Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide : 9:10 pm (0.3 ft)
Next high tide : in 5h 38m at 3:31 pm (3.8 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - May 2088

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:443.810:143.92:570.33:240.25:357:39Waxing Gibbous1Sat
2Sun10:423.811:034.03:560.24:160.25:337:40Waxing Gibbous2Sun
3Mon11:313.811:464.04:480.15:030.25:327:41Waxing Gibbous3Mon
4Tue12:163.85:340.05:450.35:317:42Full Moon4Tue
5Wed12:264.112:573.76:150.06:250.35:307:43Full Moon5Wed
6Thu1:044.11:373.76:550.07:040.35:297:44Full Moon6Thu
7Fri1:424.02:173.67:350.07:440.45:277:45Full Moon7Fri
8Sat2:204.02:563.68:140.18:240.55:267:46Waning Gibbous8Sat
9Sun3:003.93:363.58:550.19:050.65:257:47Waning Gibbous9Sun
10Mon3:413.84:193.59:360.29:490.65:247:49Waning Gibbous10Mon
11Tue4:243.75:033.410:200.310:350.75:237:50Waning Gibbous11Tue
12Wed5:103.75:503.411:070.411:260.75:227:51Third Quarter12Wed
13Thu6:003.66:393.411:560.45:217:52Third Quarter13Thu
14Fri6:533.67:293.512:180.712:460.45:207:53Third Quarter14Fri
15Sat7:473.68:193.71:120.61:370.45:197:54Third Quarter15Sat
16Sun8:423.69:103.92:070.42:290.35:187:55Waning Crescent16Sun
17Mon9:383.710:014.13:020.23:210.25:177:56Waning Crescent17Mon
18Tue10:323.910:514.43:570.04:130.15:167:57Waning Crescent18Tue
19Wed11:254.011:404.64:49-0.35:04-0.15:157:58New Moon19Wed
20Thu12:174.15:40-0.55:54-0.25:157:58New Moon20Thu
21Fri12:314.71:094.26:32-0.66:46-0.25:147:59New Moon21Fri
22Sat1:234.82:034.27:24-0.77:38-0.25:138:00Waxing Crescent22Sat
23Sun2:164.72:584.28:16-0.78:32-0.25:128:01Waxing Crescent23Sun
24Mon3:124.63:544.19:10-0.69:28-0.15:128:02Waxing Crescent24Mon
25Tue4:084.44:524.010:05-0.410:260.15:118:03First Quarter25Tue
26Wed5:084.25:524.011:02-0.211:270.25:108:04First Quarter26Wed
27Thu6:104.06:523.912:010.05:108:05First Quarter27Thu
28Fri7:143.87:523.912:300.31:000.25:098:06First Quarter28Fri
29Sat8:173.78:493.91:330.31:570.35:098:06Waxing Gibbous29Sat
30Sun9:193.69:443.92:350.32:530.45:088:07Waxing Gibbous30Sun
31Mon10:173.610:344.03:340.33:460.45:088:08Waxing Gibbous31Mon
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 6:20 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 84% 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 (84% 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