Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Osterville, MA.
Next low tide : 2:16 pm (0.6 ft)
Next high tide : in 5m at 8:57 am (2.0 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - Mar 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:252.67:122.212:230.16:165:31First Quarter1Sun
2Mon7:322.58:222.212:380.31:310.26:145:33Waxing Gibbous2Mon
3Tue8:412.49:282.21:440.32:380.26:125:34Waxing Gibbous3Tue
4Wed9:442.510:232.32:480.33:370.16:115:35Waxing Gibbous4Wed
5Thu10:372.511:092.33:460.34:250.16:095:36Waxing Gibbous5Thu
6Fri11:222.511:482.44:340.25:060.16:085:37Full Moon6Fri
7Sat12:032.55:170.15:420.16:065:38Full Moon7Sat
8Sun12:242.512:402.55:560.16:170.16:045:40Full Moon8Sun
9Mon12:592.51:172.56:340.06:520.16:035:41Full Moon9Mon
10Tue1:332.51:542.57:120.07:270.16:015:42Waning Gibbous10Tue
11Wed2:072.52:312.47:500.18:040.25:595:43Waning Gibbous11Wed
12Thu2:432.53:092.38:290.18:420.35:585:44Waning Gibbous12Thu
13Fri3:212.53:502.29:100.29:220.35:565:45Waning Gibbous13Fri
14Sat4:022.44:362.19:550.210:070.45:545:46Third Quarter14Sat
15Sun4:482.45:262.110:460.310:580.55:535:47Third Quarter15Sun
16Mon5:402.46:222.011:410.311:540.55:515:49Third Quarter16Mon
17Tue6:362.47:202.112:380.35:495:50Third Quarter17Tue
18Wed7:362.48:192.212:520.41:360.25:485:51Waning Crescent18Wed
19Thu8:362.59:162.31:520.32:330.15:465:52Waning Crescent19Thu
20Fri9:352.710:092.52:520.13:27-0.15:445:53Waning Crescent20Fri
21Sat10:302.810:582.83:48-0.14:18-0.25:425:54New Moon21Sat
22Sun11:222.911:462.94:41-0.35:06-0.35:415:55New Moon22Sun
23Mon12:132.95:32-0.45:55-0.45:395:56New Moon23Mon
24Tue12:353.01:052.96:23-0.56:43-0.45:375:57New Moon24Tue
25Wed1:243.11:572.97:14-0.57:32-0.35:365:59Waxing Crescent25Wed
26Thu2:143.12:502.88:06-0.58:23-0.25:346:00Waxing Crescent26Thu
27Fri3:063.03:442.69:00-0.39:150.05:326:01Waxing Crescent27Fri
28Sat4:002.84:432.49:56-0.210:120.25:316:02First Quarter28Sat
29Sun4:592.75:472.310:570.011:140.35:296:03First Quarter29Sun
30Mon6:042.56:532.212:020.15:276:04First Quarter30Mon
31Tue7:112.47:592.212:180.41:070.25:256:05First Quarter31Tue
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 11:36 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 Osterville, MA?

Osterville, MA is currently in a transitional phase. Tonight's moon is 73% 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 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 Waxing Gibbous (73% illuminated). This places Osterville, 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