Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 8:21 am (0.1 ft)
Next high tide (tomorrow) : in 5h 56m at 2:01 am (2.9 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:32 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - May 2081

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:532.68:402.41:360.72:170.55:367:39Third Quarter1Thu
2Fri8:522.59:332.42:350.73:100.55:347:40Third Quarter2Fri
3Sat9:492.510:242.53:320.64:010.55:337:41Waning Crescent3Sat
4Sun10:422.511:092.64:270.54:490.55:327:42Waning Crescent4Sun
5Mon11:312.611:492.75:160.45:320.45:317:43Waning Crescent5Mon
6Tue12:152.66:010.36:120.45:297:44Waning Crescent6Tue
7Wed12:272.812:562.76:430.26:510.35:287:45New Moon7Wed
8Thu1:042.91:362.77:230.17:300.35:277:47New Moon8Thu
9Fri1:413.02:172.78:040.08:100.35:267:48New Moon9Fri
10Sat2:203.03:002.78:460.08:520.35:257:49New Moon10Sat
11Sun3:023.13:442.69:30-0.19:370.35:247:50Waxing Crescent11Sun
12Mon3:473.14:312.610:160.010:240.35:237:51Waxing Crescent12Mon
13Tue4:353.15:212.611:060.011:160.45:227:52Waxing Crescent13Tue
14Wed5:283.06:162.611:590.05:217:53First Quarter14Wed
15Thu6:263.07:152.712:140.412:560.15:207:54First Quarter15Thu
16Fri7:292.98:152.81:160.41:550.15:197:55First Quarter16Fri
17Sat8:332.99:142.92:200.32:530.15:187:56First Quarter17Sat
18Sun9:382.910:113.03:230.23:500.15:177:57Waxing Gibbous18Sun
19Mon10:412.911:063.14:250.14:460.15:167:58Waxing Gibbous19Mon
20Tue11:402.911:583.25:24-0.15:400.15:157:59Waxing Gibbous20Tue
21Wed12:342.96:19-0.26:310.15:148:00Full Moon21Wed
22Thu12:463.31:262.97:10-0.27:190.15:148:00Full Moon22Thu
23Fri1:333.32:162.87:58-0.28:060.25:138:01Full Moon23Fri
24Sat2:203.23:042.88:46-0.28:530.35:128:02Waning Gibbous24Sat
25Sun3:073.13:522.79:33-0.19:400.35:128:03Waning Gibbous25Sun
26Mon3:533.04:382.610:190.010:270.45:118:04Waning Gibbous26Mon
27Tue4:402.95:252.511:050.211:150.55:108:05Waning Gibbous27Tue
28Wed5:292.86:142.511:530.35:108:06Third Quarter28Wed
29Thu6:192.77:042.512:060.612:420.45:098:07Third Quarter29Thu
30Fri7:132.67:542.51:000.61:310.45:098:07Third Quarter30Fri
31Sat8:062.58:422.51:540.62:200.55:088:08Third Quarter31Sat
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 5:11 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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