Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 3h 26m at 11:25 pm (0.2 ft)
Next high tide (tomorrow) : 5:43 am (3.1 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - May 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:492.91:182.77:030.17:110.35:367:38New Moon1Wed
2Thu1:263.01:582.77:420.07:490.35:357:39New Moon2Thu
3Fri2:033.02:362.78:210.08:270.35:347:40New Moon3Fri
4Sat2:402.93:152.78:590.19:060.45:337:42Waxing Crescent4Sat
5Sun3:182.93:542.69:380.19:460.45:317:43Waxing Crescent5Sun
6Mon3:572.94:342.610:180.110:260.55:307:44Waxing Crescent6Mon
7Tue4:372.85:162.511:000.211:100.55:297:45Waxing Crescent7Tue
8Wed5:202.86:012.511:440.211:570.55:287:46Waxing Crescent8Wed
9Thu6:072.76:492.512:310.35:277:47First Quarter9Thu
10Fri6:582.77:382.612:480.51:210.35:257:48First Quarter10Fri
11Sat7:522.78:292.71:420.52:120.35:247:49First Quarter11Sat
12Sun8:482.79:202.82:380.43:040.25:237:50Waxing Gibbous12Sun
13Mon9:452.810:133.03:340.23:570.25:227:51Waxing Gibbous13Mon
14Tue10:422.811:053.24:310.14:510.15:217:52Waxing Gibbous14Tue
15Wed11:382.911:563.35:27-0.15:430.05:207:53Waxing Gibbous15Wed
16Thu12:323.06:20-0.36:35-0.15:197:54Full Moon16Thu
17Fri12:473.51:253.17:13-0.47:27-0.15:187:55Full Moon17Fri
18Sat1:383.52:203.18:05-0.58:19-0.25:177:56Full Moon18Sat
19Sun2:323.53:153.18:58-0.59:12-0.15:177:57Waning Gibbous19Sun
20Mon3:273.54:103.09:52-0.410:070.05:167:58Waning Gibbous20Mon
21Tue4:223.45:073.010:46-0.311:030.15:157:59Waning Gibbous21Tue
22Wed5:203.26:052.911:41-0.25:148:00Third Quarter22Wed
23Thu6:203.07:052.812:020.212:390.05:138:01Third Quarter23Thu
24Fri7:222.98:052.81:040.31:380.15:138:02Third Quarter24Fri
25Sat8:252.89:022.82:070.32:350.25:128:02Third Quarter25Sat
26Sun9:272.79:572.83:090.33:300.35:118:03Waning Crescent26Sun
27Mon10:272.610:492.84:090.34:240.45:118:04Waning Crescent27Mon
28Tue11:212.611:362.95:050.35:140.45:108:05Waning Crescent28Tue
29Wed12:092.65:540.25:590.45:108:06Waning Crescent29Wed
30Thu12:182.912:522.66:380.26:400.45:098:07New Moon30Thu
31Fri12:572.91:332.67:180.17:200.45:088:07New Moon31Fri
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 2:34 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 27% 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 Crescent (27% 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