Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Onset Beach, MA.
Next low tide : in 1h 04m at 10:42 am (0.3 ft)
Next high tide : 5:14 pm (4.2 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Nov 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:143.55:373.312:060.76:144:37Waxing Gibbous1Tue
2Wed6:003.76:183.412:030.512:360.56:154:36Waxing Gibbous2Wed
3Thu6:393.96:553.412:270.31:090.46:174:35Waxing Gibbous3Thu
4Fri7:144.07:303.412:560.21:450.26:184:34Full Moon4Fri
5Sat7:474.08:053.41:290.12:230.26:194:32Full Moon5Sat
6Sun8:184.08:403.32:040.13:010.26:204:31Full Moon6Sun
7Mon8:503.99:173.32:400.13:380.26:224:30Full Moon7Mon
8Tue9:253.89:573.13:170.24:130.36:234:29Waning Gibbous8Tue
9Wed10:053.710:413.03:540.34:480.46:244:28Waning Gibbous9Wed
10Thu10:513.511:312.94:330.35:250.66:254:27Waning Gibbous10Thu
11Fri11:433.55:150.46:100.76:264:26Waning Gibbous11Fri
12Sat12:262.912:403.46:050.67:100.76:284:25Third Quarter12Sat
13Sun1:223.11:383.47:090.68:330.76:294:24Third Quarter13Sun
14Mon2:183.32:373.58:320.69:440.46:304:23Third Quarter14Mon
15Tue3:183.63:393.69:590.410:350.26:314:22Waning Crescent15Tue
16Wed4:194.04:423.711:100.211:20-0.16:334:21Waning Crescent16Wed
17Thu5:184.45:423.912:07-0.16:344:21Waning Crescent17Thu
18Fri6:124.86:364.012:03-0.312:59-0.36:354:20New Moon18Fri
19Sat7:045.17:284.112:47-0.51:51-0.46:364:19New Moon19Sat
20Sun7:545.28:194.11:32-0.52:43-0.46:374:18New Moon20Sun
21Mon8:455.19:094.02:20-0.53:35-0.36:394:18New Moon21Mon
22Tue9:364.810:013.93:09-0.44:23-0.16:404:17Waxing Crescent22Tue
23Wed10:294.510:563.73:58-0.15:100.16:414:16Waxing Crescent23Wed
24Thu11:254.111:523.54:470.15:580.46:424:16Waxing Crescent24Thu
25Fri12:223.75:380.46:590.66:434:15First Quarter25Fri
26Sat12:503.31:183.46:370.78:260.76:444:15First Quarter26Sat
27Sun1:473.22:123.28:080.99:270.76:454:14First Quarter27Sun
28Mon2:433.23:053.09:570.910:060.76:474:14First Quarter28Mon
29Tue3:393.24:002.910:510.810:370.66:484:13Waxing Gibbous29Tue
30Wed4:353.34:532.911:320.711:090.46:494:13Waxing Gibbous30Wed
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 1:58 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 22% 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 Waning Crescent (22% 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