Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Osterville, MA.
Next low tide (tomorrow) : in 4h 56m at 1:13 am (0.4 ft)
Next high tide (tomorrow) : 7:57 am (2.1 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - Oct 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:432.51:552.77:170.27:440.15:375:25Waning Gibbous1Sun
2Mon2:232.52:342.77:560.28:260.15:385:23Waning Gibbous2Mon
3Tue3:052.43:162.68:380.39:110.15:395:21Waning Gibbous3Tue
4Wed3:502.44:022.69:240.310:010.15:405:20Third Quarter4Wed
5Thu4:412.34:552.610:160.310:560.15:415:18Third Quarter5Thu
6Fri5:372.35:532.611:140.311:550.15:425:16Third Quarter6Fri
7Sat6:372.46:552.612:140.35:445:15Third Quarter7Sat
8Sun7:372.57:582.712:540.11:160.25:455:13Waning Crescent8Sun
9Mon8:382.69:012.81:530.02:180.15:465:11Waning Crescent9Mon
10Tue9:362.810:012.82:51-0.13:18-0.15:475:10Waning Crescent10Tue
11Wed10:302.910:572.93:46-0.24:14-0.25:485:08New Moon11Wed
12Thu11:213.011:502.94:38-0.25:07-0.45:495:06New Moon12Thu
13Fri12:103.15:28-0.35:59-0.45:505:05New Moon13Fri
14Sat12:422.91:003.16:17-0.26:49-0.45:515:03Waxing Crescent14Sat
15Sun1:342.81:493.07:06-0.17:40-0.35:525:02Waxing Crescent15Sun
16Mon2:252.72:392.97:560.08:30-0.25:545:00Waxing Crescent16Mon
17Tue3:172.63:292.88:450.19:220.05:554:59Waxing Crescent17Tue
18Wed4:102.54:222.69:370.310:160.15:564:57First Quarter18Wed
19Thu5:062.45:182.510:330.411:120.25:574:55First Quarter19Thu
20Fri6:042.36:172.411:310.55:584:54First Quarter20Fri
21Sat7:012.37:152.412:090.312:290.55:594:52First Quarter21Sat
22Sun7:562.38:122.41:040.41:260.56:004:51Waxing Gibbous22Sun
23Mon8:472.39:062.41:560.42:200.46:024:50Waxing Gibbous23Mon
24Tue9:342.49:542.42:450.33:100.36:034:48Waxing Gibbous24Tue
25Wed10:162.510:382.53:300.33:550.26:044:47Waxing Gibbous25Wed
26Thu10:552.611:182.54:100.24:370.16:054:45Full Moon26Thu
27Fri11:322.711:572.54:490.25:170.16:064:44Full Moon27Fri
28Sat12:082.75:280.25:570.06:084:42Full Moon28Sat
29Sun12:372.512:462.76:070.26:370.06:094:41Full Moon29Sun
30Mon1:172.51:252.86:470.27:19-0.16:104:40Waning Gibbous30Mon
31Tue1:592.52:072.87:290.28:030.06:114:39Waning Gibbous31Tue
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 4:35 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 neap phase. Tonight's moon is 55% 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 (55% 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