Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide (tomorrow) : 3:59 am (0.4 ft)
Next high tide : in 4h 57m at 9:58 pm (3.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Aug 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:493.48:093.81:070.41:200.65:357:57Third Quarter1Wed
2Thu8:493.39:053.72:070.42:150.75:367:56Waning Crescent2Thu
3Fri9:493.39:593.73:070.43:100.85:377:55Waning Crescent3Fri
4Sat10:433.310:493.84:030.44:020.75:387:54Waning Crescent4Sat
5Sun11:313.311:343.84:510.34:500.75:397:52Waning Crescent5Sun
6Mon12:133.45:340.35:330.65:407:51New Moon6Mon
7Tue12:163.912:533.46:130.26:140.65:417:50New Moon7Tue
8Wed12:553.91:313.56:500.26:540.55:427:49New Moon8Wed
9Thu1:343.92:083.67:270.27:340.45:437:47New Moon9Thu
10Fri2:133.92:443.68:030.18:140.45:447:46Waxing Crescent10Fri
11Sat2:513.93:193.78:400.28:540.45:457:45Waxing Crescent11Sat
12Sun3:303.83:563.79:170.29:360.45:467:43Waxing Crescent12Sun
13Mon4:113.84:353.89:570.310:220.35:477:42Waxing Crescent13Mon
14Tue4:563.75:183.810:400.311:120.35:487:40First Quarter14Tue
15Wed5:453.66:073.911:280.45:497:39First Quarter15Wed
16Thu6:403.57:004.012:060.312:210.45:507:38First Quarter16Thu
17Fri7:393.47:574.01:040.31:180.55:517:36Waxing Gibbous17Fri
18Sat8:413.48:594.12:050.22:180.45:527:35Waxing Gibbous18Sat
19Sun9:453.510:014.33:070.03:200.35:537:33Waxing Gibbous19Sun
20Mon10:473.711:024.44:08-0.14:210.25:547:32Waxing Gibbous20Mon
21Tue11:443.911:594.55:05-0.35:180.05:557:30Full Moon21Tue
22Wed12:384.05:59-0.46:13-0.25:567:29Full Moon22Wed
23Thu12:544.61:314.26:50-0.57:07-0.25:587:27Full Moon23Thu
24Fri1:494.52:224.27:40-0.48:00-0.35:597:25Waning Gibbous24Fri
25Sat2:424.43:114.28:28-0.38:52-0.26:007:24Waning Gibbous25Sat
26Sun3:344.24:004.29:16-0.19:44-0.16:017:22Waning Gibbous26Sun
27Mon4:264.04:494.010:050.110:380.16:027:21Third Quarter27Mon
28Tue5:203.75:413.910:560.411:350.36:037:19Third Quarter28Tue
29Wed6:173.56:353.811:490.66:047:17Third Quarter29Wed
30Thu7:163.37:313.712:330.412:440.86:057:16Third Quarter30Thu
31Fri8:163.28:293.61:330.51:410.86:067:14Waning Crescent31Fri
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 12:58 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 84% 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 Waxing Gibbous (84% 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