Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide : 9:23 am (0.2 ft)
Next high tide : in 29m at 3:29 am (3.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Feb 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:223.63:403.59:040.39:240.36:514:55Waning Gibbous1Wed
2Thu4:053.54:273.39:510.410:090.46:504:57Third Quarter2Thu
3Fri4:503.55:173.210:410.510:580.56:494:58Third Quarter3Fri
4Sat5:403.56:113.111:340.511:490.66:484:59Third Quarter4Sat
5Sun6:313.57:063.112:290.56:475:00Third Quarter5Sun
6Mon7:253.68:043.112:420.61:250.46:465:02Waning Crescent6Mon
7Tue8:203.79:003.31:370.52:210.26:455:03Waning Crescent7Tue
8Wed9:143.99:523.52:320.43:130.06:445:04Waning Crescent8Wed
9Thu10:054.110:403.73:250.14:03-0.26:425:05New Moon9Thu
10Fri10:544.311:273.94:16-0.14:50-0.56:415:07New Moon10Fri
11Sat11:434.45:05-0.35:37-0.66:405:08New Moon11Sat
12Sun12:144.112:334.55:55-0.56:24-0.76:395:09New Moon12Sun
13Mon1:024.31:234.56:45-0.67:12-0.76:375:10Waxing Crescent13Mon
14Tue1:514.42:144.47:36-0.68:01-0.66:365:12Waxing Crescent14Tue
15Wed2:414.43:074.28:29-0.58:52-0.46:355:13Waxing Crescent15Wed
16Thu3:334.34:034.09:24-0.49:46-0.26:335:14First Quarter16Thu
17Fri4:294.25:043.710:24-0.210:440.06:325:15First Quarter17Fri
18Sat5:304.06:093.511:260.011:450.26:315:17First Quarter18Sat
19Sun6:333.97:163.412:310.16:295:18First Quarter19Sun
20Mon7:403.88:253.412:480.31:370.16:285:19Waxing Gibbous20Mon
21Tue8:453.89:273.41:510.42:410.16:265:20Waxing Gibbous21Tue
22Wed9:443.810:203.52:520.33:370.16:255:22Waxing Gibbous22Wed
23Thu10:343.911:053.63:460.24:230.06:235:23Full Moon23Thu
24Fri11:173.911:443.74:320.25:040.06:225:24Full Moon24Fri
25Sat11:573.95:150.15:420.06:205:25Full Moon25Sat
26Sun12:213.712:363.95:540.16:180.06:195:26Full Moon26Sun
27Mon12:573.71:133.86:330.06:540.06:175:28Waning Gibbous27Mon
28Tue1:333.81:513.77:120.17:310.16:165:29Waning Gibbous28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447506)

Common Questions About Harwich Port, MA Tides

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What time does the tide turn (slack tide) in Harwich Port, MA today?

Slack tide in Harwich Port, MA is approximately 6:26 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 Harwich Port, MA?

Harwich Port, MA is currently in a spring phase. Tonight's moon is 81% 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 Harwich Port, 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 Harwich Port, MA?

Tide predictions for Harwich Port, 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 Harwich Port, MA?

Tide data for Harwich Port, MA is sourced from NOAA Station #8447506. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447506.

What is the moon phase in Harwich Port, MA tonight?

Tonight the moon over Harwich Port, MA is Waning Gibbous (81% illuminated). This places Harwich Port, 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