Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 2:59 pm (0.6 ft)
Next high tide : in 1h 02m at 9:07 am (2.4 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jul 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:282.97:052.912:200.312:490.15:108:19First Quarter1Sun
2Mon7:232.97:573.01:150.21:410.15:118:18First Quarter2Mon
3Tue8:212.88:523.12:130.22:350.15:118:18First Quarter3Tue
4Wed9:222.89:483.23:120.13:320.15:128:18Waxing Gibbous4Wed
5Thu10:242.810:463.34:130.04:300.05:128:18Waxing Gibbous5Thu
6Fri11:252.911:433.45:12-0.25:270.05:138:17Waxing Gibbous6Fri
7Sat12:242.96:10-0.36:230.05:148:17Full Moon7Sat
8Sun12:383.41:203.07:05-0.47:17-0.15:148:17Full Moon8Sun
9Mon1:323.42:153.07:58-0.48:10-0.15:158:16Full Moon9Mon
10Tue2:263.43:093.08:50-0.49:030.05:168:16Waning Gibbous10Tue
11Wed3:193.34:003.09:40-0.39:550.15:178:15Waning Gibbous11Wed
12Thu4:113.24:512.910:29-0.210:460.15:178:15Waning Gibbous12Thu
13Fri5:023.15:402.911:180.011:390.25:188:14Waning Gibbous13Fri
14Sat5:542.96:312.812:080.15:198:14Third Quarter14Sat
15Sun6:482.87:212.812:330.312:580.25:208:13Third Quarter15Sun
16Mon7:422.68:122.71:290.41:490.45:218:12Third Quarter16Mon
17Tue8:372.59:022.72:240.42:390.55:218:12Third Quarter17Tue
18Wed9:332.59:532.73:190.43:300.55:228:11Waning Crescent18Wed
19Thu10:282.410:432.84:130.44:210.55:238:10Waning Crescent19Thu
20Fri11:202.511:312.85:060.45:100.55:248:10Waning Crescent20Fri
21Sat12:082.55:530.35:570.55:258:09Waning Crescent21Sat
22Sun12:152.912:522.66:370.26:410.45:268:08New Moon22Sun
23Mon12:572.91:342.67:190.17:240.45:278:07New Moon23Mon
24Tue1:383.02:152.77:590.08:060.35:288:06New Moon24Tue
25Wed2:193.02:552.78:400.08:490.25:298:05New Moon25Wed
26Thu3:013.13:362.89:21-0.19:330.25:308:04Waxing Crescent26Thu
27Fri3:443.14:182.910:03-0.110:180.15:308:03Waxing Crescent27Fri
28Sat4:293.15:012.910:47-0.111:060.15:318:02Waxing Crescent28Sat
29Sun5:163.05:473.011:33-0.111:580.15:328:01First Quarter29Sun
30Mon6:072.96:383.012:230.05:338:00First Quarter30Mon
31Tue7:032.97:323.112:540.11:160.05:347:59First Quarter31Tue
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 12:03 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 transitional phase. Tonight's moon is 71% 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 (71% 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