Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide (tomorrow) : 12:38 am (0.2 ft)
Next high tide : in 4h 07m at 6:33 pm (4.0 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:39 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Oct 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:063.59:244.02:200.22:380.56:386:21Waning Crescent1Tue
2Wed10:093.710:274.13:230.13:410.36:396:19Waning Crescent2Wed
3Thu11:043.911:234.14:200.04:390.16:406:17Waning Crescent3Thu
4Fri11:534.15:10-0.15:310.06:416:16New Moon4Fri
5Sat12:144.112:374.25:57-0.16:20-0.16:426:14New Moon5Sat
6Sun1:014.11:204.26:400.07:06-0.26:436:12New Moon6Sun
7Mon1:474.02:014.27:230.17:50-0.16:446:11Waxing Crescent7Mon
8Tue2:323.92:424.18:040.38:340.06:456:09Waxing Crescent8Tue
9Wed3:163.73:234.08:460.49:190.26:466:07Waxing Crescent9Wed
10Thu4:013.54:063.89:290.610:050.36:486:06Waxing Crescent10Thu
11Fri4:483.34:543.710:160.810:560.56:496:04First Quarter11Fri
12Sat5:403.25:463.511:070.911:500.66:506:02First Quarter12Sat
13Sun6:363.16:433.512:021.06:516:01First Quarter13Sun
14Mon7:333.17:413.512:460.712:591.06:525:59First Quarter14Mon
15Tue8:293.28:383.51:410.71:550.96:535:58Waxing Gibbous15Tue
16Wed9:213.39:323.62:340.62:500.86:545:56Waxing Gibbous16Wed
17Thu10:083.510:213.73:230.53:410.66:555:55Waxing Gibbous17Thu
18Fri10:493.711:053.84:070.34:270.46:565:53Waxing Gibbous18Fri
19Sat11:283.911:483.94:490.25:110.16:585:52Full Moon19Sat
20Sun12:064.15:290.15:54-0.16:595:50Full Moon20Sun
21Mon12:304.012:454.36:100.06:38-0.27:005:49Full Moon21Mon
22Tue1:144.01:264.46:520.07:24-0.37:015:47Full Moon22Tue
23Wed2:004.02:104.47:360.08:11-0.47:025:46Waning Gibbous23Wed
24Thu2:483.92:584.48:220.19:01-0.37:035:44Waning Gibbous24Thu
25Fri3:393.83:494.39:120.29:55-0.27:055:43Waning Gibbous25Fri
26Sat4:353.74:464.210:070.310:540.07:065:41Third Quarter26Sat
27Sun5:363.55:504.011:090.511:570.17:075:40Third Quarter27Sun
28Mon6:433.56:583.912:150.57:085:39Third Quarter28Mon
29Tue7:503.58:073.91:010.21:220.57:095:37Waning Crescent29Tue
30Wed8:543.79:143.82:040.22:280.47:115:36Waning Crescent30Wed
31Thu9:543.810:163.93:040.23:310.37:125:35Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447506)

Common Questions About Harwich Port, MA Tides

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

Slack tide in Harwich Port, MA is approximately 9:35 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 neap phase. Tonight's moon is 44% 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 minimum.

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 Third Quarter (44% illuminated). This places Harwich Port, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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