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 2h 51m 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 - Apr 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:252.79:162.42:030.52:530.36:217:06First Quarter1Thu
2Fri9:302.610:192.43:060.63:560.46:207:07Waxing Gibbous2Fri
3Sat10:332.611:142.54:080.64:550.36:187:08Waxing Gibbous3Sat
4Sun11:272.75:060.55:430.36:167:09Waxing Gibbous4Sun
5Mon12:002.512:132.75:550.46:240.26:157:11Waxing Gibbous5Mon
6Tue12:392.612:542.86:370.37:000.26:137:12Full Moon6Tue
7Wed1:142.71:312.87:160.27:350.26:117:13Full Moon7Wed
8Thu1:482.82:082.87:540.18:100.26:107:14Full Moon8Thu
9Fri2:222.92:452.88:310.18:450.26:087:15Full Moon9Fri
10Sat2:562.93:222.79:090.09:210.26:077:16Waning Gibbous10Sat
11Sun3:312.94:012.79:470.09:590.36:057:17Waning Gibbous11Sun
12Mon4:072.94:412.610:280.110:390.46:037:18Waning Gibbous12Mon
13Tue4:472.95:252.511:120.111:230.46:027:19Waning Gibbous13Tue
14Wed5:322.86:152.512:020.26:007:20Third Quarter14Wed
15Thu6:252.87:122.412:150.512:570.25:597:22Third Quarter15Thu
16Fri7:242.88:132.51:130.51:570.25:577:23Third Quarter16Fri
17Sat8:272.89:152.62:150.42:580.15:567:24Third Quarter17Sat
18Sun9:322.910:172.73:180.33:580.15:547:25Waning Crescent18Sun
19Mon10:373.011:142.94:220.24:57-0.15:537:26Waning Crescent19Mon
20Tue11:373.15:220.05:51-0.25:517:27Waning Crescent20Tue
21Wed12:073.112:333.26:18-0.26:42-0.25:507:28New Moon21Wed
22Thu12:573.31:263.27:11-0.47:31-0.35:487:29New Moon22Thu
23Fri1:453.42:183.28:02-0.58:20-0.25:477:30New Moon23Fri
24Sat2:333.43:093.18:53-0.59:08-0.15:457:31Waxing Crescent24Sat
25Sun3:223.44:013.09:43-0.49:560.05:447:32Waxing Crescent25Sun
26Mon4:103.24:522.810:33-0.210:460.25:427:34Waxing Crescent26Mon
27Tue5:003.15:452.711:25-0.111:380.45:417:35Waxing Crescent27Tue
28Wed5:532.96:422.512:200.15:407:36First Quarter28Wed
29Thu6:502.87:412.512:340.51:180.35:387:37First Quarter29Thu
30Fri7:512.68:402.41:330.62:160.45:377:38First Quarter30Fri
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