Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide (tomorrow) : 5:38 am (0.1 ft)
Next high tide : in 4h 02m at 11:13 pm (3.8 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Sep 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:573.82:294.17:430.510:050.86:087:16Third Quarter1Fri
2Sat2:533.53:273.88:410.711:190.96:097:15Third Quarter2Sat
3Sun3:503.34:283.69:520.96:107:13Third Quarter3Sun
4Mon4:513.25:313.612:140.911:06 AM0.96:117:11Waning Crescent4Mon
5Tue5:523.36:293.612:550.812:040.86:127:10Waning Crescent5Tue
6Wed6:463.47:163.71:260.712:500.66:137:08Waning Crescent6Wed
7Thu7:313.67:553.81:540.61:320.56:147:06Waning Crescent7Thu
8Fri8:113.78:303.82:230.42:140.36:157:04New Moon8Fri
9Sat8:483.89:033.92:550.32:560.26:167:03New Moon9Sat
10Sun9:233.99:363.93:290.23:370.16:177:01New Moon10Sun
11Mon9:573.910:103.84:020.14:180.16:186:59New Moon11Mon
12Tue10:323.910:463.74:330.14:550.26:196:58Waxing Crescent12Tue
13Wed11:103.911:263.65:040.25:310.36:206:56Waxing Crescent13Wed
14Thu11:513.85:360.26:080.46:216:54Waxing Crescent14Thu
15Fri12:113.412:373.86:100.36:490.56:226:52Waxing Crescent15Fri
16Sat1:013.31:283.86:510.47:390.66:236:51First Quarter16Sat
17Sun1:553.32:233.87:420.58:460.76:246:49First Quarter17Sun
18Mon2:533.33:223.98:470.510:140.76:256:47First Quarter18Mon
19Tue3:543.44:264.010:050.511:380.56:266:45Waxing Gibbous19Tue
20Wed5:003.65:344.211:240.36:276:44Waxing Gibbous20Wed
21Thu6:054.06:364.512:360.312:330.16:286:42Waxing Gibbous21Thu
22Fri7:044.47:324.81:230.01:32-0.26:296:40Waxing Gibbous22Fri
23Sat7:584.88:244.92:08-0.22:26-0.36:316:38Full Moon23Sat
24Sun8:495.19:145.02:51-0.43:21-0.46:326:37Full Moon24Sun
25Mon9:395.210:034.83:35-0.44:14-0.46:336:35Full Moon25Mon
26Tue10:285.110:524.64:17-0.45:03-0.26:346:33Waning Gibbous26Tue
27Wed11:184.911:434.34:59-0.25:490.06:356:32Waning Gibbous27Wed
28Thu12:104.65:390.06:340.36:366:30Waning Gibbous28Thu
29Fri12:363.91:044.26:210.37:240.66:376:28Third Quarter29Fri
30Sat1:313.62:003.97:060.68:460.96:386:26Third Quarter30Sat
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 2:25 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 91% 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 Waning Gibbous (91% 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