Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Osterville, MA.
Next low tide : in 5h 16m at 11:07 pm (0.2 ft)
Next high tide (tomorrow) : 5:43 am (2.4 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:39 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - Aug 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:272.18:412.41:460.41:540.65:358:00Waxing Gibbous1Sun
2Mon9:242.09:352.52:420.42:480.65:367:59Waxing Gibbous2Mon
3Tue10:202.110:292.63:380.33:430.55:377:58Waxing Gibbous3Tue
4Wed11:132.211:212.74:310.24:360.45:387:56Waxing Gibbous4Wed
5Thu12:022.35:210.15:270.35:397:55Full Moon5Thu
6Fri12:102.812:492.56:08-0.16:170.15:407:54Full Moon6Fri
7Sat12:592.91:352.66:54-0.27:060.05:417:53Full Moon7Sat
8Sun1:483.02:222.77:40-0.27:57-0.15:427:51Waning Gibbous8Sun
9Mon2:383.03:092.88:26-0.38:48-0.25:437:50Waning Gibbous9Mon
10Tue3:292.93:572.99:13-0.29:40-0.25:447:49Waning Gibbous10Tue
11Wed4:212.84:472.910:02-0.210:34-0.15:457:48Waning Gibbous11Wed
12Thu5:152.75:402.910:530.011:32-0.15:467:46Third Quarter12Thu
13Fri6:142.56:372.811:490.15:477:45Third Quarter13Fri
14Sat7:172.47:372.712:330.012:470.25:487:43Third Quarter14Sat
15Sun8:222.38:412.71:370.11:480.35:497:42Waning Crescent15Sun
16Mon9:302.29:462.62:420.12:510.45:507:41Waning Crescent16Mon
17Tue10:352.310:482.63:470.23:540.45:517:39Waning Crescent17Tue
18Wed11:322.311:422.74:460.14:510.35:527:38Waning Crescent18Wed
19Thu12:212.45:370.15:410.35:537:36New Moon19Thu
20Fri12:302.71:042.46:210.16:270.25:547:35New Moon20Fri
21Sat1:132.71:432.57:000.17:090.25:557:33New Moon21Sat
22Sun1:532.62:202.57:370.17:500.25:567:32New Moon22Sun
23Mon2:322.62:552.58:130.18:300.25:577:30Waxing Crescent23Mon
24Tue3:112.53:312.58:490.29:100.25:587:29Waxing Crescent24Tue
25Wed3:502.44:082.59:260.39:510.35:597:27Waxing Crescent25Wed
26Thu4:312.34:462.510:050.410:340.36:007:25Waxing Crescent26Thu
27Fri5:142.25:292.410:470.411:210.46:017:24First Quarter27Fri
28Sat6:012.16:152.411:320.56:027:22First Quarter28Sat
29Sun6:542.17:072.412:130.412:230.66:047:21First Quarter29Sun
30Mon7:492.08:022.41:080.41:170.66:057:19First Quarter30Mon
31Tue8:472.18:592.52:050.42:140.66:067:17Waxing 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 2:25 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 66% 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 Third Quarter (66% 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