Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 2h 54m at 11:37 am (0.0 ft)
Next high tide : 5:30 pm (5.5 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Oct 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:585.410:225.84:17-0.24:34-0.26:366:21Waning Crescent1Mon
2Tue10:535.711:195.95:11-0.35:33-0.46:376:20New Moon2Tue
3Wed11:436.16:02-0.46:29-0.56:386:18New Moon3Wed
4Thu12:116.012:316.36:50-0.37:21-0.66:406:16New Moon4Thu
5Fri1:005.91:176.37:36-0.28:12-0.56:416:15New Moon5Fri
6Sat1:495.72:026.38:22-0.19:02-0.56:426:13Waxing Crescent6Sat
7Sun2:395.52:496.19:070.19:50-0.36:436:11Waxing Crescent7Sun
8Mon3:295.23:375.89:520.210:39-0.26:446:10Waxing Crescent8Mon
9Tue4:214.94:275.510:370.311:280.06:456:08Waxing Crescent9Tue
10Wed5:154.65:215.211:250.56:466:06First Quarter10Wed
11Thu6:114.46:184.912:190.112:170.56:476:05First Quarter11Thu
12Fri7:084.37:174.71:120.21:120.56:486:03First Quarter12Fri
13Sat8:034.38:154.62:040.22:080.46:496:02First Quarter13Sat
14Sun8:554.49:094.62:540.23:030.36:516:00Waxing Gibbous14Sun
15Mon9:434.69:594.73:410.13:560.26:525:58Waxing Gibbous15Mon
16Tue10:264.810:454.84:260.14:470.16:535:57Waxing Gibbous16Tue
17Wed11:065.011:284.95:090.15:35-0.16:545:55Waxing Gibbous17Wed
18Thu11:415.35:500.16:21-0.26:555:54Full Moon18Thu
19Fri12:075.012:155.66:290.17:06-0.26:565:52Full Moon19Fri
20Sat12:455.012:495.87:080.27:50-0.36:575:51Full Moon20Sat
21Sun1:235.11:266.07:480.28:36-0.36:595:49Waning Gibbous21Sun
22Mon2:045.02:076.18:300.29:23-0.27:005:48Waning Gibbous22Mon
23Tue2:505.02:536.19:160.210:12-0.27:015:46Waning Gibbous23Tue
24Wed3:394.93:456.010:060.311:05-0.17:025:45Waning Gibbous24Wed
25Thu4:344.84:435.811:010.37:035:44Third Quarter25Thu
26Fri5:344.85:475.612:01-0.112:030.37:045:42Third Quarter26Fri
27Sat6:384.96:565.51:00-0.11:110.27:065:41Third Quarter27Sat
28Sun6:425.07:045.41:00-0.11:180.16:074:39Waning Crescent28Sun
29Mon7:445.38:095.41:57-0.22:22-0.16:084:38Waning Crescent29Mon
30Tue8:415.69:095.52:52-0.23:23-0.36:094:37Waning Crescent30Tue
31Wed9:345.910:045.53:46-0.24:21-0.46:104:35Waning Crescent31Wed
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 2:33 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 neap phase. Tonight's moon is 55% 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 minimum.

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 Third Quarter (55% illuminated). This places Chatham, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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