Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Osterville, MA.
Next low tide : in 18m at 1:07 pm (0.4 ft)
Next high tide : 7:58 pm (2.5 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 - Sep 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:342.110:422.53:480.43:540.56:077:15Waxing Gibbous1Sat
2Sun11:202.311:282.64:360.34:440.46:087:13Waxing Gibbous2Sun
3Mon12:022.45:190.25:290.26:097:12Full Moon3Mon
4Tue12:122.712:412.56:000.16:140.16:107:10Full Moon4Tue
5Wed12:542.71:202.76:400.06:580.06:117:08Full Moon5Wed
6Thu1:372.82:002.87:21-0.17:42-0.16:127:07Full Moon6Thu
7Fri2:222.82:422.98:02-0.18:29-0.26:137:05Waning Gibbous7Fri
8Sat3:082.73:262.98:46-0.19:17-0.26:147:03Waning Gibbous8Sat
9Sun3:562.74:132.99:320.010:08-0.16:157:02Waning Gibbous9Sun
10Mon4:472.65:052.910:220.111:040.06:167:00Third Quarter10Mon
11Tue5:442.46:022.811:180.26:176:58Third Quarter11Tue
12Wed6:472.37:052.712:040.012:190.36:186:57Third Quarter12Wed
13Thu7:542.38:122.71:090.11:230.36:196:55Waning Crescent13Thu
14Fri9:032.39:212.62:140.12:290.36:206:53Waning Crescent14Fri
15Sat10:092.410:262.73:190.13:340.36:216:51Waning Crescent15Sat
16Sun11:082.511:252.74:190.14:350.26:226:50Waning Crescent16Sun
17Mon11:582.65:120.05:290.16:236:48New Moon17Mon
18Tue12:162.712:432.65:590.06:170.06:246:46New Moon18Tue
19Wed1:032.71:242.76:410.07:020.06:256:44New Moon19Wed
20Thu1:462.72:032.77:220.17:450.06:266:43New Moon20Thu
21Fri2:292.62:422.78:010.28:270.16:276:41Waxing Crescent21Fri
22Sat3:102.53:202.68:400.29:080.16:286:39Waxing Crescent22Sat
23Sun3:512.44:002.69:200.39:510.26:296:37Waxing Crescent23Sun
24Mon4:342.34:432.510:020.410:370.36:306:36Waxing Crescent24Mon
25Tue5:212.25:302.410:480.511:270.46:326:34First Quarter25Tue
26Wed6:122.16:222.411:380.66:336:32First Quarter26Wed
27Thu7:082.17:172.312:210.412:320.66:346:31First Quarter27Thu
28Fri8:042.18:142.31:170.51:280.66:356:29First Quarter28Fri
29Sat8:592.19:102.42:110.42:240.66:366:27Waxing Gibbous29Sat
30Sun9:512.210:032.53:040.43:190.56:376:25Waxing Gibbous30Sun
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 4:32 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 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