thu11:502.65:390.15:460.35:138:18Waxing Gibbous5Thu
6Fri12:003.212:422.76:30-0.16:380.25:138:17Full Moon6Fri
7Sat12:523.31:332.87:21-0.27:310.05:148:17Full Moon7Sat
8Sun1:443.42:253.08:11-0.38:23-0.15:158:17Full Moon8Sun
9Mon2:373.43:173.19:01-0.49:17-0.15:158:16Waning Gibbous9Mon
10Tue3:313.44:083.19:51-0.410:10-0.15:168:16Waning Gibbous10Tue
11Wed4:253.35:013.210:41-0.311:06-0.15:178:15Waning Gibbous11Wed
12Thu5:203.25:543.211:33-0.25:188:15Third Quarter12Thu
13Fri6:183.06:503.112:03-0.112:27-0.15:188:14Third Quarter13Fri
14Sat7:192.97:473.11:040.01:230.15:198:14Third Quarter14Sat
15Sun8:212.78:463.02:050.12:210.25:208:13Third Quarter15Sun
16Mon9:252.69:453.03:080.13:190.35:218:12Waning Crescent16Mon
17Tue10:292.510:443.04:100.24:180.45:228:12Waning Crescent17Tue
18Wed11:292.511:392.95:110.25:150.45:238:11Waning Crescent18Wed
19Thu12:212.66:050.16:060.45:238:10Waning Crescent19Thu
20Fri12:283.01:072.66:520.16:530.45:248:09New Moon20Fri
21Sat1:123.01:492.67:340.17:360.45:258:08New Moon21Sat
22Sun1:533.02:292.78:130.18:180.35:268:08New Moon22Sun
23Mon2:332.93:062.78:500.18:590.35:278:07New Moon23Mon
24Tue3:132.93:432.79:270.19:390.35:288:06Waxing Crescent24Tue
25Wed3:512.94:202.710:040.210:190.35:298:05Waxing Crescent25Wed
26Thu4:312.84:572.710:410.211:010.45:308:04Waxing Crescent26Thu
27Fri5:112.75:362.711:210.311:450.45:318:03Waxing Crescent27Fri
28Sat5:552.66:182.712:020.45:328:02First Quarter28Sat
29Sun6:422.57:032.812:330.412:470.45:338:01First Quarter29Sun
30Mon7:322.57:522.81:240.41:360.55:348:00First Quarter30Mon
31Tue8:272.48:452.82:180.42:290.55:357:59First Quarter31Tue
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 6:11 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 96% 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 Waning Gibbous (96% 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