Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide (tomorrow) : 4:18 am (0.5 ft)
Next high tide : in 3h 07m at 10:13 pm (3.7 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Jul 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:093.39:263.72:310.62:420.75:108:18Waxing Gibbous1Thu
2Fri10:023.310:133.83:230.53:310.75:108:18Waxing Gibbous2Fri
3Sat10:513.310:594.04:130.34:190.65:118:18Waxing Gibbous3Sat
4Sun11:393.411:444.15:010.25:060.55:128:18Full Moon4Sun
5Mon12:253.55:470.05:530.45:128:17Full Moon5Mon
6Tue12:294.21:123.66:33-0.16:400.35:138:17Full Moon6Tue
7Wed1:174.32:003.77:20-0.27:290.25:138:17Full Moon7Wed
8Thu2:064.42:493.88:08-0.38:190.25:148:16Waning Gibbous8Thu
9Fri2:574.43:383.98:56-0.39:120.15:158:16Waning Gibbous9Fri
10Sat3:494.34:294.09:46-0.310:060.15:168:15Waning Gibbous10Sat
11Sun4:444.25:234.010:38-0.211:050.15:168:15Third Quarter11Sun
12Mon5:424.06:184.111:32-0.15:178:14Third Quarter12Mon
13Tue6:433.97:154.112:050.112:280.15:188:14Third Quarter13Tue
14Wed7:453.78:124.11:070.11:250.25:198:13Waning Crescent14Wed
15Thu8:493.69:114.12:090.12:230.35:208:13Waning Crescent15Thu
16Fri9:533.610:094.13:110.13:210.45:208:12Waning Crescent16Fri
17Sat10:533.611:034.24:100.04:170.45:218:11Waning Crescent17Sat
18Sun11:473.611:534.25:050.05:100.45:228:10New Moon18Sun
19Mon12:373.65:55-0.15:580.45:238:10New Moon19Mon
20Tue12:414.11:233.66:410.06:450.45:248:09New Moon20Tue
21Wed1:264.12:073.67:240.07:290.45:258:08New Moon21Wed
22Thu2:104.02:483.68:050.18:130.55:268:07Waxing Crescent22Thu
23Fri2:523.93:283.68:450.18:560.55:278:06Waxing Crescent23Fri
24Sat3:343.84:073.69:250.29:400.55:278:05Waxing Crescent24Sat
25Sun4:173.74:483.610:060.410:250.65:288:05Waxing Crescent25Sun
26Mon5:023.65:313.610:480.511:130.65:298:04First Quarter26Mon
27Tue5:493.46:153.611:330.65:308:03First Quarter27Tue
28Wed6:393.37:023.612:030.712:190.75:318:02First Quarter28Wed
29Thu7:313.27:503.612:550.71:080.75:328:01First Quarter29Thu
30Fri8:253.28:413.71:480.61:590.85:337:59Waxing Gibbous30Fri
31Sat9:213.29:333.82:430.52:520.75:347:58Waxing Gibbous31Sat
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 1:15 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 86% 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 Waxing Gibbous (86% 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