Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Osterville, MA.
Next low tide (tomorrow) : in 2h 38m at 1:52 am (0.3 ft)
Next high tide (tomorrow) : 8:36 am (2.2 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - May 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:442.411:062.53:570.34:170.35:377:40Waning Crescent1Fri
2Sat11:322.411:472.54:480.25:010.35:357:41Waning Crescent2Sat
3Sun12:152.45:320.25:400.35:347:42New Moon3Sun
4Mon12:242.612:552.46:120.16:180.35:337:43New Moon4Mon
5Tue1:002.61:332.46:500.16:550.35:327:44New Moon5Tue
6Wed1:362.62:112.37:280.17:330.45:307:45New Moon6Wed
7Thu2:122.62:502.38:060.18:110.45:297:46Waxing Crescent7Thu
8Fri2:502.63:302.38:450.18:510.45:287:47Waxing Crescent8Fri
9Sat3:302.64:102.29:260.29:320.55:277:48Waxing Crescent9Sat
10Sun4:112.54:532.210:080.210:170.55:267:49Waxing Crescent10Sun
11Mon4:552.55:392.210:540.211:060.55:257:50First Quarter11Mon
12Tue5:442.56:282.311:430.25:247:51First Quarter12Tue
13Wed6:372.57:192.312:000.512:340.25:237:52First Quarter13Wed
14Thu7:342.58:112.512:560.41:260.25:227:53First Quarter14Thu
15Fri8:312.59:042.61:530.32:190.25:217:54Waxing Gibbous15Fri
16Sat9:302.59:572.82:520.13:140.15:207:55Waxing Gibbous16Sat
17Sun10:292.610:502.93:500.04:080.05:197:56Waxing Gibbous17Sun
18Mon11:262.611:423.14:46-0.25:010.05:187:57Full Moon18Mon
19Tue12:202.75:40-0.35:53-0.15:177:58Full Moon19Tue
20Wed12:333.11:152.76:33-0.46:46-0.15:167:59Full Moon20Wed
21Thu1:263.22:102.77:27-0.47:38-0.15:168:00Full Moon21Thu
22Fri2:203.13:062.78:20-0.48:320.05:158:01Waning Gibbous22Fri
23Sat3:163.04:022.69:13-0.39:270.15:148:02Waning Gibbous23Sat
24Sun4:122.94:582.510:08-0.210:240.25:138:03Waning Gibbous24Sun
25Mon5:092.85:562.511:030.011:230.35:138:04Third Quarter25Mon
26Tue6:092.66:542.412:000.15:128:05Third Quarter26Tue
27Wed7:102.57:512.412:250.412:570.25:118:05Third Quarter27Wed
28Thu8:112.48:452.41:260.41:510.35:118:06Third Quarter28Thu
29Fri9:102.39:372.52:260.42:440.45:108:07Waning Crescent29Fri
30Sat10:072.310:252.53:240.33:340.45:108:08Waning Crescent30Sat
31Sun10:592.311:092.54:160.34:210.45:098:09Waning Crescent31Sun
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 5:14 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 62% 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 First Quarter (62% 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