Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide : 2:01 pm (-0.1 ft)
Next high tide : in 3h 03m at 7:48 am (4.1 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:47 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Jun 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:512.85:313.311:360.65:108:10Waxing Gibbous1Thu
2Fri5:452.96:193.512:180.612:160.45:098:11Waxing Gibbous2Fri
3Sat6:353.07:023.81:040.412:540.25:098:12Waxing Gibbous3Sat
4Sun7:203.27:434.01:460.21:330.15:088:12Waxing Gibbous4Sun
5Mon8:043.48:254.22:280.12:120.05:088:13Full Moon5Mon
6Tue8:483.69:084.43:11-0.12:53-0.15:088:14Full Moon6Tue
7Wed9:343.79:534.53:55-0.13:38-0.15:078:14Full Moon7Wed
8Thu10:223.810:414.54:39-0.24:24-0.15:078:15Waning Gibbous8Thu
9Fri11:123.811:324.45:22-0.25:11-0.15:078:15Waning Gibbous9Fri
10Sat12:053.86:06-0.16:010.15:078:16Waning Gibbous10Sat
11Sun12:274.31:013.96:530.06:540.25:078:17Waning Gibbous11Sun
12Mon1:234.21:583.97:460.27:590.45:078:17Third Quarter12Mon
13Tue2:214.02:564.08:510.29:300.55:078:18Third Quarter13Tue
14Wed3:183.93:544.110:010.311:140.55:078:18Third Quarter14Wed
15Thu4:193.84:564.311:010.25:078:18Waning Crescent15Thu
16Fri5:223.75:584.412:230.411:52 AM0.25:078:19Waning Crescent16Fri
17Sat6:233.76:554.61:170.312:360.15:078:19Waning Crescent17Sat
18Sun7:193.87:474.72:050.21:190.15:078:19Waning Crescent18Sun
19Mon8:103.98:364.72:510.12:010.15:078:20New Moon19Mon
20Tue8:593.99:224.63:350.12:450.15:078:20New Moon20Tue
21Wed9:453.910:074.44:150.13:310.15:078:20New Moon21Wed
22Thu10:313.810:514.24:500.24:170.25:088:20Waxing Crescent22Thu
23Fri11:173.711:343.95:240.35:020.35:088:21Waxing Crescent23Fri
24Sat12:023.55:580.35:470.45:088:21Waxing Crescent24Sat
25Sun12:173.612:493.46:340.46:320.65:088:21Waxing Crescent25Sun
26Mon1:013.41:353.37:130.57:210.75:098:21First Quarter26Mon
27Tue1:433.22:193.27:580.68:180.95:098:21First Quarter27Tue
28Wed2:243.03:013.28:480.79:260.95:108:21First Quarter28Wed
29Thu3:062.93:453.39:410.710:370.95:108:21First Quarter29Thu
30Fri3:522.84:333.410:330.611:380.75:118:21First Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447277)

Common Questions About Onset Beach, MA Tides

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What time does the tide turn (slack tide) in Onset Beach, MA today?

Slack tide in Onset Beach, MA is approximately 10:54 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 Onset Beach, MA?

Onset Beach, MA is currently in a spring phase. Tonight's moon is 2% 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 Onset Beach, 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 Onset Beach, MA?

Tide predictions for Onset Beach, 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 Onset Beach, MA?

Tide data for Onset Beach, MA is sourced from NOAA Station #8447277. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447277.

What is the moon phase in Onset Beach, MA tonight?

Tonight the moon over Onset Beach, MA is New Moon (2% illuminated). This places Onset Beach, 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