Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Onset Beach, MA.
Next low tide : in 9m at 5:17 pm (0.3 ft)
Next high tide : 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 - Nov 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:433.13:063.08:501.010:210.86:144:37Third Quarter1Wed
2Thu3:383.14:013.010:080.910:590.76:164:36Waning Crescent2Thu
3Fri4:333.24:533.111:050.711:330.56:174:35Waning Crescent3Fri
4Sat5:213.45:383.211:510.56:184:34Waning Crescent4Sat
5Sun6:033.76:173.412:060.312:320.36:194:32Waning Crescent5Sun
6Mon6:403.96:553.512:390.11:120.16:204:31New Moon6Mon
7Tue7:174.17:333.61:130.01:520.06:224:30New Moon7Tue
8Wed7:554.28:143.71:48-0.12:32-0.16:234:29New Moon8Wed
9Thu8:354.38:573.72:25-0.23:13-0.26:244:28New Moon9Thu
10Fri9:174.39:433.73:04-0.23:53-0.16:254:27Waxing Crescent10Fri
11Sat10:044.310:333.63:45-0.24:34-0.16:274:26Waxing Crescent11Sat
12Sun10:554.211:273.64:29-0.15:170.16:284:25Waxing Crescent12Sun
13Mon11:514.15:160.16:080.26:294:24Waxing Crescent13Mon
14Tue12:253.612:504.06:100.37:110.46:304:23First Quarter14Tue
15Wed1:243.61:503.97:190.58:380.46:314:22First Quarter15Wed
16Thu2:243.72:513.98:550.510:000.36:334:21First Quarter16Thu
17Fri3:263.93:543.910:370.410:550.16:344:20Waxing Gibbous17Fri
18Sat4:304.24:573.911:420.211:380.06:354:20Waxing Gibbous18Sat
19Sun5:304.45:554.112:330.06:364:19Waxing Gibbous19Sun
20Mon6:234.76:474.112:16-0.21:19-0.16:374:18Full Moon20Mon
21Tue7:134.87:364.212:55-0.22:04-0.26:394:18Full Moon21Tue
22Wed8:004.88:234.11:35-0.32:47-0.26:404:17Full Moon22Wed
23Thu8:464.79:094.02:16-0.23:27-0.16:414:16Full Moon23Thu
24Fri9:314.49:553.82:59-0.24:040.06:424:16Waning Gibbous24Fri
25Sat10:174.110:433.63:420.04:400.26:434:15Waning Gibbous25Sat
26Sun11:033.811:313.34:250.15:180.36:444:15Waning Gibbous26Sun
27Mon11:503.55:090.35:590.56:464:14Waning Gibbous27Mon
28Tue12:213.112:383.25:560.56:480.66:474:14Third Quarter28Tue
29Wed1:113.01:253.06:510.77:510.76:484:13Third Quarter29Wed
30Thu1:593.02:102.88:000.88:590.76:494:13Third Quarter30Thu
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 8:15 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 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