Tides Today & Tomorrow in Osterville, MA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Osterville, MA.
Next low tide : in 3h 03m at 10:05 pm (0.1 ft)
Next high tide (tomorrow) : 4:50 am (2.7 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:23 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8447675
Common Questions About Tides

Osterville, MA Tides - Jul 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:552.38:182.61:200.31:340.35:118:19Third Quarter1Sat
2Sun8:512.39:102.72:150.22:260.35:128:19Waning Crescent2Sun
3Mon9:492.310:052.83:120.13:220.35:128:19Waning Crescent3Mon
4Tue10:482.411:012.94:100.04:180.25:138:19Waning Crescent4Tue
5Wed11:452.411:563.05:07-0.15:140.15:138:18New Moon5Wed
6Thu12:412.56:02-0.26:090.15:148:18New Moon6Thu
7Fri12:523.11:372.66:56-0.37:050.05:158:18New Moon7Fri
8Sat1:483.12:332.67:49-0.38:000.05:158:17Waxing Crescent8Sat
9Sun2:453.13:282.78:42-0.38:560.05:168:17Waxing Crescent9Sun
10Mon3:413.04:222.79:33-0.39:520.05:178:17Waxing Crescent10Mon
11Tue4:372.95:162.710:26-0.110:500.15:178:16First Quarter11Tue
12Wed5:352.76:102.711:190.011:490.15:188:16First Quarter12Wed
13Thu6:342.57:052.612:130.15:198:15First Quarter13Thu
14Fri7:352.48:002.612:500.21:080.35:208:15First Quarter14Fri
15Sat8:352.38:552.51:510.22:020.45:218:14Waxing Gibbous15Sat
16Sun9:372.29:502.52:510.32:570.55:218:13Waxing Gibbous16Sun
17Mon10:362.210:422.53:510.33:520.55:228:13Waxing Gibbous17Mon
18Tue11:282.211:312.54:450.24:420.55:238:12Waxing Gibbous18Tue
19Wed12:142.25:320.25:280.55:248:11Full Moon19Wed
20Thu12:152.612:562.26:130.26:110.45:258:10Full Moon20Thu
21Fri12:562.61:362.36:520.26:520.45:268:10Full Moon21Fri
22Sat1:362.62:152.37:300.17:330.45:278:09Full Moon22Sat
23Sun2:152.62:512.38:060.18:130.45:288:08Waning Gibbous23Sun
24Mon2:542.63:282.48:430.18:530.35:288:07Waning Gibbous24Mon
25Tue3:322.64:032.49:190.19:340.35:298:06Waning Gibbous25Tue
26Wed4:122.54:402.49:570.210:160.35:308:05Waning Gibbous26Wed
27Thu4:532.55:192.510:370.211:030.35:318:04Third Quarter27Thu
28Fri5:382.46:032.511:200.211:530.35:328:03Third Quarter28Fri
29Sat6:282.36:502.612:070.35:338:02Third Quarter29Sat
30Sun7:232.37:432.612:470.212:590.35:348:01Third Quarter30Sun
31Mon8:212.28:402.71:450.21:550.35:358:00Waning Crescent31Mon
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 1:27 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 23% 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 Crescent (23% 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