Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide (tomorrow) : 5:12 am (-0.1 ft)
Next high tide : in 1h 21m at 10:41 pm (4.5 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Nov 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:313.02:493.09:061.09:490.86:144:38First Quarter1Tue
2Wed3:223.13:413.010:200.810:360.66:154:36Waxing Gibbous2Wed
3Thu4:153.34:353.111:140.611:150.36:164:35Waxing Gibbous3Thu
4Fri5:053.55:263.311:590.411:530.16:184:34Waxing Gibbous4Fri
5Sat5:523.96:133.512:400.16:194:33Waxing Gibbous5Sat
6Sun6:364.26:593.812:30-0.11:21-0.16:204:32Full Moon6Sun
7Mon7:194.57:443.91:10-0.32:04-0.26:214:31Full Moon7Mon
8Tue8:054.68:324.01:51-0.42:49-0.36:224:29Full Moon8Tue
9Wed8:524.79:214.12:36-0.43:35-0.36:244:28Waning Gibbous9Wed
10Thu9:424.710:134.03:23-0.44:21-0.26:254:27Waning Gibbous10Thu
11Fri10:354.511:083.94:11-0.35:080.06:264:26Waning Gibbous11Fri
12Sat11:324.35:02-0.16:010.16:274:25Waning Gibbous12Sat
13Sun12:073.912:314.15:570.27:100.36:294:24Third Quarter13Sun
14Mon1:073.91:314.07:060.48:560.46:304:23Third Quarter14Mon
15Tue2:073.92:313.88:550.510:050.36:314:23Third Quarter15Tue
16Wed3:074.03:333.710:350.510:550.36:324:22Waning Crescent16Wed
17Thu4:104.14:363.611:350.311:340.26:334:21Waning Crescent17Thu
18Fri5:104.35:343.712:220.26:354:20Waning Crescent18Fri
19Sat6:034.46:263.712:050.11:020.26:364:19Waning Crescent19Sat
20Sun6:524.57:133.812:360.11:380.16:374:19New Moon20Sun
21Mon7:374.57:573.81:100.02:120.16:384:18New Moon21Mon
22Tue8:204.48:403.71:470.02:480.16:394:17New Moon22Tue
23Wed9:014.29:213.62:280.03:240.16:414:17New Moon23Wed
24Thu9:424.010:033.43:100.14:020.26:424:16Waxing Crescent24Thu
25Fri10:223.710:453.23:530.24:390.26:434:15Waxing Crescent25Fri
26Sat11:033.511:293.14:350.35:170.46:444:15Waxing Crescent26Sat
27Sun11:453.25:180.45:570.56:454:14Waxing Crescent27Sun
28Mon12:143.012:283.06:040.66:430.66:464:14First Quarter28Mon
29Tue12:592.91:122.96:580.87:350.66:474:14First Quarter29Tue
30Wed1:442.91:582.88:080.88:330.56:484:13First Quarter30Wed
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 1:56 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 5% 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 Waxing Crescent (5% 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