Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Onset Beach, MA.
Next low tide : in 2h 57m at 9:29 am (0.3 ft)
Next high tide : 4:04 pm (4.1 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:43 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Feb 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:183.912:393.36:420.26:30-0.16:554:56First Quarter1Fri
2Sat1:123.71:332.98:010.57:180.26:544:58First Quarter2Sat
3Sun2:073.42:282.79:500.68:160.46:534:59First Quarter3Sun
4Mon3:073.13:292.511:010.69:250.56:525:00First Quarter4Mon
5Tue4:153.04:362.511:520.610:360.56:515:01Waxing Gibbous5Tue
6Wed5:213.05:362.612:320.56:505:03Waxing Gibbous6Wed
7Thu6:143.16:252.81:060.46:495:04Waxing Gibbous7Thu
8Fri6:563.27:073.012:230.21:390.26:485:05Waxing Gibbous8Fri
9Sat7:323.47:443.21:070.02:120.16:465:07Full Moon9Sat
10Sun8:043.48:203.31:50-0.12:45-0.16:455:08Full Moon10Sun
11Mon8:353.58:543.42:33-0.23:15-0.26:445:09Full Moon11Mon
12Tue9:063.49:283.43:13-0.33:43-0.36:435:10Full Moon12Tue
13Wed9:393.410:033.43:50-0.34:08-0.36:415:12Waning Gibbous13Wed
14Thu10:163.210:413.44:25-0.24:35-0.36:405:13Waning Gibbous14Thu
15Fri10:563.111:233.45:00-0.15:04-0.26:395:14Waning Gibbous15Fri
16Sat11:432.95:380.05:39-0.16:375:15Waning Gibbous16Sat
17Sun12:103.412:342.86:230.26:230.06:365:17Third Quarter17Sun
18Mon1:033.41:312.77:220.47:200.16:355:18Third Quarter18Mon
19Tue2:023.42:322.78:460.58:320.16:335:19Third Quarter19Tue
20Wed3:083.43:412.810:340.49:550.16:325:20Waning Crescent20Wed
21Thu4:223.64:533.111:460.111:15-0.26:305:22Waning Crescent21Thu
22Fri5:303.95:563.512:38-0.16:295:23Waning Crescent22Fri
23Sat6:294.26:523.912:21-0.41:25-0.46:275:24Waning Crescent23Sat
24Sun7:214.47:434.31:20-0.62:08-0.66:265:25New Moon24Sun
25Mon8:094.58:324.52:16-0.82:49-0.76:245:26New Moon25Mon
26Tue8:574.59:204.63:09-0.83:26-0.76:235:28New Moon26Tue
27Wed9:434.210:084.53:58-0.74:02-0.76:215:29Waxing Crescent27Wed
28Thu10:303.910:564.24:41-0.54:36-0.56:205:30Waxing Crescent28Thu
29Fri11:193.511:473.95:22-0.25:12-0.36:185:31Waxing Crescent29Fri
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 12:46 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 transitional phase. Tonight's moon is 32% 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 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 Third Quarter (32% illuminated). This places Onset Beach, 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