Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in Onset Beach, MA.
Next low tide : in 2h 36m at 4:44 pm (-0.1 ft)
Next high tide : 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 - Jun 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:383.99:024.63:030.12:300.15:108:10Full Moon1Thu
2Fri9:243.99:464.53:420.13:130.15:098:10Full Moon2Fri
3Sat10:093.810:294.24:190.13:570.25:098:11Full Moon3Sat
4Sun10:533.711:124.04:550.24:420.35:098:12Waning Gibbous4Sun
5Mon11:373.511:543.75:310.25:250.45:088:12Waning Gibbous5Mon
6Tue12:223.46:080.36:090.55:088:13Waning Gibbous6Tue
7Wed12:373.51:073.36:460.46:550.75:088:14Waning Gibbous7Wed
8Thu1:193.21:513.27:280.57:470.85:078:14Third Quarter8Thu
9Fri2:013.12:333.28:150.68:500.95:078:15Third Quarter9Fri
10Sat2:433.03:163.29:080.610:050.95:078:16Third Quarter10Sat
11Sun3:292.94:023.310:020.511:140.85:078:16Third Quarter11Sun
12Mon4:202.94:543.510:550.45:078:17Waning Crescent12Mon
13Tue5:193.05:503.712:090.611:44 AM0.35:078:17Waning Crescent13Tue
14Wed6:183.26:444.012:570.412:320.15:078:18Waning Crescent14Wed
15Thu7:123.47:344.31:420.21:19-0.15:078:18Waning Crescent15Thu
16Fri8:023.78:234.62:270.02:06-0.25:078:18New Moon16Fri
17Sat8:524.09:124.73:15-0.22:55-0.35:078:19New Moon17Sat
18Sun9:424.210:024.84:04-0.33:47-0.45:078:19New Moon18Sun
19Mon10:344.310:544.84:52-0.34:40-0.35:078:20Waxing Crescent19Mon
20Tue11:274.411:474.65:37-0.35:32-0.25:078:20Waxing Crescent20Tue
21Wed12:224.46:22-0.26:260.05:078:20Waxing Crescent21Wed
22Thu12:424.41:194.47:09-0.17:250.25:078:20First Quarter22Thu
23Fri1:394.22:164.48:040.18:430.55:088:20First Quarter23Fri
24Sat2:363.93:134.39:080.210:330.65:088:21First Quarter24Sat
25Sun3:333.74:124.310:160.311:490.65:088:21First Quarter25Sun
26Mon4:343.55:134.311:150.45:098:21Waxing Gibbous26Mon
27Tue5:383.56:144.312:460.512:040.45:098:21Waxing Gibbous27Tue
28Wed6:383.57:094.31:330.512:460.45:098:21Waxing Gibbous28Wed
29Thu7:313.67:584.32:120.41:260.45:108:21Waxing Gibbous29Thu
30Fri8:193.78:434.32:470.42:080.35:108:21Full Moon30Fri
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 7:42 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 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