Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide : 7:55 pm (0.0 ft)
Next high tide : in 5h 42m at 2:25 pm (4.0 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - Sep 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:303.63:463.89:080.49:340.46:077:12Waxing Crescent1Sat
2Sun4:113.54:263.79:490.510:190.46:087:10Waxing Crescent2Sun
3Mon4:553.45:103.710:320.611:070.56:097:09First Quarter3Mon
4Tue5:443.35:593.711:200.76:107:07First Quarter4Tue
5Wed6:373.36:523.712:000.512:130.76:117:05First Quarter5Wed
6Thu7:333.37:493.812:550.51:090.76:127:04First Quarter6Thu
7Fri8:303.48:473.91:520.42:070.56:137:02Waxing Gibbous7Fri
8Sat9:283.69:464.12:490.23:060.36:147:00Waxing Gibbous8Sat
9Sun10:233.810:424.33:440.04:030.16:156:59Waxing Gibbous9Sun
10Mon11:144.111:354.44:37-0.24:57-0.26:166:57Full Moon10Mon
11Tue12:044.35:27-0.45:50-0.46:176:55Full Moon11Tue
12Wed12:274.512:544.56:16-0.56:42-0.66:186:53Full Moon12Wed
13Thu1:204.61:444.67:05-0.57:34-0.76:196:52Waning Gibbous13Thu
14Fri2:134.52:354.77:55-0.58:26-0.66:206:50Waning Gibbous14Fri
15Sat3:074.33:274.68:46-0.39:20-0.56:216:48Waning Gibbous15Sat
16Sun4:024.14:204.49:38-0.110:16-0.36:226:46Third Quarter16Sun
17Mon4:593.95:184.210:330.111:160.06:236:45Third Quarter17Mon
18Tue6:013.76:204.011:330.46:246:43Third Quarter18Tue
19Wed7:053.57:243.912:180.212:350.56:256:41Third Quarter19Wed
20Thu8:103.58:283.81:220.31:370.66:266:39Waning Crescent20Thu
21Fri9:123.59:303.72:240.42:390.66:276:38Waning Crescent21Fri
22Sat10:083.510:253.83:220.43:370.56:286:36Waning Crescent22Sat
23Sun10:553.611:113.84:130.34:270.46:296:34Waning Crescent23Sun
24Mon11:363.711:533.84:550.35:110.36:306:33New Moon24Mon
25Tue12:123.85:330.35:510.26:316:31New Moon25Tue
26Wed12:313.812:473.96:090.36:290.26:336:29New Moon26Wed
27Thu1:093.81:223.96:450.37:070.26:346:27New Moon27Thu
28Fri1:463.71:583.97:210.37:460.26:356:26Waxing Crescent28Fri
29Sat2:243.72:343.97:580.48:250.26:366:24Waxing Crescent29Sat
30Sun3:033.63:123.98:360.59:050.36:376:22Waxing Crescent30Sun
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 5:10 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 7% 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 Crescent (7% 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