Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Onset Beach, MA.
Next low tide : in 3h 41m at 2:01 pm (-0.1 ft)
Next high tide : 8:17 pm (4.8 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 - Jan 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:123.91:374.07:170.08:01-0.18:095:22First Quarter1Sat
2Sun2:113.92:353.78:360.29:080.08:105:22First Quarter2Sun
3Mon3:093.83:333.510:390.310:210.18:105:23First Quarter3Mon
4Tue4:103.84:343.311:560.311:210.18:105:24Waxing Gibbous4Tue
5Wed5:133.85:373.212:530.28:105:25Waxing Gibbous5Wed
6Thu6:153.86:363.212:070.11:410.28:105:26Waxing Gibbous6Thu
7Fri7:093.97:283.312:460.12:210.18:095:27Waxing Gibbous7Fri
8Sat7:574.08:153.41:250.02:560.18:095:28Full Moon8Sat
9Sun8:413.98:593.42:04-0.13:280.08:095:29Full Moon9Sun
10Mon9:223.99:403.42:46-0.14:000.08:095:30Full Moon10Mon
11Tue10:013.810:203.43:29-0.24:33-0.18:095:31Full Moon11Tue
12Wed10:383.611:003.24:13-0.25:06-0.18:085:32Waning Gibbous12Wed
13Thu11:143.411:393.14:55-0.15:390.08:085:33Waning Gibbous13Thu
14Fri11:503.25:360.06:120.18:085:34Waning Gibbous14Fri
15Sat12:193.012:283.06:170.16:460.18:075:35Waning Gibbous15Sat
16Sun1:002.91:082.86:590.37:220.28:075:37Third Quarter16Sun
17Mon1:432.91:512.77:470.48:050.38:065:38Third Quarter17Mon
18Tue2:272.92:382.68:470.58:570.38:065:39Third Quarter18Tue
19Wed3:143.03:312.69:590.59:570.28:055:40Third Quarter19Wed
20Thu4:083.14:312.711:140.410:590.18:055:41Waning Crescent20Thu
21Fri5:103.35:372.812:180.28:045:43Waning Crescent21Fri
22Sat6:123.66:393.11:11-0.18:045:44Waning Crescent22Sat
23Sun7:104.07:353.512:53-0.42:01-0.38:035:45Waning Crescent23Sun
24Mon8:034.48:273.81:46-0.62:50-0.68:025:46New Moon24Mon
25Tue8:544.69:184.12:39-0.83:40-0.78:015:47New Moon25Tue
26Wed9:444.710:094.23:33-0.94:29-0.88:015:49New Moon26Wed
27Thu10:354.711:014.34:27-0.95:14-0.88:005:50Waxing Crescent27Thu
28Fri11:274.511:554.35:20-0.85:57-0.77:595:51Waxing Crescent28Fri
29Sat12:204.26:12-0.56:39-0.57:585:52Waxing Crescent29Sat
30Sun12:504.11:153.97:07-0.27:24-0.37:575:54First Quarter30Sun
31Mon1:474.02:113.68:170.18:160.07:565:55First Quarter31Mon
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 5:09 pm — 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