Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 8:58 am (0.1 ft)
Next high tide (tomorrow) : in 6h 12m at 2:41 am (3.0 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:33 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jan 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:182.76:442.512:030.212:370.27:074:20Third Quarter1Sat
2Sun7:112.87:432.512:550.21:350.27:074:21Third Quarter2Sun
3Mon8:062.98:452.51:500.22:350.17:074:22Waning Crescent3Mon
4Tue9:053.09:482.62:480.23:37-0.17:074:23Waning Crescent4Tue
5Wed10:053.210:492.73:480.14:37-0.27:074:24Waning Crescent5Wed
6Thu11:033.311:462.84:470.05:33-0.37:074:25New Moon6Thu
7Fri11:593.45:43-0.16:27-0.57:074:26New Moon7Fri
8Sat12:422.912:543.46:38-0.27:20-0.57:074:27New Moon8Sat
9Sun1:362.91:493.47:32-0.28:11-0.57:064:28Waxing Crescent9Sun
10Mon2:293.02:433.38:26-0.29:01-0.47:064:29Waxing Crescent10Mon
11Tue3:203.03:353.19:19-0.19:50-0.37:064:30Waxing Crescent11Tue
12Wed4:103.04:293.010:12-0.110:40-0.17:064:31Waxing Crescent12Wed
13Thu5:012.95:242.811:080.111:310.17:054:32First Quarter13Thu
14Fri5:542.86:212.612:060.27:054:34First Quarter14Fri
15Sat6:482.77:202.412:240.21:050.37:044:35First Quarter15Sat
16Sun7:422.78:202.31:180.42:050.37:044:36First Quarter16Sun
17Mon8:382.69:202.32:120.53:050.37:034:37Waxing Gibbous17Mon
18Tue9:342.710:172.33:080.54:020.37:034:38Waxing Gibbous18Tue
19Wed10:252.711:062.34:010.54:530.27:024:39Waxing Gibbous19Wed
20Thu11:112.811:492.44:500.45:360.27:024:41Waxing Gibbous20Thu
21Fri11:532.85:340.46:150.17:014:42Full Moon21Fri
22Sat12:282.512:322.96:150.36:520.07:004:43Full Moon22Sat
23Sun1:062.51:102.96:550.27:280.07:004:44Full Moon23Sun
24Mon1:432.61:482.97:350.28:050.06:594:45Full Moon24Mon
25Tue2:192.72:262.98:140.18:41-0.16:584:47Waning Gibbous25Tue
26Wed2:552.73:052.98:550.19:190.06:574:48Waning Gibbous26Wed
27Thu3:322.83:462.89:370.19:590.06:564:49Waning Gibbous27Thu
28Fri4:112.84:312.710:230.110:420.16:564:51Waning Gibbous28Fri
29Sat4:552.85:212.611:130.111:310.16:554:52Third Quarter29Sat
30Sun5:452.96:172.512:090.16:544:53Third Quarter30Sun
31Mon6:402.97:182.412:250.21:100.16:534:54Third Quarter31Mon
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 5:49 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 99% 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 (99% 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