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 2h 05m 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 - Dec 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:303.911:023.53:480.54:230.26:474:10New Moon1Fri
2Sat11:083.911:413.54:280.45:020.16:484:10New Moon2Sat
3Sun11:464.05:070.45:410.06:494:10New Moon3Sun
4Mon12:213.512:244.05:470.46:200.06:504:10New Moon4Mon
5Tue1:003.51:034.06:270.46:590.06:514:10Waxing Crescent5Tue
6Wed1:403.51:434.07:080.47:400.06:524:09Waxing Crescent6Wed
7Thu2:203.52:253.97:510.48:220.06:534:09Waxing Crescent7Thu
8Fri3:023.63:103.98:370.49:080.06:544:09Waxing Crescent8Fri
9Sat3:483.63:593.89:260.49:560.06:554:09First Quarter9Sat
10Sun4:373.74:543.810:210.310:490.16:564:09First Quarter10Sun
11Mon5:313.85:523.711:190.311:440.16:574:10First Quarter11Mon
12Tue6:263.96:523.712:180.16:574:10First Quarter12Tue
13Wed7:234.17:543.812:400.01:190.06:584:10Waxing Gibbous13Wed
14Thu8:204.28:563.81:380.02:19-0.26:594:10Waxing Gibbous14Thu
15Fri9:184.49:553.92:35-0.13:17-0.47:004:10Waxing Gibbous15Fri
16Sat10:134.610:514.03:31-0.24:13-0.67:004:11Full Moon16Sat
17Sun11:064.611:454.04:25-0.35:06-0.77:014:11Full Moon17Sun
18Mon11:584.65:18-0.35:57-0.77:024:11Full Moon18Mon
19Tue12:384.012:514.56:10-0.26:48-0.67:024:12Waning Gibbous19Tue
20Wed1:314.01:424.47:01-0.27:38-0.57:034:12Waning Gibbous20Wed
21Thu2:223.92:344.27:520.08:27-0.37:034:13Waning Gibbous21Thu
22Fri3:123.83:254.08:440.19:16-0.17:044:13Waning Gibbous22Fri
23Sat4:033.74:183.79:380.310:070.17:044:14Third Quarter23Sat
24Sun4:553.65:133.510:340.410:590.37:054:14Third Quarter24Sun
25Mon5:483.66:103.411:310.511:510.57:054:15Third Quarter25Mon
26Tue6:403.57:073.212:270.57:054:15Third Quarter26Tue
27Wed7:333.58:043.212:430.61:240.57:064:16Waning Crescent27Wed
28Thu8:243.68:593.21:350.62:180.47:064:17Waning Crescent28Thu
29Fri9:133.79:483.32:250.63:080.37:064:18Waning Crescent29Fri
30Sat9:583.810:333.33:130.53:530.27:064:18Waning Crescent30Sat
31Sun10:403.911:153.43:570.44:340.17:074:19New Moon31Sun
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