Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Harwich Port, MA.
Next low tide : in 3h 28m at 11:36 am (0.1 ft)
Next high tide : 6:26 pm (3.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - May 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:034.62:414.27:58-0.68:14-0.25:367:38Waxing Crescent1Sun
2Mon2:544.53:334.08:49-0.59:050.05:347:39Waxing Crescent2Mon
3Tue3:454.34:263.99:41-0.39:570.25:337:40Waxing Crescent3Tue
4Wed4:384.15:213.710:340.010:520.45:327:41First Quarter4Wed
5Thu5:343.96:183.611:300.211:500.65:317:42First Quarter5Thu
6Fri6:333.77:153.512:260.45:297:44First Quarter6Fri
7Sat7:323.58:113.512:490.71:220.55:287:45First Quarter7Sat
8Sun8:303.59:043.51:470.72:150.55:277:46Waxing Gibbous8Sun
9Mon9:263.59:533.62:430.63:060.55:267:47Waxing Gibbous9Mon
10Tue10:183.510:383.73:360.53:530.55:257:48Waxing Gibbous10Tue
11Wed11:043.511:193.84:230.44:360.55:247:49Waxing Gibbous11Wed
12Thu11:463.611:573.95:060.35:170.45:237:50Full Moon12Thu
13Fri12:263.65:460.15:560.45:227:51Full Moon13Fri
14Sat12:344.01:063.76:260.16:350.45:217:52Full Moon14Sat
15Sun1:124.01:463.77:060.07:150.45:207:53Full Moon15Sun
16Mon1:514.12:263.77:470.07:570.45:197:54Waning Gibbous16Mon
17Tue2:314.13:083.78:28-0.18:400.45:187:55Waning Gibbous17Tue
18Wed3:144.13:523.79:120.09:260.45:177:56Waning Gibbous18Wed
19Thu3:594.14:393.79:590.010:160.45:167:57Waning Gibbous19Thu
20Fri4:494.05:313.710:490.011:110.45:157:58Third Quarter20Fri
21Sat5:454.06:263.811:440.05:147:59Third Quarter21Sat
22Sun6:443.97:223.912:100.312:400.05:138:00Third Quarter22Sun
23Mon7:453.98:204.11:100.21:370.05:138:01Waning Crescent23Mon
24Tue8:483.99:184.22:110.12:350.05:128:01Waning Crescent24Tue
25Wed9:504.010:154.43:12-0.13:32-0.15:118:02Waning Crescent25Wed
26Thu10:504.011:094.54:11-0.34:28-0.15:118:03Waning Crescent26Thu
27Fri11:464.15:06-0.45:21-0.15:108:04New Moon27Fri
28Sat12:014.612:394.15:59-0.56:12-0.15:108:05New Moon28Sat
29Sun12:524.61:324.16:50-0.57:03-0.15:098:06New Moon29Sun
30Mon1:434.52:244.07:40-0.57:530.05:088:07Waxing Crescent30Mon
31Tue2:334.43:143.98:29-0.38:420.25:088:07Waxing Crescent31Tue
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 3:01 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 48% 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 First Quarter (48% 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