Tides Today & Tomorrow in Wellfleet Harbor, MA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Wellfleet Harbor, MA.
Next low tide : 10:12 pm (0.5 ft)
Next high tide : in 5h 16m at 3:43 pm (10.7 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8446613
Common Questions About Tides

Wellfleet Harbor, MA Tides - Oct 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:408.94:539.710:532.111:341.55:365:23First Quarter1Sat
2Sun5:368.85:509.511:492.25:375:21First Quarter2Sun
3Mon6:328.86:469.512:291.712:452.25:385:19Waxing Gibbous3Mon
4Tue7:269.07:419.61:221.61:402.05:395:18Waxing Gibbous4Tue
5Wed8:159.48:319.92:131.42:321.65:405:16Waxing Gibbous5Wed
6Thu8:599.89:1610.12:591.13:191.15:425:14Waxing Gibbous6Thu
7Fri9:3910.39:5810.43:410.84:030.65:435:13Full Moon7Fri
8Sat10:1710.710:3910.54:220.64:450.25:445:11Full Moon8Sat
9Sun10:5511.011:2010.65:010.35:27-0.25:455:09Full Moon9Sun
10Mon11:3411.35:410.26:10-0.55:465:08Full Moon10Mon
11Tue12:0210.612:1511.56:230.16:54-0.65:475:06Waning Gibbous11Tue
12Wed12:4710.612:5911.67:070.27:40-0.65:485:04Waning Gibbous12Wed
13Thu1:3410.41:4611.67:530.38:29-0.55:495:03Waning Gibbous13Thu
14Fri2:2410.22:3711.48:440.59:23-0.35:505:01Third Quarter14Fri
15Sat3:1910.03:3411.19:390.810:210.05:525:00Third Quarter15Sat
16Sun4:199.94:3610.910:400.911:220.25:534:58Third Quarter16Sun
17Mon5:229.95:4210.711:440.95:544:56Third Quarter17Mon
18Tue6:2610.16:4810.712:230.212:480.85:554:55Waning Crescent18Tue
19Wed7:2810.57:5310.71:240.21:520.55:564:53Waning Crescent19Wed
20Thu8:2710.98:5310.92:230.02:520.05:574:52Waning Crescent20Thu
21Fri9:2011.39:4811.03:18-0.13:48-0.45:594:50New Moon21Fri
22Sat10:0811.610:3710.94:08-0.24:39-0.76:004:49New Moon22Sat
23Sun10:5311.711:2510.84:55-0.15:26-0.86:014:47New Moon23Sun
24Mon11:3611.65:400.16:12-0.76:024:46New Moon24Mon
25Tue12:1010.512:1911.46:240.46:56-0.46:034:44Waxing Crescent25Tue
26Wed12:5510.21:0211.17:080.77:41-0.16:044:43Waxing Crescent26Wed
27Thu1:409.91:4610.77:511.18:250.46:064:42Waxing Crescent27Thu
28Fri2:259.52:3110.38:371.59:120.86:074:40Waxing Crescent28Fri
29Sat3:129.23:209.99:251.910:011.26:084:39First Quarter29Sat
30Sun4:039.04:129.610:162.110:521.46:094:38First Quarter30Sun
31Mon4:558.95:079.411:112.211:441.56:114:36First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8446613)

Common Questions About Wellfleet Harbor, MA Tides

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What time does the tide turn (slack tide) in Wellfleet Harbor, MA today?

Slack tide in Wellfleet Harbor, MA is approximately 6:57 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 Wellfleet Harbor, MA?

Wellfleet Harbor, MA is currently in a transitional phase. Tonight's moon is 27% 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 Wellfleet Harbor, 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 Wellfleet Harbor, MA?

Tide predictions for Wellfleet Harbor, 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 Wellfleet Harbor, MA?

Tide data for Wellfleet Harbor, MA is sourced from NOAA Station #8446613. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8446613.

What is the moon phase in Wellfleet Harbor, MA tonight?

Tonight the moon over Wellfleet Harbor, MA is Waxing Crescent (27% illuminated). This places Wellfleet Harbor, 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