Tides Today & Tomorrow in Harwich Port, MA

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Harwich Port, MA.
Next low tide : 2:12 pm (0.4 ft)
Next high tide : in 40m at 8:34 am (3.5 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8447506
Common Questions About Tides

Harwich Port, MA Tides - May 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:033.711:223.84:200.34:400.45:357:38Waxing Gibbous1Sun
2Mon11:483.75:070.25:200.45:347:40Full Moon2Mon
3Tue12:003.912:293.65:480.15:570.45:337:41Full Moon3Tue
4Wed12:363.91:083.66:270.16:340.55:327:42Full Moon4Wed
5Thu1:113.91:463.67:050.17:110.55:307:43Full Moon5Thu
6Fri1:473.92:243.57:430.17:490.65:297:44Waning Gibbous6Fri
7Sat2:243.93:033.48:210.28:280.75:287:45Waning Gibbous7Sat
8Sun3:033.83:443.39:020.39:080.75:277:46Waning Gibbous8Sun
9Mon3:443.74:273.39:440.39:520.85:267:47Waning Gibbous9Mon
10Tue4:283.75:133.210:300.410:400.95:257:48Waning Gibbous10Tue
11Wed5:163.66:033.211:190.511:330.95:237:49Third Quarter11Wed
12Thu6:093.66:543.312:110.55:227:50Third Quarter12Thu
13Fri7:043.67:463.412:280.81:020.45:217:51Third Quarter13Fri
14Sat8:003.68:373.61:250.61:540.35:207:52Waning Crescent14Sat
15Sun8:583.79:283.92:220.42:470.25:197:53Waning Crescent15Sun
16Mon9:543.810:184.23:180.23:390.15:187:54Waning Crescent16Mon
17Tue10:494.011:074.44:13-0.14:290.05:187:55Waning Crescent17Tue
18Wed11:424.011:564.65:06-0.45:19-0.15:177:56New Moon18Wed
19Thu12:354.15:58-0.66:10-0.15:167:57New Moon19Thu
20Fri12:464.71:294.16:50-0.67:01-0.15:157:58New Moon20Fri
21Sat1:394.72:244.07:43-0.67:540.05:147:59Waxing Crescent21Sat
22Sun2:334.63:203.98:37-0.58:480.15:138:00Waxing Crescent22Sun
23Mon3:294.54:173.89:32-0.39:450.35:138:01Waxing Crescent23Mon
24Tue4:274.25:183.710:29-0.110:450.45:128:02First Quarter24Tue
25Wed5:294.06:203.611:290.111:490.55:118:03First Quarter25Wed
26Thu6:343.87:213.612:290.25:118:03First Quarter26Thu
27Fri7:383.78:183.612:540.61:270.45:108:04First Quarter27Fri
28Sat8:413.59:133.71:570.62:230.55:098:05Waxing Gibbous28Sat
29Sun9:403.510:023.82:570.53:150.55:098:06Waxing Gibbous29Sun
30Mon10:333.510:463.83:520.44:020.65:088:07Waxing Gibbous30Mon
31Tue11:203.511:273.94:400.34:450.65:088:08Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447506)

Common Questions About Harwich Port, MA Tides

Show All
What time does the tide turn (slack tide) in Harwich Port, MA today?

Slack tide in Harwich Port, MA is approximately 11:23 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 20% 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 Crescent (20% 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