Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Osterville, MA.
Next low tide (tomorrow) : 1:13 am (0.4 ft)
Next high tide : in 3h 52m at 7:15 pm (2.4 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 - May 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:532.39:292.32:060.42:360.35:377:39Waning Crescent1Wed
2Thu9:502.310:192.43:040.43:280.45:367:40Waning Crescent2Thu
3Fri10:422.311:042.53:570.34:160.35:357:41Waning Crescent3Fri
4Sat11:282.411:452.54:440.34:590.35:347:42Waning Crescent4Sat
5Sun12:102.45:270.25:390.35:327:43New Moon5Sun
6Mon12:222.612:502.46:070.16:170.25:317:44New Moon6Mon
7Tue12:592.61:292.56:470.06:560.25:307:45New Moon7Tue
8Wed1:362.72:082.57:260.07:360.25:297:46New Moon8Wed
9Thu2:142.72:492.58:060.08:160.25:287:47Waxing Crescent9Thu
10Fri2:542.73:302.48:480.08:580.25:267:48Waxing Crescent10Fri
11Sat3:352.74:132.49:310.09:440.25:257:49Waxing Crescent11Sat
12Sun4:202.75:002.410:180.010:330.35:247:50Waxing Crescent12Sun
13Mon5:102.75:512.511:080.011:270.35:237:51First Quarter13Mon
14Tue6:042.66:472.512:020.05:227:52First Quarter14Tue
15Wed7:042.67:442.612:260.212:590.05:217:53First Quarter15Wed
16Thu8:052.68:422.71:260.21:560.05:207:54Waxing Gibbous16Thu
17Fri9:082.69:402.82:280.12:540.05:197:55Waxing Gibbous17Fri
18Sat10:112.710:372.93:290.03:52-0.15:187:56Waxing Gibbous18Sat
19Sun11:102.711:313.04:28-0.24:47-0.15:187:57Waxing Gibbous19Sun
20Mon12:062.85:24-0.35:40-0.15:177:58Full Moon20Mon
21Tue12:233.11:002.86:16-0.46:31-0.15:167:59Full Moon21Tue
22Wed1:143.11:532.77:08-0.47:22-0.15:158:00Full Moon22Wed
23Thu2:043.02:452.77:58-0.38:110.05:148:01Waning Gibbous23Thu
24Fri2:543.03:352.68:47-0.29:010.15:148:02Waning Gibbous24Fri
25Sat3:442.84:252.59:36-0.19:510.25:138:03Waning Gibbous25Sat
26Sun4:332.75:152.510:250.010:420.35:128:04Waning Gibbous26Sun
27Mon5:252.66:072.411:160.111:360.45:128:05Third Quarter27Mon
28Tue6:182.56:592.412:070.25:118:05Third Quarter28Tue
29Wed7:132.47:512.412:320.412:590.35:108:06Third Quarter29Wed
30Thu8:082.38:412.41:270.51:490.45:108:07Third Quarter30Thu
31Fri9:032.39:312.42:210.42:390.45:098:08Waning Crescent31Fri
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 10:14 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 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