Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Osterville, MA.
Next low tide : in 5h 29m at 11:35 am (0.4 ft)
Next high tide : 6:22 pm (2.5 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - Aug 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:242.310:382.73:440.23:550.35:357:59Waxing Gibbous1Tue
2Wed11:182.411:302.84:380.04:480.25:367:58Waxing Gibbous2Wed
3Thu12:092.55:29-0.15:400.15:377:57Full Moon3Thu
4Fri12:213.012:592.66:19-0.26:310.05:387:56Full Moon4Fri
5Sat1:123.01:502.77:09-0.37:23-0.15:397:54Full Moon5Sat
6Sun2:053.12:422.87:58-0.48:16-0.25:407:53Waning Gibbous6Sun
7Mon2:583.13:332.98:48-0.49:09-0.25:417:52Waning Gibbous7Mon
8Tue3:523.04:252.99:39-0.310:04-0.25:427:51Waning Gibbous8Tue
9Wed4:472.95:192.910:31-0.211:02-0.15:437:49Third Quarter9Wed
10Thu5:452.76:152.811:26-0.15:457:48Third Quarter10Thu
11Fri6:462.67:142.712:020.012:230.15:467:47Third Quarter11Fri
12Sat7:492.58:142.71:040.01:210.25:477:45Third Quarter12Sat
13Sun8:542.49:152.72:070.12:210.35:487:44Waning Crescent13Sun
14Mon9:582.310:152.63:100.13:210.35:497:43Waning Crescent14Mon
15Tue10:582.311:102.64:110.14:180.35:507:41Waning Crescent15Tue
16Wed11:502.411:592.75:050.15:100.35:517:40Waning Crescent16Wed
17Thu12:352.45:510.15:560.35:527:38New Moon17Thu
18Fri12:422.71:162.46:330.16:380.35:537:37New Moon18Fri
19Sat1:232.71:552.47:110.17:190.25:547:35New Moon19Sat
20Sun2:032.62:322.57:480.17:590.25:557:34New Moon20Sun
21Mon2:412.63:082.58:250.18:390.25:567:32Waxing Crescent21Mon
22Tue3:202.63:452.59:030.19:190.35:577:31Waxing Crescent22Tue
23Wed4:002.54:222.59:410.210:010.35:587:29Waxing Crescent23Wed
24Thu4:402.45:022.510:200.310:450.35:597:28Waxing Crescent24Thu
25Fri5:242.35:442.411:030.311:330.36:007:26First Quarter25Fri
26Sat6:122.36:312.411:490.46:017:25First Quarter26Sat
27Sun7:032.27:212.512:240.312:390.46:027:23First Quarter27Sun
28Mon7:582.28:152.51:180.31:320.46:037:21First Quarter28Mon
29Tue8:552.29:112.62:150.32:280.46:047:20Waxing Gibbous29Tue
30Wed9:542.310:092.73:120.23:260.36:057:18Waxing Gibbous30Wed
31Thu10:502.411:062.94:090.04:240.16:067:17Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447675)

Common Questions About Osterville, MA Tides

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What time does the tide turn (slack tide) in Osterville, MA today?

Slack tide in Osterville, MA is approximately 2:58 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 Osterville, MA?

Osterville, MA is currently in a neap phase. Tonight's moon is 46% 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 Osterville, 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 Osterville, MA?

Tide predictions for Osterville, 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 Osterville, MA?

Tide data for Osterville, MA is sourced from NOAA Station #8447675. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447675.

What is the moon phase in Osterville, MA tonight?

Tonight the moon over Osterville, MA is First Quarter (46% illuminated). This places Osterville, 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