Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Harwich Port, MA.
Next low tide : in 43m at 6:10 pm (0.7 ft)
Next high tide (tomorrow) : 12:50 am (3.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:08 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Apr 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:303.510:093.32:410.73:240.56:227:05Waning Crescent1Sun
2Mon10:243.510:543.43:390.64:120.56:207:06Waning Crescent2Mon
3Tue11:103.611:333.64:280.54:530.46:197:07Waning Crescent3Tue
4Wed11:513.65:100.35:290.36:177:09New Moon4Wed
5Thu12:083.712:293.75:490.26:040.36:157:10New Moon5Thu
6Fri12:423.81:063.76:270.16:390.36:147:11New Moon6Fri
7Sat1:163.81:433.67:040.17:140.36:127:12New Moon7Sat
8Sun1:503.92:203.67:420.17:510.46:107:13Waxing Crescent8Sun
9Mon2:263.92:593.58:210.18:290.46:097:14Waxing Crescent9Mon
10Tue3:033.93:393.49:010.19:100.56:077:15Waxing Crescent10Tue
11Wed3:443.94:233.49:460.29:550.66:057:16Waxing Crescent11Wed
12Thu4:303.85:133.310:350.210:460.66:047:17First Quarter12Thu
13Fri5:223.86:093.311:300.311:440.66:027:18First Quarter13Fri
14Sat6:213.87:093.412:280.36:017:19First Quarter14Sat
15Sun7:243.88:093.512:460.61:280.25:597:21First Quarter15Sun
16Mon8:283.99:093.71:490.42:270.15:577:22Waxing Gibbous16Mon
17Tue9:324.010:054.02:520.23:240.05:567:23Waxing Gibbous17Tue
18Wed10:324.110:584.33:52-0.14:18-0.25:547:24Waxing Gibbous18Wed
19Thu11:284.211:484.54:48-0.45:10-0.35:537:25Full Moon19Thu
20Fri12:214.25:41-0.65:59-0.35:517:26Full Moon20Fri
21Sat12:374.61:134.26:33-0.66:48-0.25:507:27Full Moon21Sat
22Sun1:264.62:054.17:23-0.67:37-0.15:487:28Waning Gibbous22Sun
23Mon2:154.52:573.98:14-0.58:260.15:477:29Waning Gibbous23Mon
24Tue3:054.43:483.89:04-0.39:160.35:457:30Waning Gibbous24Tue
25Wed3:564.24:423.69:56-0.110:090.55:447:32Waning Gibbous25Wed
26Thu4:503.95:383.410:510.211:050.75:437:33Third Quarter26Thu
27Fri5:483.76:373.311:480.45:417:34Third Quarter27Fri
28Sat6:483.57:353.312:050.812:460.55:407:35Third Quarter28Sat
29Sun7:483.48:303.31:050.81:410.65:387:36Third Quarter29Sun
30Mon8:473.49:223.42:040.82:340.65:377:37Waning Crescent30Mon
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 9:30 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 100% 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 Full Moon (100% 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