Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide : 4:11 pm (0.2 ft)
Next high tide : in 10m at 10:38 am (3.6 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Nov 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:343.25:413.711:050.811:470.47:135:34Third Quarter1Sat
2Sun5:293.35:403.711:040.711:420.36:144:32Third Quarter2Sun
3Mon6:253.56:403.812:040.66:154:31Third Quarter3Mon
4Tue7:203.77:413.812:370.21:040.46:174:30Waning Crescent4Tue
5Wed8:144.08:413.91:320.12:030.16:184:29Waning Crescent5Wed
6Thu9:074.29:384.02:270.03:00-0.26:194:28Waning Crescent6Thu
7Fri9:584.510:324.13:19-0.13:55-0.46:204:27New Moon7Fri
8Sat10:484.711:254.14:10-0.24:47-0.66:224:26New Moon8Sat
9Sun11:384.75:00-0.25:39-0.76:234:25New Moon9Sun
10Mon12:184.112:294.75:51-0.26:31-0.66:244:24Waxing Crescent10Mon
11Tue1:124.01:224.66:430.07:24-0.56:254:23Waxing Crescent11Tue
12Wed2:073.92:164.47:350.18:17-0.36:264:22Waxing Crescent12Wed
13Thu3:023.73:114.28:290.39:12-0.16:284:21Waxing Crescent13Thu
14Fri3:593.64:093.99:260.510:090.26:294:20First Quarter14Fri
15Sat4:593.55:103.710:270.611:070.36:304:19First Quarter15Sat
16Sun5:583.46:123.611:290.76:314:18First Quarter16Sun
17Mon6:543.57:123.412:040.512:300.76:324:17First Quarter17Mon
18Tue7:473.58:093.412:570.51:280.66:344:17Waxing Gibbous18Tue
19Wed8:363.69:023.41:480.62:230.56:354:16Waxing Gibbous19Wed
20Thu9:203.79:493.42:350.63:110.46:364:15Waxing Gibbous20Thu
21Fri10:013.810:323.43:180.63:540.36:374:15Waxing Gibbous21Fri
22Sat10:393.811:123.43:580.64:340.26:384:14Full Moon22Sat
23Sun11:163.911:523.44:370.65:130.26:394:13Full Moon23Sun
24Mon11:533.95:160.55:520.16:414:13Full Moon24Mon
25Tue12:323.412:323.95:550.56:320.16:424:12Full Moon25Tue
26Wed1:123.41:123.96:350.67:130.16:434:12Waning Gibbous26Wed
27Thu1:533.41:533.97:170.67:550.16:444:12Waning Gibbous27Thu
28Fri2:353.42:373.98:020.68:400.16:454:11Waning Gibbous28Fri
29Sat3:203.43:253.88:500.69:270.16:464:11Waning Gibbous29Sat
30Sun4:093.44:183.89:430.510:180.26:474:10Third Quarter30Sun
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 1:24 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 spring phase. Tonight's moon is 5% 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 Crescent (5% 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