Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 2h 42m at 2:45 am (0.0 ft)
Next high tide : 8:16 am (4.3 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 5:41 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Dec 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:104.78:394.22:010.32:420.26:474:10Waning Crescent1Tue
2Wed8:554.99:304.22:460.33:350.06:484:10Waning Crescent2Wed
3Thu9:375.110:174.23:310.44:24-0.16:494:10Waning Crescent3Thu
4Fri10:175.210:594.34:150.45:10-0.26:504:09New Moon4Fri
5Sat10:535.411:394.34:570.55:55-0.26:514:09New Moon5Sat
6Sun11:295.55:390.56:38-0.26:524:09New Moon6Sun
7Mon12:164.412:055.76:200.57:20-0.26:534:09New Moon7Mon
8Tue12:534.412:435.87:030.48:03-0.26:544:09Waxing Crescent8Tue
9Wed1:334.51:265.87:480.48:46-0.26:554:09Waxing Crescent9Wed
10Thu2:154.62:145.78:350.39:30-0.26:554:09Waxing Crescent10Thu
11Fri3:024.73:065.69:260.210:15-0.26:564:09Waxing Crescent11Fri
12Sat3:524.84:025.410:220.211:04-0.26:574:09First Quarter12Sat
13Sun4:465.05:035.211:240.111:56-0.26:584:09First Quarter13Sun
14Mon5:445.26:085.012:300.06:594:10First Quarter14Mon
15Tue6:435.57:134.812:50-0.11:35-0.16:594:10Waxing Gibbous15Tue
16Wed7:415.78:174.81:46-0.12:39-0.37:004:10Waxing Gibbous16Wed
17Thu8:386.09:184.82:42-0.13:40-0.47:014:10Waxing Gibbous17Thu
18Fri9:336.210:154.93:380.04:39-0.67:014:11Waxing Gibbous18Fri
19Sat10:276.311:085.04:340.05:33-0.67:024:11Full Moon19Sat
20Sun11:186.311:585.05:270.06:25-0.67:024:12Full Moon20Sun
21Mon12:066.36:180.17:14-0.67:034:12Full Moon21Mon
22Tue12:475.012:546.17:080.18:01-0.57:034:13Waning Gibbous22Tue
23Wed1:364.91:435.87:570.28:45-0.47:044:13Waning Gibbous23Wed
24Thu2:254.82:325.58:440.29:28-0.37:044:14Waning Gibbous24Thu
25Fri3:134.73:215.19:320.310:09-0.17:054:14Waning Gibbous25Fri
26Sat4:014.74:134.810:210.310:510.07:054:15Third Quarter26Sat
27Sun4:494.65:074.411:130.411:340.17:054:16Third Quarter27Sun
28Mon5:394.56:044.112:090.37:064:16Third Quarter28Mon
29Tue6:294.57:023.912:190.21:070.37:064:17Third Quarter29Tue
30Wed7:194.67:583.81:070.32:030.27:064:18Waning Crescent30Wed
31Thu8:074.78:533.81:550.42:590.17:064:19Waning Crescent31Thu
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 5:30 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 Chatham, MA?

Chatham, MA is currently in a transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 (22% illuminated). This places Chatham, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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