Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 5h 26m at 2:47 pm (0.1 ft)
Next high tide : 8:51 pm (5.8 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Aug 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:083.89:154.83:150.13:000.45:337:58Waxing Gibbous1Wed
2Thu10:013.910:064.94:090.13:510.45:347:57Waxing Gibbous2Thu
3Fri10:514.010:535.15:000.04:420.45:357:55Waxing Gibbous3Fri
4Sat11:354.111:355.35:47-0.15:310.45:367:54Waxing Gibbous4Sat
5Sun12:154.36:30-0.26:180.35:377:53Full Moon5Sun
6Mon12:145.412:514.57:11-0.27:030.25:387:52Full Moon6Mon
7Tue12:525.61:264.87:50-0.27:470.15:407:51Full Moon7Tue
8Wed1:305.72:015.08:28-0.38:330.05:417:49Waning Gibbous8Wed
9Thu2:105.62:385.39:05-0.39:19-0.15:427:48Waning Gibbous9Thu
10Fri2:545.53:195.59:43-0.210:08-0.15:437:47Waning Gibbous10Fri
11Sat3:415.34:055.610:23-0.210:59-0.15:447:45Waning Gibbous11Sat
12Sun4:335.14:545.711:06-0.111:57-0.15:457:44Third Quarter12Sun
13Mon5:294.85:505.711:560.05:467:43Third Quarter13Mon
14Tue6:324.56:515.71:000.012:540.15:477:41Third Quarter14Tue
15Wed7:384.47:575.72:060.01:580.25:487:40Waning Crescent15Wed
16Thu8:454.49:035.73:120.03:040.25:497:38Waning Crescent16Thu
17Fri9:494.510:075.84:15-0.14:090.25:507:37Waning Crescent17Fri
18Sat10:494.711:076.05:14-0.35:110.15:517:35Waning Crescent18Sat
19Sun11:445.06:08-0.46:080.05:527:34New Moon19Sun
20Mon12:006.012:335.26:57-0.47:02-0.15:537:32New Moon20Mon
21Tue12:506.01:205.47:43-0.47:53-0.15:547:31New Moon21Tue
22Wed1:375.82:045.48:26-0.38:42-0.15:557:29Waxing Crescent22Wed
23Thu2:245.62:485.49:07-0.29:29-0.15:567:28Waxing Crescent23Thu
24Fri3:125.33:325.49:460.010:150.05:577:26Waxing Crescent24Fri
25Sat4:004.94:155.210:240.211:020.15:587:25Waxing Crescent25Sat
26Sun4:494.65:005.111:030.311:510.25:597:23First Quarter26Sun
27Mon5:414.25:494.911:450.46:007:22First Quarter27Mon
28Tue6:374.06:424.712:440.312:320.56:017:20First Quarter28Tue
29Wed7:343.87:384.71:390.31:250.66:027:18First Quarter29Wed
30Thu8:313.88:344.72:350.32:200.56:037:17Waxing Gibbous30Thu
31Fri9:243.99:274.83:290.23:150.56:047:15Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447435)

Common Questions About Chatham, MA Tides

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What time does the tide turn (slack tide) in Chatham, MA today?

Slack tide in Chatham, MA is approximately 5:49 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 Chatham, MA?

Chatham, 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 Chatham, 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 Chatham, MA?

Tide predictions for Chatham, 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 Chatham, MA?

Tide data for Chatham, MA is sourced from NOAA Station #8447435. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447435.

What is the moon phase in Chatham, MA tonight?

Tonight the moon over Chatham, MA is Waning Crescent (20% illuminated). This places Chatham, 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