Tides Today & Tomorrow in Wellfleet Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Wellfleet Harbor, MA.
Next low tide : in 5h 35m at 9:22 pm (0.1 ft)
Next high tide (tomorrow) : 3:20 am (10.6 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8446613
Common Questions About Tides

Wellfleet Harbor, MA Tides - Sep 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:1211.011:3012.15:18-0.75:36-0.56:057:14New Moon1Sun
2Mon12:0011.66:06-1.26:27-1.16:067:12New Moon2Mon
3Tue12:2112.312:4912.16:55-1.57:18-1.46:077:11New Moon3Tue
4Wed1:1312.31:4012.37:44-1.58:10-1.56:087:09Waxing Crescent4Wed
5Thu2:0612.12:3112.38:34-1.39:03-1.46:097:07Waxing Crescent5Thu
6Fri3:0011.73:2312.29:25-0.99:58-1.06:107:05Waxing Crescent6Fri
7Sat3:5611.14:1811.810:19-0.410:56-0.66:117:04First Quarter7Sat
8Sun4:5610.65:1811.311:160.211:57-0.16:137:02First Quarter8Sun
9Mon5:5910.06:2110.912:160.76:147:00First Quarter9Mon
10Tue7:059.77:2510.61:000.31:181.16:156:59Waxing Gibbous10Tue
11Wed8:109.68:2910.52:040.62:211.36:166:57Waxing Gibbous11Wed
12Thu9:129.69:2910.53:070.73:221.26:176:55Waxing Gibbous12Thu
13Fri10:069.810:2110.54:040.64:181.16:186:53Waxing Gibbous13Fri
14Sat10:5210.011:0610.64:520.55:060.96:196:52Full Moon14Sat
15Sun11:3210.211:4710.65:340.55:490.76:206:50Full Moon15Sun
16Mon12:0910.36:120.56:290.56:216:48Full Moon16Mon
17Tue12:2610.512:4510.46:490.57:080.56:226:46Full Moon17Tue
18Wed1:0410.41:2110.47:250.67:460.56:236:45Full Moon18Wed
19Thu1:4210.21:5710.48:020.88:260.66:246:43Waning Gibbous19Thu
20Fri2:2010.02:3410.38:401.09:060.76:256:41Waning Gibbous20Fri
21Sat3:009.73:1310.29:191.29:480.96:266:39Waning Gibbous21Sat
22Sun3:429.43:5510.110:011.510:331.16:276:38Waning Gibbous22Sun
23Mon4:289.24:4110.010:471.711:231.26:286:36Third Quarter23Mon
24Tue5:189.05:329.911:371.86:296:34Third Quarter24Tue
25Wed6:129.06:2710.012:161.212:321.86:306:32Third Quarter25Wed
26Thu7:089.27:2410.31:121.11:291.66:316:31Waning Crescent26Thu
27Fri8:049.68:2310.62:080.82:271.16:326:29Waning Crescent27Fri
28Sat9:0010.29:2011.13:040.33:250.56:336:27Waning Crescent28Sat
29Sun8:5410.99:1611.62:58-0.23:21-0.35:345:25Waning Crescent29Sun
30Mon9:4411.610:0912.03:50-0.84:14-1.05:365:24New Moon30Mon
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 12:21 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 Wellfleet Harbor, MA?

Wellfleet Harbor, MA is currently in a spring phase. Tonight's moon is 18% 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 maximum.

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 (18% illuminated). This places Wellfleet Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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