Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide : 6:50 am (0.2 ft)
Next high tide : in 24m at 12:50 am (3.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:09 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - May 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:423.410:093.53:000.73:230.65:367:38Waning Crescent1Tue
2Wed10:323.510:503.73:520.54:070.65:347:39Waning Crescent2Wed
3Thu11:163.511:283.84:370.44:480.55:337:40Waning Crescent3Thu
4Fri11:573.55:180.35:260.55:327:41New Moon4Fri
5Sat12:053.912:373.65:580.26:040.55:317:42New Moon5Sat
6Sun12:414.01:163.66:370.16:430.55:297:43New Moon6Sun
7Mon1:194.01:563.57:170.07:230.55:287:44New Moon7Mon
8Tue1:584.02:383.57:580.08:050.55:277:46Waxing Crescent8Tue
9Wed2:394.03:213.58:410.08:490.55:267:47Waxing Crescent9Wed
10Thu3:244.04:073.59:270.09:360.55:257:48Waxing Crescent10Thu
11Fri4:124.04:573.510:160.110:290.55:247:49Waxing Crescent11Fri
12Sat5:054.05:513.611:100.111:280.55:237:50First Quarter12Sat
13Sun6:043.96:483.712:060.15:227:51First Quarter13Sun
14Mon7:063.97:463.812:290.41:020.15:217:52First Quarter14Mon
15Tue8:083.88:434.01:310.31:590.15:207:53Waxing Gibbous15Tue
16Wed9:123.99:404.22:330.12:560.15:197:54Waxing Gibbous16Wed
17Thu10:133.910:344.43:33-0.13:520.05:187:55Waxing Gibbous17Thu
18Fri11:103.911:254.54:31-0.34:450.05:177:56Full Moon18Fri
19Sat12:054.05:24-0.45:360.05:167:57Full Moon19Sat
20Sun12:154.512:573.96:16-0.46:260.15:157:58Full Moon20Sun
21Mon1:054.51:493.97:06-0.47:160.25:147:59Full Moon21Mon
22Tue1:554.42:403.87:56-0.38:050.35:148:00Waning Gibbous22Tue
23Wed2:444.33:293.78:44-0.18:540.45:138:00Waning Gibbous23Wed
24Thu3:344.14:183.69:330.09:440.65:128:01Waning Gibbous24Thu
25Fri4:243.95:093.510:220.210:360.75:118:02Waning Gibbous25Fri
26Sat5:163.76:003.411:120.411:310.85:118:03Third Quarter26Sat
27Sun6:103.66:513.412:030.55:108:04Third Quarter27Sun
28Mon7:053.47:413.512:270.812:530.65:108:05Third Quarter28Mon
29Tue8:003.38:303.51:220.81:420.75:098:06Third Quarter29Tue
30Wed8:543.39:173.62:160.72:300.75:098:06Waning Crescent30Wed
31Thu9:473.310:033.73:090.63:180.75:088:07Waning Crescent31Thu
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 3:50 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 100% 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 Full Moon (100% 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