Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Harwich Port, MA.
Next low tide : in 42m at 7:47 pm (0.4 ft)
Next high tide (tomorrow) : 2:24 am (4.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:33 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Apr 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:413.76:263.211:420.411:550.76:217:06First Quarter1Sun
2Mon6:393.57:253.212:400.56:197:07First Quarter2Mon
3Tue7:393.48:233.212:540.81:370.66:187:08First Quarter3Tue
4Wed8:393.49:193.21:520.82:330.66:167:09Waxing Gibbous4Wed
5Thu9:363.410:093.42:500.73:250.56:147:10Waxing Gibbous5Thu
6Fri10:273.510:523.53:430.64:100.56:137:11Waxing Gibbous6Fri
7Sat11:113.611:313.74:290.44:510.46:117:12Waxing Gibbous7Sat
8Sun11:523.75:120.25:290.36:097:14Full Moon8Sun
9Mon12:073.812:313.75:520.16:060.26:087:15Full Moon9Mon
10Tue12:433.91:103.76:320.06:440.26:067:16Full Moon10Tue
11Wed1:204.01:503.77:12-0.17:240.26:047:17Full Moon11Wed
12Thu1:584.12:313.77:53-0.18:050.26:037:18Waning Gibbous12Thu
13Fri2:394.13:143.78:37-0.18:480.36:017:19Waning Gibbous13Fri
14Sat3:224.14:013.69:23-0.19:350.36:007:20Waning Gibbous14Sat
15Sun4:114.14:533.510:140.010:280.45:587:21Third Quarter15Sun
16Mon5:054.05:503.511:100.011:280.45:577:22Third Quarter16Mon
17Tue6:053.96:513.512:090.15:557:23Third Quarter17Tue
18Wed7:093.97:543.612:310.41:100.15:547:24Third Quarter18Wed
19Thu8:153.98:563.81:350.32:100.15:527:26Waning Crescent19Thu
20Fri9:213.99:554.02:390.23:100.05:507:27Waning Crescent20Fri
21Sat10:234.010:494.23:410.04:06-0.15:497:28Waning Crescent21Sat
22Sun11:194.111:394.34:38-0.24:58-0.15:487:29New Moon22Sun
23Mon12:114.15:30-0.45:46-0.15:467:30New Moon23Mon
24Tue12:274.41:014.16:20-0.56:33-0.15:457:31New Moon24Tue
25Wed1:134.41:504.07:08-0.47:200.05:437:32New Moon25Wed
26Thu1:594.32:373.87:55-0.38:050.25:427:33Waxing Crescent26Thu
27Fri2:444.23:243.78:41-0.28:510.35:407:34Waxing Crescent27Fri
28Sat3:304.04:113.69:280.09:380.55:397:35Waxing Crescent28Sat
29Sun4:173.95:003.410:160.210:280.75:387:36Waxing Crescent29Sun
30Mon5:073.75:513.311:060.411:210.85:367:38First Quarter30Mon
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 11:05 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 96% 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 (96% 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