Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Harwich Port, MA.
Next low tide (tomorrow) : in 3h 36m at 1:30 am (0.5 ft)
Next high tide (tomorrow) : 8:11 am (3.2 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:25 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Mar 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:093.82:273.87:480.18:080.16:135:31Waxing Crescent1Thu
2Fri2:473.73:083.68:300.28:480.36:125:32Waxing Crescent2Fri
3Sat3:273.63:523.49:140.39:310.46:105:33Waxing Crescent3Sat
4Sun4:103.54:403.310:020.410:180.66:095:34First Quarter4Sun
5Mon4:573.55:323.110:530.511:080.76:075:35First Quarter5Mon
6Tue5:493.46:273.111:470.56:055:36First Quarter6Tue
7Wed6:433.47:243.112:010.712:430.56:045:38First Quarter7Wed
8Thu7:393.58:213.112:560.71:390.46:025:39Waxing Gibbous8Thu
9Fri8:353.69:153.31:520.62:340.36:005:40Waxing Gibbous9Fri
10Sat9:283.810:033.52:460.43:240.15:595:41Waxing Gibbous10Sat
11Sun11:174.011:483.84:370.25:11-0.26:576:42Waxing Gibbous11Sun
12Mon12:044.25:25-0.15:56-0.36:556:43Full Moon12Mon
13Tue12:334.012:504.36:12-0.36:41-0.56:546:44Full Moon13Tue
14Wed1:174.21:384.47:00-0.57:26-0.66:526:46Full Moon14Wed
15Thu2:034.42:274.47:49-0.68:13-0.56:506:47Waning Gibbous15Thu
16Fri2:504.43:184.38:39-0.69:01-0.46:496:48Waning Gibbous16Fri
17Sat3:394.44:104.19:31-0.59:52-0.36:476:49Waning Gibbous17Sat
18Sun4:314.35:063.910:26-0.410:47-0.16:456:50Third Quarter18Sun
19Mon5:274.26:083.711:26-0.211:460.26:446:51Third Quarter19Mon
20Tue6:294.07:143.512:290.06:426:52Third Quarter20Tue
21Wed7:343.98:233.412:490.31:340.16:406:53Third Quarter21Wed
22Thu8:433.89:323.51:540.42:410.16:386:54Waning Crescent22Thu
23Fri9:503.810:333.62:590.43:440.16:376:56Waning Crescent23Fri
24Sat10:493.911:243.74:010.34:390.16:356:57Waning Crescent24Sat
25Sun11:393.94:540.25:250.06:336:58New Moon25Sun
26Mon12:083.812:243.95:410.16:060.06:326:59New Moon26Mon
27Tue12:483.81:053.96:230.06:440.06:307:00New Moon27Tue
28Wed1:253.91:443.97:030.07:210.16:287:01New Moon28Wed
29Thu2:003.92:223.87:420.07:580.26:277:02Waxing Crescent29Thu
30Fri2:363.83:003.78:210.18:360.36:257:03Waxing Crescent30Fri
31Sat3:123.83:403.69:010.19:140.46:237:04Waxing Crescent31Sat
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 4:50 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 First Quarter (62% illuminated). This places Harwich Port, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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