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 5h 06m 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 - Feb 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:213.95:513.512:25-0.26:554:57Waxing Gibbous1Wed
2Thu6:214.26:474.012:04-0.61:15-0.56:544:58Waxing Gibbous2Thu
3Fri7:144.57:404.31:01-0.82:04-0.76:534:59Full Moon3Fri
4Sat8:064.78:314.61:57-1.02:52-0.86:525:00Full Moon4Sat
5Sun8:564.79:224.72:53-1.03:37-0.96:515:02Full Moon5Sun
6Mon9:464.610:134.63:46-0.94:18-0.86:505:03Waning Gibbous6Mon
7Tue10:364.311:064.44:36-0.74:56-0.76:495:04Waning Gibbous7Tue
8Wed11:283.95:23-0.45:35-0.46:475:06Waning Gibbous8Wed
9Thu12:004.212:223.66:130.06:18-0.16:465:07Third Quarter9Thu
10Fri12:563.81:173.27:140.37:070.26:455:08Third Quarter10Fri
11Sat1:523.52:133.09:070.58:100.46:445:09Third Quarter11Sat
12Sun2:513.33:132.810:330.69:300.56:425:11Third Quarter12Sun
13Mon3:553.14:182.711:280.610:460.56:415:12Waning Crescent13Mon
14Tue4:593.15:192.812:070.56:405:13Waning Crescent14Tue
15Wed5:543.26:103.012:390.36:395:14Waning Crescent15Wed
16Thu6:393.36:533.112:190.21:090.26:375:16Waning Crescent16Thu
17Fri7:173.47:313.31:000.01:410.06:365:17New Moon17Fri
18Sat7:513.58:063.41:41-0.12:15-0.26:345:18New Moon18Sat
19Sun8:243.58:403.52:22-0.32:49-0.36:335:19New Moon19Sun
20Mon8:573.59:143.53:02-0.33:21-0.36:325:21New Moon20Mon
21Tue9:313.49:483.53:39-0.33:51-0.36:305:22Waxing Crescent21Tue
22Wed10:073.310:253.44:14-0.24:22-0.36:295:23Waxing Crescent22Wed
23Thu10:473.211:063.44:48-0.24:54-0.36:275:24Waxing Crescent23Thu
24Fri11:333.111:533.35:230.05:29-0.26:265:25Waxing Crescent24Fri
25Sat12:233.06:040.16:13-0.16:245:27First Quarter25Sat
26Sun12:453.31:182.96:570.37:070.06:235:28First Quarter26Sun
27Mon1:413.32:162.98:100.48:140.16:215:29First Quarter27Mon
28Tue2:433.43:203.19:490.39:320.06:205:30First Quarter28Tue
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