Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Harwich Port, MA.
Next low tide : in 1h 30m at 9:37 pm (0.6 ft)
Next high tide (tomorrow) : 4:11 am (3.8 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 - May 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:014.82:394.37:59-0.88:15-0.35:357:39Waxing Crescent1Wed
2Thu2:544.73:344.28:52-0.79:09-0.25:347:40Waxing Crescent2Thu
3Fri3:484.54:314.09:46-0.510:050.05:337:41Waxing Crescent3Fri
4Sat4:464.35:313.910:44-0.311:040.25:317:42First Quarter4Sat
5Sun5:484.16:343.811:440.05:307:43First Quarter5Sun
6Mon6:523.97:363.712:070.312:450.15:297:44First Quarter6Mon
7Tue7:573.78:373.71:110.41:450.35:287:45First Quarter7Tue
8Wed9:013.79:353.82:140.42:430.35:277:46Waxing Gibbous8Wed
9Thu10:003.610:253.83:150.43:370.45:257:47Waxing Gibbous9Thu
10Fri10:523.611:103.94:090.34:250.45:247:48Waxing Gibbous10Fri
11Sat11:383.711:493.94:560.25:070.45:237:49Waxing Gibbous11Sat
12Sun12:193.75:380.15:470.45:227:50Full Moon12Sun
13Mon12:274.012:583.76:170.16:250.45:217:51Full Moon13Mon
14Tue1:034.01:363.66:550.17:040.45:207:52Full Moon14Tue
15Wed1:414.02:153.67:340.17:430.55:197:53Full Moon15Wed
16Thu2:194.02:543.68:130.18:220.55:187:54Waning Gibbous16Thu
17Fri2:583.93:343.58:520.19:030.65:177:55Waning Gibbous17Fri
18Sat3:383.94:153.59:340.29:470.65:167:56Waning Gibbous18Sat
19Sun4:213.85:003.510:180.210:340.65:167:57Waning Gibbous19Sun
20Mon5:073.85:473.511:050.311:250.65:157:58Third Quarter20Mon
21Tue5:583.76:373.611:550.35:147:59Third Quarter21Tue
22Wed6:523.77:283.712:190.512:470.35:138:00Third Quarter22Wed
23Thu7:483.88:213.91:150.41:400.25:128:01Waning Crescent23Thu
24Fri8:473.89:164.12:120.22:350.15:128:02Waning Crescent24Fri
25Sat9:453.910:104.43:100.03:300.05:118:03Waning Crescent25Sat
26Sun10:434.011:034.64:07-0.34:24-0.15:108:04Waning Crescent26Sun
27Mon11:384.211:554.75:02-0.55:17-0.25:108:04New Moon27Mon
28Tue12:334.25:55-0.66:10-0.35:098:05New Moon28Tue
29Wed12:484.81:284.26:48-0.77:03-0.35:098:06New Moon29Wed
30Thu1:424.82:234.27:41-0.77:56-0.25:088:07Waxing Crescent30Thu
31Fri2:364.73:194.28:34-0.68:51-0.15:088:08Waxing 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 12:54 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 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