Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide : 7:26 pm (0.6 ft)
Next high tide : in 2h 45m at 1:13 pm (3.9 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:40 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Dec 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:324.67:523.91:07-0.12:130.06:514:12New Moon1Thu
2Fri8:174.58:373.81:46-0.12:500.06:524:12New Moon2Fri
3Sat9:004.39:213.72:28-0.13:260.06:534:12New Moon3Sat
4Sun9:434.110:053.53:110.04:020.06:544:12Waxing Crescent4Sun
5Mon10:253.810:493.33:540.14:390.16:544:12Waxing Crescent5Mon
6Tue11:083.511:343.14:360.25:170.26:554:11Waxing Crescent6Tue
7Wed11:513.25:190.45:570.46:564:11Waxing Crescent7Wed
8Thu12:203.012:343.06:060.56:420.56:574:11First Quarter8Thu
9Fri1:052.91:182.97:020.77:350.56:584:11First Quarter9Fri
10Sat1:492.92:022.88:120.88:330.56:594:12First Quarter10Sat
11Sun2:343.02:502.79:320.79:300.47:004:12First Quarter11Sun
12Mon3:243.13:452.810:380.610:220.27:004:12Waxing Gibbous12Mon
13Tue4:193.34:442.911:300.411:090.07:014:12Waxing Gibbous13Tue
14Wed5:143.55:393.112:150.17:024:12Waxing Gibbous14Wed
15Thu6:043.96:303.412:58-0.17:034:12Waxing Gibbous15Thu
16Fri6:524.27:183.712:39-0.41:42-0.37:034:13Full Moon16Fri
17Sat7:404.48:073.91:25-0.62:28-0.47:044:13Full Moon17Sat
18Sun8:284.68:574.02:13-0.73:15-0.57:054:14Full Moon18Sun
19Mon9:184.69:484.13:03-0.74:01-0.57:054:14Waning Gibbous19Mon
20Tue10:094.510:414.13:54-0.64:46-0.57:064:14Waning Gibbous20Tue
21Wed11:034.311:374.14:45-0.55:31-0.47:064:15Waning Gibbous21Wed
22Thu11:594.15:38-0.26:21-0.27:074:15Third Quarter22Thu
23Fri12:354.012:573.96:390.17:210.07:074:16Third Quarter23Fri
24Sat1:334.01:553.68:070.38:380.17:074:17Third Quarter24Sat
25Sun2:324.02:553.410:030.39:550.27:084:17Third Quarter25Sun
26Mon3:343.93:583.311:130.310:510.17:084:18Waning Crescent26Mon
27Tue4:374.05:013.312:070.27:084:19Waning Crescent27Tue
28Wed5:364.05:583.412:510.17:094:19Waning Crescent28Wed
29Thu6:284.16:483.512:120.11:280.17:094:20Waning Crescent29Thu
30Fri7:154.17:343.512:490.02:000.07:094:21New Moon30Fri
31Sat7:594.18:183.51:28-0.12:320.07:094:22New Moon31Sat
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 4:19 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 transitional phase. Tonight's moon is 66% 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 shifting between spring and neap.

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 Third Quarter (66% illuminated). This places Onset Beach, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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