Tides Today & Tomorrow in Onset Beach, MA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Onset Beach, MA.
Next low tide : 2:01 pm (-0.1 ft)
Next high tide : in 1h 58m at 7:48 am (4.1 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:47 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8447277
Common Questions About Tides

Onset Beach, MA Tides - May 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:042.94:353.011:190.811:040.85:387:40First Quarter1Mon
2Tue5:032.95:323.111:590.75:377:41Waxing Gibbous2Tue
3Wed5:582.96:233.312:040.712:330.55:367:42Waxing Gibbous3Wed
4Thu6:443.07:063.512:520.51:070.35:347:43Waxing Gibbous4Thu
5Fri7:233.27:433.71:340.31:400.25:337:44Waxing Gibbous5Fri
6Sat8:003.38:193.92:150.12:140.05:327:45Full Moon6Sat
7Sun8:373.48:554.12:550.02:490.05:317:47Full Moon7Sun
8Mon9:153.59:334.23:36-0.13:25-0.15:307:48Full Moon8Mon
9Tue9:563.610:134.24:16-0.24:03-0.15:287:49Full Moon9Tue
10Wed10:403.510:584.24:54-0.24:42-0.15:277:50Waning Gibbous10Wed
11Thu11:283.511:464.15:33-0.15:240.05:267:51Waning Gibbous11Thu
12Fri12:203.56:140.06:080.15:257:52Waning Gibbous12Fri
13Sat12:404.01:163.57:000.27:000.35:247:53Waning Gibbous13Sat
14Sun1:383.92:133.57:580.38:030.45:237:54Third Quarter14Sun
15Mon2:363.93:113.69:120.49:260.55:227:55Third Quarter15Mon
16Tue3:373.84:123.810:330.311:050.45:217:56Third Quarter16Tue
17Wed4:403.85:164.111:350.25:207:57Waning Crescent17Wed
18Thu5:443.96:174.412:210.212:230.05:197:58Waning Crescent18Thu
19Fri6:444.07:134.71:180.01:06-0.15:187:59Waning Crescent19Fri
20Sat7:394.18:044.92:09-0.11:47-0.25:178:00New Moon20Sat
21Sun8:294.28:534.92:58-0.22:28-0.25:178:01New Moon21Sun
22Mon9:184.19:404.83:46-0.23:12-0.25:168:02New Moon22Mon
23Tue10:054.010:274.64:31-0.13:56-0.15:158:03New Moon23Tue
24Wed10:533.911:144.35:100.04:400.15:148:03Waxing Crescent24Wed
25Thu11:423.75:470.25:240.25:148:04Waxing Crescent25Thu
26Fri12:014.012:313.56:240.36:090.45:138:05Waxing Crescent26Fri
27Sat12:503.61:223.37:050.56:560.65:128:06Waxing Crescent27Sat
28Sun1:403.42:123.27:530.77:510.85:128:07First Quarter28Sun
29Mon2:273.13:013.18:540.89:000.95:118:08First Quarter29Mon
30Tue3:133.03:493.19:580.810:170.95:118:09First Quarter30Tue
31Wed4:002.94:393.210:510.711:250.85:108:09First Quarter31Wed
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 10:54 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 2% 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 New Moon (2% 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