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 : in 2h 15m at 12:45 pm (0.6 ft)
Next high tide : 7:33 pm (3.7 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 - May 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:473.59:253.52:030.72:350.55:357:39Waning Crescent1Mon
2Tue9:443.510:153.63:010.63:270.55:347:40Waning Crescent2Tue
3Wed10:353.610:583.73:530.54:130.45:337:41Waning Crescent3Wed
4Thu11:193.611:373.84:390.44:540.45:317:42Waning Crescent4Thu
5Fri12:003.75:200.25:330.45:307:43New Moon5Fri
6Sat12:133.912:393.76:000.16:100.35:297:44New Moon6Sat
7Sun12:494.01:183.76:380.16:480.35:287:45New Moon7Sun
8Mon1:254.01:573.77:170.07:270.45:277:46New Moon8Mon
9Tue2:024.02:363.67:570.08:070.45:267:47Waxing Crescent9Tue
10Wed2:414.03:173.68:380.08:480.45:247:48Waxing Crescent10Wed
11Thu3:224.04:003.69:210.09:320.55:237:49Waxing Crescent11Thu
12Fri4:064.04:473.610:070.110:210.55:227:50Waxing Crescent12Fri
13Sat4:553.95:383.610:580.111:160.55:217:51First Quarter13Sat
14Sun5:493.96:333.611:520.15:207:52First Quarter14Sun
15Mon6:483.97:313.812:140.412:490.15:197:53First Quarter15Mon
16Tue7:503.98:283.91:140.31:460.05:187:54Waxing Gibbous16Tue
17Wed8:524.09:264.12:150.22:440.05:177:55Waxing Gibbous17Wed
18Thu9:544.110:224.33:16-0.13:41-0.15:177:56Waxing Gibbous18Thu
19Fri10:534.111:154.54:15-0.34:35-0.25:167:57Waxing Gibbous19Fri
20Sat11:494.25:10-0.55:27-0.35:157:58Full Moon20Sat
21Sun12:074.612:434.26:03-0.66:18-0.25:147:59Full Moon21Sun
22Mon12:574.71:364.26:54-0.67:09-0.25:138:00Full Moon22Mon
23Tue1:484.62:294.17:45-0.67:590.05:138:01Waning Gibbous23Tue
24Wed2:394.53:214.08:36-0.48:500.15:128:02Waning Gibbous24Wed
25Thu3:304.34:133.89:26-0.29:410.35:118:03Waning Gibbous25Thu
26Fri4:214.15:053.710:170.010:350.55:118:04Waning Gibbous26Fri
27Sat5:153.96:003.611:100.211:310.65:108:04Third Quarter27Sat
28Sun6:113.76:543.512:040.45:098:05Third Quarter28Sun
29Mon7:073.67:473.512:280.712:570.55:098:06Third Quarter29Mon
30Tue8:043.58:393.61:240.71:490.65:088:07Third Quarter30Tue
31Wed8:593.49:283.62:200.72:390.65:088:08Waning Crescent31Wed
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 4:09 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 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