Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Osterville, MA.
Next low tide : 11:07 pm (0.2 ft)
Next high tide : in 11m at 5:18 pm (2.6 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 - Sep 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:462.19:582.63:020.33:120.56:077:16Waxing Gibbous1Wed
2Thu10:412.310:532.73:580.24:090.36:087:14Waxing Gibbous2Thu
3Fri11:312.511:452.84:500.05:030.16:097:12Full Moon3Fri
4Sat12:192.65:38-0.15:54-0.16:107:11Full Moon4Sat
5Sun12:362.91:052.86:25-0.26:45-0.26:117:09Full Moon5Sun
6Mon1:263.01:532.97:12-0.37:36-0.36:127:07Full Moon6Mon
7Tue2:173.02:413.07:59-0.38:27-0.36:137:06Waning Gibbous7Tue
8Wed3:092.93:303.08:47-0.29:20-0.36:147:04Waning Gibbous8Wed
9Thu4:022.84:213.09:37-0.110:14-0.26:157:02Waning Gibbous9Thu
10Fri4:572.65:162.910:300.011:12-0.16:167:01Third Quarter10Fri
11Sat5:572.56:152.811:270.26:176:59Third Quarter11Sat
12Sun7:022.37:192.612:150.112:280.36:186:57Third Quarter12Sun
13Mon8:092.38:262.61:200.21:320.46:196:55Waning Crescent13Mon
14Tue9:172.29:322.52:260.22:370.46:206:54Waning Crescent14Tue
15Wed10:202.310:342.53:300.23:400.46:216:52Waning Crescent15Wed
16Thu11:132.311:262.64:270.24:370.46:226:50Waning Crescent16Thu
17Fri11:582.45:140.25:250.36:236:49New Moon17Fri
18Sat12:112.612:362.55:540.26:070.26:246:47New Moon18Sat
19Sun12:512.61:112.56:300.26:460.26:256:45New Moon19Sun
20Mon1:292.51:452.67:050.27:240.26:266:43New Moon20Mon
21Tue2:062.52:202.67:400.28:020.26:276:42New Moon21Tue
22Wed2:432.52:542.68:150.38:400.26:286:40Waxing Crescent22Wed
23Thu3:212.43:312.58:520.39:200.26:296:38Waxing Crescent23Thu
24Fri4:012.34:092.59:300.410:020.36:306:36Waxing Crescent24Fri
25Sat4:432.24:512.510:110.510:480.36:316:35Waxing Crescent25Sat
26Sun5:292.15:382.410:570.611:390.46:326:33First Quarter26Sun
27Mon6:212.16:312.411:490.66:336:31First Quarter27Mon
28Tue7:182.17:292.412:350.412:460.66:346:29First Quarter28Tue
29Wed8:162.18:282.51:320.31:450.56:356:28Waxing Gibbous29Wed
30Thu9:132.39:292.62:290.32:450.46:366:26Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447675)

Common Questions About Osterville, MA Tides

Show All
What time does the tide turn (slack tide) in Osterville, MA today?

Slack tide in Osterville, MA is approximately 8:12 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 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