Tides Today & Tomorrow in Oak Bluffs, Martha’s Vineyard, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Oak Bluffs, Martha's Vineyard, MA.
Next low tide (tomorrow) : 1:55 am (0.8 ft)
Next high tide : in 5h 41m at 7:29 pm (1.6 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8448208
Common Questions About Tides

Oak Bluffs, Martha’s Vineyard, MA Tides - Jul 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:012.112:221.85:430.25:130.25:118:19Full Moon1Sat
2Sun12:442.11:041.86:180.25:580.25:128:19Full Moon2Sun
3Mon1:242.01:461.86:530.26:430.25:128:19Full Moon3Mon
4Tue2:021.92:261.77:280.17:270.25:138:19Waning Gibbous4Tue
5Wed2:401.83:061.78:030.28:090.35:138:19Waning Gibbous5Wed
6Thu3:181.73:461.68:370.28:500.45:148:18Waning Gibbous6Thu
7Fri3:571.64:261.69:120.39:340.55:158:18Waning Gibbous7Fri
8Sat4:371.55:071.69:510.310:250.65:158:18Third Quarter8Sat
9Sun5:201.55:491.610:350.311:280.65:168:17Third Quarter9Sun
10Mon6:061.56:351.711:260.35:178:17Third Quarter10Mon
11Tue6:571.47:271.712:410.612:230.35:178:17Third Quarter11Tue
12Wed7:561.58:281.81:500.51:220.25:188:16Waning Crescent12Wed
13Thu9:001.69:302.02:480.42:190.15:198:16Waning Crescent13Thu
14Fri10:011.710:272.13:380.23:14-0.15:208:15Waning Crescent14Fri
15Sat10:571.911:212.34:260.04:07-0.25:208:15New Moon15Sat
16Sun11:502.05:16-0.15:01-0.35:218:14New Moon16Sun
17Mon12:122.412:412.26:06-0.25:56-0.35:228:13New Moon17Mon
18Tue1:032.41:332.36:55-0.36:52-0.35:238:13Waxing Crescent18Tue
19Wed1:552.42:262.37:40-0.37:46-0.25:248:12Waxing Crescent19Wed
20Thu2:472.33:202.38:23-0.28:39-0.15:258:11Waxing Crescent20Thu
21Fri3:412.24:162.39:06-0.19:370.15:258:11Waxing Crescent21Fri
22Sat4:372.05:132.29:530.010:520.35:268:10First Quarter22Sat
23Sun5:331.96:092.110:480.25:278:09First Quarter23Sun
24Mon6:301.87:072.012:410.511:54 AM0.35:288:08First Quarter24Mon
25Tue7:291.78:092.01:580.51:050.45:298:07Waxing Gibbous25Tue
26Wed8:321.69:121.92:560.52:050.45:308:06Waxing Gibbous26Wed
27Thu9:351.610:091.93:410.52:520.45:318:05Waxing Gibbous27Thu
28Fri10:291.710:582.04:170.43:340.45:328:04Waxing Gibbous28Fri
29Sat11:161.711:412.04:470.44:150.35:338:03Full Moon29Sat
30Sun11:591.85:160.34:570.25:348:02Full Moon30Sun
31Mon12:212.012:391.85:490.25:410.25:358:01Full Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8448208)

Common Questions About Oak Bluffs, Martha's Vineyard, MA Tides

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What time does the tide turn (slack tide) in Oak Bluffs, Martha's Vineyard, MA today?

Slack tide in Oak Bluffs, Martha's Vineyard, MA is approximately 10:42 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 Oak Bluffs, Martha's Vineyard, MA?

Oak Bluffs, Martha's Vineyard, MA is currently in a transitional phase. Tonight's moon is 65% 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 Oak Bluffs, Martha's Vineyard, 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 Oak Bluffs, Martha's Vineyard, MA?

Tide predictions for Oak Bluffs, Martha's Vineyard, 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 Oak Bluffs, Martha's Vineyard, MA?

Tide data for Oak Bluffs, Martha's Vineyard, MA is sourced from NOAA Station #8448208. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8448208.

What is the moon phase in Oak Bluffs, Martha's Vineyard, MA tonight?

Tonight the moon over Oak Bluffs, Martha's Vineyard, MA is First Quarter (65% illuminated). This places Oak Bluffs, Martha's Vineyard, 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