Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Onset Beach, MA.
Next low tide : in 5h 29m at 2:58 pm (-0.2 ft)
Next high tide : 9:07 pm (4.8 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 5:48 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Nov 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:234.16:433.812:230.41:030.46:144:37Waxing Gibbous1Sat
2Sun7:054.27:243.812:470.21:330.36:154:36Full Moon2Sun
3Mon7:444.28:023.71:180.12:070.26:174:35Full Moon3Mon
4Tue8:204.18:393.61:530.12:440.16:184:34Full Moon4Tue
5Wed8:544.09:163.52:310.13:220.16:194:33Full Moon5Wed
6Thu9:283.89:533.43:110.14:000.26:204:31Waning Gibbous6Thu
7Fri10:033.710:333.23:490.24:360.36:224:30Waning Gibbous7Fri
8Sat10:403.511:163.14:280.35:120.46:234:29Waning Gibbous8Sat
9Sun11:233.35:070.45:500.66:244:28Waning Gibbous9Sun
10Mon12:023.012:113.35:490.56:340.76:254:27Third Quarter10Mon
11Tue12:523.01:023.26:400.77:320.76:264:26Third Quarter11Tue
12Wed1:433.11:563.37:450.78:410.66:284:25Third Quarter12Wed
13Thu2:373.32:533.39:020.69:460.46:294:24Third Quarter13Thu
14Fri3:343.63:553.510:160.410:400.16:304:23Waning Crescent14Fri
15Sat4:353.94:583.711:180.111:29-0.26:314:22Waning Crescent15Sat
16Sun5:324.45:564.012:13-0.26:334:21Waning Crescent16Sun
17Mon6:264.86:504.212:15-0.41:04-0.46:344:21New Moon17Mon
18Tue7:185.17:424.41:02-0.61:56-0.66:354:20New Moon18Tue
19Wed8:095.28:344.51:50-0.72:49-0.66:364:19New Moon19Wed
20Thu9:015.29:264.42:41-0.73:42-0.56:374:18Waxing Crescent20Thu
21Fri9:535.010:214.33:32-0.64:33-0.46:394:18Waxing Crescent21Fri
22Sat10:484.811:174.14:23-0.35:23-0.16:404:17Waxing Crescent22Sat
23Sun11:454.45:150.06:180.16:414:16Waxing Crescent23Sun
24Mon12:163.912:434.16:110.37:370.46:424:16First Quarter24Mon
25Tue1:153.81:413.87:300.69:080.56:434:15First Quarter25Tue
26Wed2:133.72:383.59:460.710:070.56:444:15First Quarter26Wed
27Thu3:123.63:373.310:510.710:470.56:454:14Waxing Gibbous27Thu
28Fri4:123.64:353.211:370.611:140.46:474:14Waxing Gibbous28Fri
29Sat5:093.75:293.212:110.56:484:13Waxing Gibbous29Sat
30Sun5:583.76:153.312:410.46:494:13Waxing Gibbous30Sun
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 6:02 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 0% 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 (0% 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