Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide : 2:01 pm (-0.1 ft)
Next high tide : in 1h 05m at 7:48 am (4.1 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:47 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Apr 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:463.14:142.911:330.710:220.86:257:07First Quarter1Sat
2Sun4:513.05:162.912:200.76:237:08Waxing Gibbous2Sun
3Mon5:553.06:153.112:550.66:217:10Waxing Gibbous3Mon
4Tue6:473.17:033.312:360.51:240.46:207:11Waxing Gibbous4Tue
5Wed7:293.27:433.51:190.31:530.26:187:12Waxing Gibbous5Wed
6Thu8:043.38:203.61:590.12:240.16:167:13Waxing Gibbous6Thu
7Fri8:373.48:543.82:40-0.12:560.06:157:14Full Moon7Fri
8Sat9:103.59:273.93:20-0.23:28-0.16:137:15Full Moon8Sat
9Sun9:443.510:013.93:59-0.24:01-0.26:117:16Full Moon9Sun
10Mon10:213.410:383.94:36-0.24:33-0.16:107:17Full Moon10Mon
11Tue11:013.411:183.85:12-0.25:06-0.16:087:18Waning Gibbous11Tue
12Wed11:453.35:47-0.15:420.06:067:19Waning Gibbous12Wed
13Thu12:033.712:343.26:250.06:230.16:057:20Waning Gibbous13Thu
14Fri12:553.71:293.17:100.27:110.26:037:22Third Quarter14Fri
15Sat1:513.62:263.18:080.48:120.36:027:23Third Quarter15Sat
16Sun2:513.63:263.29:270.49:300.46:007:24Third Quarter16Sun
17Mon3:543.64:303.510:590.311:000.35:597:25Third Quarter17Mon
18Tue5:013.85:363.812:050.15:577:26Waning Crescent18Tue
19Wed6:074.06:374.212:190.012:54-0.15:557:27Waning Crescent19Wed
20Thu7:064.27:324.61:20-0.21:37-0.35:547:28Waning Crescent20Thu
21Fri7:594.48:234.92:15-0.42:19-0.45:527:29New Moon21Fri
22Sat8:494.49:125.03:07-0.53:01-0.55:517:30New Moon22Sat
23Sun9:374.410:005.03:58-0.53:43-0.55:497:31New Moon23Sun
24Mon10:264.210:484.84:46-0.44:26-0.45:487:32Waxing Crescent24Mon
25Tue11:154.011:374.45:28-0.35:07-0.25:477:34Waxing Crescent25Tue
26Wed12:053.76:080.05:490.15:457:35Waxing Crescent26Wed
27Thu12:284.012:583.56:490.36:330.35:447:36Waxing Crescent27Thu
28Fri1:213.71:513.37:370.67:220.65:427:37First Quarter28Fri
29Sat2:153.32:453.18:460.88:220.85:417:38First Quarter29Sat
30Sun3:093.13:393.010:220.89:410.95:407:39First Quarter30Sun
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 10:54 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 2% 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 New Moon (2% 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