Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Osterville, MA.
Next low tide (tomorrow) : 3:10 am (0.4 ft)
Next high tide : in 4h 00m at 9:07 pm (2.4 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - May 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:512.75:08-0.25:25-0.15:397:38New Moon1Wed
2Thu12:093.012:442.76:00-0.36:15-0.15:377:39New Moon2Thu
3Fri12:573.01:352.76:51-0.37:030.05:367:40New Moon3Fri
4Sat1:453.02:252.67:40-0.37:500.15:357:41Waxing Crescent4Sat
5Sun2:322.93:142.58:28-0.28:380.25:337:42Waxing Crescent5Sun
6Mon3:202.84:022.49:16-0.19:260.35:327:43Waxing Crescent6Mon
7Tue4:082.74:522.410:050.010:150.45:317:44Waxing Crescent7Tue
8Wed4:582.65:432.310:550.211:070.55:307:45First Quarter8Wed
9Thu5:512.46:362.211:470.35:297:46First Quarter9Thu
10Fri6:472.37:302.212:030.512:400.45:277:47First Quarter10Fri
11Sat7:432.38:222.21:000.51:320.45:267:49First Quarter11Sat
12Sun8:392.29:122.31:560.52:220.45:257:50Waxing Gibbous12Sun
13Mon9:342.210:002.42:500.53:110.45:247:51Waxing Gibbous13Mon
14Tue10:262.310:442.53:420.43:580.45:237:52Waxing Gibbous14Tue
15Wed11:132.311:262.64:310.34:420.45:227:53Waxing Gibbous15Wed
16Thu11:572.35:150.25:240.35:217:54Full Moon16Thu
17Fri12:052.612:392.45:570.16:050.35:207:55Full Moon17Fri
18Sat12:442.71:212.46:390.06:460.35:197:56Full Moon18Sat
19Sun1:252.82:042.47:220.07:290.25:187:57Full Moon19Sun
20Mon2:082.82:492.48:07-0.18:150.25:177:58Waning Gibbous20Mon
21Tue2:532.83:362.48:52-0.19:020.25:177:59Waning Gibbous21Tue
22Wed3:412.84:242.49:40-0.19:530.25:167:59Waning Gibbous22Wed
23Thu4:322.85:172.510:31-0.110:480.25:158:00Waning Gibbous23Thu
24Fri5:282.76:122.511:250.011:480.25:148:01Third Quarter24Fri
25Sat6:282.77:102.612:220.05:138:02Third Quarter25Sat
26Sun7:302.68:082.612:500.21:190.15:138:03Third Quarter26Sun
27Mon8:332.69:062.71:520.12:160.15:128:04Waning Crescent27Mon
28Tue9:372.510:032.82:540.13:130.15:118:05Waning Crescent28Tue
29Wed10:382.510:572.93:550.04:090.15:118:06Waning Crescent29Wed
30Thu11:362.511:482.94:52-0.15:030.15:108:06New Moon30Thu
31Fri12:292.55:45-0.25:530.15:108:07New Moon31Fri
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 12:08 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 73% 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 Waxing Gibbous (73% 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