Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide : 7:26 pm (0.6 ft)
Next high tide : in 6h 21m at 1:13 pm (3.9 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:40 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Aug 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:573.24:273.910:090.311:390.65:378:00Waning Crescent1Mon
2Tue5:013.45:334.111:150.15:387:58Waning Crescent2Tue
3Wed6:073.76:374.412:410.312:18-0.15:397:57Waning Crescent3Wed
4Thu7:084.07:354.81:340.11:17-0.35:407:56Waning Crescent4Thu
5Fri8:034.48:295.02:25-0.22:14-0.45:427:55New Moon5Fri
6Sat8:564.79:205.13:15-0.33:10-0.55:437:54New Moon6Sat
7Sun9:484.910:115.14:05-0.44:08-0.55:447:52New Moon7Sun
8Mon10:405.011:034.94:51-0.45:02-0.35:457:51Waxing Crescent8Mon
9Tue11:334.911:554.65:33-0.35:54-0.15:467:50Waxing Crescent9Tue
10Wed12:274.86:13-0.26:450.25:477:48Waxing Crescent10Wed
11Thu12:484.21:224.56:550.17:430.55:487:47First Quarter11Thu
12Fri1:433.92:184.37:400.49:140.85:497:46First Quarter12Fri
13Sat2:383.63:144.08:360.610:510.95:507:44First Quarter13Sat
14Sun3:353.44:123.89:440.811:530.95:517:43First Quarter14Sun
15Mon4:343.25:153.710:560.85:527:41Waxing Gibbous15Mon
16Tue5:373.26:143.712:380.911:54 AM0.85:537:40Waxing Gibbous16Tue
17Wed6:343.37:053.71:120.812:410.75:547:38Waxing Gibbous17Wed
18Thu7:223.47:473.81:420.61:230.55:557:37Waxing Gibbous18Thu
19Fri8:043.68:253.92:130.52:050.45:567:35Full Moon19Fri
20Sat8:423.79:003.92:470.32:470.35:577:34Full Moon20Sat
21Sun9:183.89:333.93:220.23:300.25:587:32Full Moon21Sun
22Mon9:523.810:073.93:570.14:110.25:597:31Full Moon22Mon
23Tue10:273.810:423.84:300.14:490.26:007:29Waning Gibbous23Tue
24Wed11:033.811:213.65:020.15:250.36:017:28Waning Gibbous24Wed
25Thu11:423.85:340.16:010.46:027:26Waning Gibbous25Thu
26Fri12:043.512:263.76:070.26:390.56:037:25Waning Gibbous26Fri
27Sat12:513.41:143.76:460.27:260.76:047:23Third Quarter27Sat
28Sun1:433.32:073.87:330.38:270.86:057:21Third Quarter28Sun
29Mon2:393.33:043.88:320.49:500.86:067:20Third Quarter29Mon
30Tue3:373.44:063.99:420.411:230.66:077:18Third Quarter30Tue
31Wed4:423.65:134.110:560.36:087:16Waning Crescent31Wed
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 4:19 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 66% 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 (66% 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