Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Osterville, MA.
Next low tide : in 3h 34m at 11:35 am (0.4 ft)
Next high tide : 6:22 pm (2.5 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - May 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:032.38:472.21:180.51:550.45:377:39First Quarter1Mon
2Tue9:012.39:402.32:150.52:490.45:367:40Waxing Gibbous2Tue
3Wed9:572.310:292.43:110.53:400.45:357:41Waxing Gibbous3Wed
4Thu10:482.411:122.44:030.44:260.35:347:42Waxing Gibbous4Thu
5Fri11:332.411:522.54:500.35:070.35:327:43Waxing Gibbous5Fri
6Sat12:152.55:320.25:470.25:317:44Full Moon6Sat
7Sun12:292.612:552.56:130.16:260.25:307:45Full Moon7Sun
8Mon1:062.71:352.56:530.07:050.25:297:46Full Moon8Mon
9Tue1:432.72:152.57:340.07:450.25:287:47Full Moon9Tue
10Wed2:222.82:582.58:16-0.18:270.25:267:48Waning Gibbous10Wed
11Thu3:042.83:422.59:00-0.19:110.25:257:49Waning Gibbous11Thu
12Fri3:482.84:292.49:46-0.110:000.25:247:50Waning Gibbous12Fri
13Sat4:372.85:202.410:370.010:530.35:237:51Waning Gibbous13Sat
14Sun5:312.76:172.411:310.011:510.35:227:52Third Quarter14Sun
15Mon6:302.77:162.512:290.05:217:53Third Quarter15Mon
16Tue7:332.68:172.512:530.31:290.05:207:54Third Quarter16Tue
17Wed8:372.69:172.61:560.22:280.05:197:55Waning Crescent17Wed
18Thu9:412.610:152.82:590.13:260.05:187:56Waning Crescent18Thu
19Fri10:432.711:102.94:000.04:230.05:187:57Waning Crescent19Fri
20Sat11:402.74:57-0.25:15-0.15:177:58New Moon20Sat
21Sun12:002.912:342.75:50-0.26:05-0.15:167:59New Moon21Sun
22Mon12:493.01:252.76:40-0.36:530.05:158:00New Moon22Mon
23Tue1:363.02:152.77:29-0.37:410.15:148:01New Moon23Tue
24Wed2:232.93:032.68:17-0.28:280.15:148:02Waxing Crescent24Wed
25Thu3:092.83:512.59:04-0.19:140.25:138:03Waxing Crescent25Thu
26Fri3:562.74:382.49:510.010:020.35:128:04Waxing Crescent26Fri
27Sat4:432.65:272.310:390.110:520.45:128:05Waxing Crescent27Sat
28Sun5:332.56:182.311:280.211:450.55:118:06First Quarter28Sun
29Mon6:262.47:102.312:190.35:108:06First Quarter29Mon
30Tue7:212.38:012.312:400.51:100.45:108:07First Quarter30Tue
31Wed8:152.38:512.31:340.52:000.45:098:08First Quarter31Wed
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 2:58 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 46% 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 (46% 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