Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Harwich Port, MA.
Next low tide (tomorrow) : in 5h 35m at 2:06 am (0.5 ft)
Next high tide (tomorrow) : 8:48 am (3.4 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Sep 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:013.55:193.710:410.511:130.56:067:13Third Quarter1Tue
2Wed5:493.46:063.711:280.66:077:11Third Quarter2Wed
3Thu6:413.36:583.712:050.512:190.76:087:10Third Quarter3Thu
4Fri7:373.37:533.81:000.51:130.76:097:08Third Quarter4Fri
5Sat8:353.48:503.91:570.42:100.66:107:06Waning Crescent5Sat
6Sun9:333.59:494.12:550.23:090.46:117:05Waning Crescent6Sun
7Mon10:293.710:454.33:510.04:060.26:137:03Waning Crescent7Mon
8Tue11:224.011:394.54:45-0.25:01-0.16:147:01New Moon8Tue
9Wed12:134.25:36-0.45:54-0.36:156:59New Moon9Wed
10Thu12:324.61:034.46:26-0.56:46-0.56:166:58New Moon10Thu
11Fri1:254.61:544.57:15-0.67:39-0.66:176:56Waxing Crescent11Fri
12Sat2:194.62:454.68:05-0.58:32-0.56:186:54Waxing Crescent12Sat
13Sun3:134.43:364.58:55-0.49:26-0.46:196:52Waxing Crescent13Sun
14Mon4:084.24:304.49:47-0.210:22-0.26:206:51First Quarter14Mon
15Tue5:054.05:264.210:420.111:210.06:216:49First Quarter15Tue
16Wed6:073.76:264.011:400.36:226:47First Quarter16Wed
17Thu7:113.67:293.912:240.112:410.56:236:46First Quarter17Thu
18Fri8:163.58:323.81:270.31:430.66:246:44Waxing Gibbous18Fri
19Sat9:193.59:333.82:300.32:440.66:256:42Waxing Gibbous19Sat
20Sun10:173.510:283.83:300.33:420.66:266:40Waxing Gibbous20Sun
21Mon11:053.611:163.84:210.34:320.56:276:39Waxing Gibbous21Mon
22Tue11:463.711:573.95:040.35:160.46:286:37Full Moon22Tue
23Wed12:233.75:430.25:560.36:296:35Full Moon23Wed
24Thu12:363.912:583.86:190.26:350.26:306:33Full Moon24Thu
25Fri1:143.91:333.86:540.27:130.26:316:32Full Moon25Fri
26Sat1:513.82:083.97:300.37:510.26:326:30Waning Gibbous26Sat
27Sun2:293.82:433.98:070.38:300.26:336:28Waning Gibbous27Sun
28Mon3:083.73:203.88:440.49:110.36:346:26Waning Gibbous28Mon
29Tue3:483.63:593.89:240.59:540.36:356:25Waning Gibbous29Tue
30Wed4:313.54:423.810:070.610:410.46:366:23Third Quarter30Wed
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 5:27 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 67% 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 (67% 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