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 : 9:37 pm (0.6 ft)
Next high tide : in 3h 00m at 4:05 pm (3.6 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 - Nov 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:243.911:503.74:420.45:100.27:125:35New Moon1Wed
2Thu12:013.95:210.45:490.17:135:33New Moon2Thu
3Fri12:293.712:374.05:590.46:270.17:145:32New Moon3Fri
4Sat1:073.71:144.06:360.47:050.17:165:31New Moon4Sat
5Sun1:453.612:514.06:140.46:440.16:174:30Waxing Crescent5Sun
6Mon1:243.61:293.96:530.57:240.16:184:29Waxing Crescent6Mon
7Tue2:043.52:083.97:330.58:050.26:194:28Waxing Crescent7Tue
8Wed2:453.52:503.88:150.68:480.26:214:27Waxing Crescent8Wed
9Thu3:283.43:353.89:010.69:350.36:224:26First Quarter9Thu
10Fri4:163.44:253.79:510.610:250.36:234:24First Quarter10Fri
11Sat5:073.55:203.710:460.611:190.26:244:23First Quarter11Sat
12Sun6:013.66:183.811:440.56:254:23First Quarter12Sun
13Mon6:553.87:173.812:130.212:420.36:274:22Waxing Gibbous13Mon
14Tue7:504.08:173.91:090.11:410.16:284:21Waxing Gibbous14Tue
15Wed8:454.29:164.02:040.02:39-0.26:294:20Waxing Gibbous15Wed
16Thu9:394.510:124.22:59-0.23:35-0.56:304:19Full Moon16Thu
17Fri10:314.711:064.23:52-0.34:29-0.66:314:18Full Moon17Fri
18Sat11:224.84:44-0.45:21-0.76:334:17Full Moon18Sat
19Sun12:004.212:144.85:36-0.46:14-0.86:344:17Full Moon19Sun
20Mon12:544.21:074.76:28-0.37:06-0.76:354:16Waning Gibbous20Mon
21Tue1:484.12:014.57:20-0.27:58-0.56:364:15Waning Gibbous21Tue
22Wed2:434.02:554.38:140.08:52-0.36:374:15Waning Gibbous22Wed
23Thu3:383.93:524.19:100.29:47-0.16:384:14Third Quarter23Thu
24Fri4:363.74:513.810:080.410:440.16:404:13Third Quarter24Fri
25Sat5:353.65:523.611:090.511:410.36:414:13Third Quarter25Sat
26Sun6:323.66:533.512:100.56:424:12Third Quarter26Sun
27Mon7:273.67:513.412:360.41:090.56:434:12Waning Crescent27Mon
28Tue8:193.78:473.41:290.52:050.56:444:11Waning Crescent28Tue
29Wed9:073.79:363.42:190.52:560.46:454:11Waning Crescent29Wed
30Thu9:503.810:213.53:050.53:410.36:464:11Waning Crescent30Thu
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 6:51 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 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