Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide (tomorrow) : 9:14 am (0.7 ft)
Next high tide (tomorrow) : in 3h 42m at 3:17 am (3.0 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - Apr 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:474.48:134.71:52-0.52:21-0.56:237:08Full Moon1Fri
2Sat8:384.59:024.92:46-0.63:03-0.66:217:09Full Moon2Sat
3Sun9:274.59:515.03:37-0.73:45-0.66:207:11Full Moon3Sun
4Mon10:154.410:394.84:26-0.64:26-0.56:187:12Full Moon4Mon
5Tue11:034.111:284.55:11-0.55:06-0.36:167:13Waning Gibbous5Tue
6Wed11:533.95:52-0.25:46-0.16:157:14Waning Gibbous6Wed
7Thu12:194.212:453.56:320.16:270.26:137:15Waning Gibbous7Thu
8Fri1:113.81:383.37:160.47:120.46:117:16Third Quarter8Fri
9Sat2:053.42:313.18:110.68:080.76:107:17Third Quarter9Sat
10Sun2:593.23:262.99:320.89:220.86:087:18Third Quarter10Sun
11Mon3:553.04:232.910:570.810:540.86:067:19Third Quarter11Mon
12Tue4:552.95:233.011:480.76:057:20Waning Crescent12Tue
13Wed5:532.96:173.112:000.612:270.56:037:22Waning Crescent13Wed
14Thu6:423.17:013.312:480.41:030.36:027:23Waning Crescent14Thu
15Fri7:223.27:393.61:300.21:380.16:007:24Waning Crescent15Fri
16Sat7:583.48:153.82:100.12:120.05:597:25New Moon16Sat
17Sun8:343.58:503.92:50-0.12:47-0.15:577:26New Moon17Sun
18Mon9:113.69:264.03:30-0.23:23-0.25:557:27New Moon18Mon
19Tue9:503.610:044.14:09-0.23:59-0.25:547:28New Moon19Tue
20Wed10:323.610:464.14:46-0.24:37-0.25:527:29Waxing Crescent20Wed
21Thu11:183.611:324.05:22-0.25:16-0.25:517:30Waxing Crescent21Thu
22Fri12:073.56:00-0.15:58-0.15:497:31Waxing Crescent22Fri
23Sat12:233.91:013.56:440.16:450.15:487:33Waxing Crescent23Sat
24Sun1:193.81:583.57:360.27:420.25:477:34First Quarter24Sun
25Mon2:183.82:563.58:460.48:530.45:457:35First Quarter25Mon
26Tue3:193.73:573.710:220.410:210.35:447:36First Quarter26Tue
27Wed4:233.85:013.911:370.211:480.25:427:37Waxing Gibbous27Wed
28Thu5:303.86:044.212:280.05:417:38Waxing Gibbous28Thu
29Fri6:324.07:024.612:530.01:11-0.15:407:39Waxing Gibbous29Fri
30Sat7:284.17:544.81:47-0.21:51-0.25:387:40Waxing Gibbous30Sat
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 6:15 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 neap phase. Tonight's moon is 52% 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 minimum.

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 First Quarter (52% illuminated). This places Onset Beach, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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