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 4h 50m 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 - Jul 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:162.29:382.52:360.42:510.45:108:19Waxing Gibbous1Sat
2Sun10:092.310:252.63:290.33:400.45:118:19Waxing Gibbous2Sun
3Mon11:002.311:122.74:200.24:290.35:118:19Waxing Gibbous3Mon
4Tue11:492.411:582.85:090.15:170.25:128:19Full Moon4Tue
5Wed12:362.45:56-0.16:050.25:138:18Full Moon5Wed
6Thu12:442.91:242.56:43-0.26:530.15:138:18Full Moon6Thu
7Fri1:333.02:142.67:31-0.27:430.05:148:18Full Moon7Fri
8Sat2:233.03:042.68:20-0.38:340.05:158:17Waning Gibbous8Sat
9Sun3:153.03:552.79:10-0.39:270.05:158:17Waning Gibbous9Sun
10Mon4:083.04:472.710:01-0.310:220.05:168:17Waning Gibbous10Mon
11Tue5:032.95:422.710:54-0.211:210.05:178:16Third Quarter11Tue
12Wed6:022.86:392.711:49-0.15:178:16Third Quarter12Wed
13Thu7:032.67:372.712:210.112:460.05:188:15Third Quarter13Thu
14Fri8:062.58:362.71:230.11:440.15:198:15Waning Crescent14Fri
15Sat9:102.59:352.72:250.12:420.25:208:14Waning Crescent15Sat
16Sun10:142.410:322.73:280.13:400.25:218:13Waning Crescent16Sun
17Mon11:132.411:262.84:270.04:350.25:228:13Waning Crescent17Mon
18Tue12:062.45:210.05:270.25:228:12New Moon18Tue
19Wed12:142.812:542.46:090.06:140.25:238:11New Moon19Wed
20Thu1:002.71:392.46:540.06:590.35:248:11New Moon20Thu
21Fri1:432.72:212.47:360.07:420.35:258:10New Moon21Fri
22Sat2:252.73:022.48:160.08:250.35:268:09Waxing Crescent22Sat
23Sun3:072.63:412.48:560.19:070.35:278:08Waxing Crescent23Sun
24Mon3:482.64:202.49:360.19:500.35:288:07Waxing Crescent24Mon
25Tue4:302.55:012.410:160.210:340.45:298:06Waxing Crescent25Tue
26Wed5:132.45:432.410:580.311:210.45:308:05First Quarter26Wed
27Thu6:002.46:282.411:430.35:318:04First Quarter27Thu
28Fri6:492.37:152.412:110.412:290.45:328:03First Quarter28Fri
29Sat7:402.28:032.41:020.41:180.45:328:02First Quarter29Sat
30Sun8:342.28:532.51:550.42:080.45:338:01Waxing Gibbous30Sun
31Mon9:292.29:452.62:490.33:010.45:348:00Waxing Gibbous31Mon
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 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