Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Chatham, MA.
Next low tide (tomorrow) : in 5h 22m at 3:50 am (0.0 ft)
Next high tide (tomorrow) : 9:21 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 - Jan 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:365.32:496.19:05-0.29:48-0.77:064:19Waxing Crescent1Tue
2Wed3:315.33:485.710:02-0.210:38-0.57:074:20First Quarter2Wed
3Thu4:285.44:485.211:02-0.211:30-0.47:074:21First Quarter3Thu
4Fri5:255.35:514.812:04-0.17:074:22First Quarter4Fri
5Sat6:235.36:544.512:23-0.21:07-0.27:074:22First Quarter5Sat
6Sun7:205.37:544.31:160.02:08-0.27:074:23Waxing Gibbous6Sun
7Mon8:145.38:524.22:090.13:06-0.37:064:24Waxing Gibbous7Mon
8Tue9:065.39:464.23:010.24:01-0.37:064:25Waxing Gibbous8Tue
9Wed9:565.310:354.33:510.34:51-0.47:064:26Waxing Gibbous9Wed
10Thu10:415.311:204.34:390.35:37-0.47:064:27Full Moon10Thu
11Fri11:235.45:230.36:18-0.37:064:28Full Moon11Fri
12Sat12:004.412:015.46:050.36:57-0.37:054:30Full Moon12Sat
13Sun12:384.412:375.36:450.37:33-0.27:054:31Full Moon13Sun
14Mon1:154.41:135.27:250.38:08-0.27:054:32Waning Gibbous14Mon
15Tue1:504.41:485.18:040.38:42-0.27:044:33Waning Gibbous15Tue
16Wed2:234.52:264.98:440.29:15-0.27:044:34Waning Gibbous16Wed
17Thu2:574.63:064.79:250.29:48-0.17:034:35Waning Gibbous17Thu
18Fri3:344.73:504.510:100.210:240.07:034:36Third Quarter18Fri
19Sat4:144.84:414.311:020.211:050.17:024:38Third Quarter19Sat
20Sun5:014.95:394.012:020.27:024:39Third Quarter20Sun
21Mon5:565.16:433.91:080.17:014:40Third Quarter21Mon
22Tue6:555.37:484.012:530.22:140.07:014:41Waning Crescent22Tue
23Wed7:575.58:514.11:550.33:18-0.17:004:42Waning Crescent23Wed
24Thu9:005.89:514.43:000.24:19-0.36:594:44Waning Crescent24Thu
25Fri10:006.110:474.74:040.15:15-0.56:584:45New Moon25Fri
26Sat10:576.311:395.15:06-0.16:08-0.76:584:46New Moon26Sat
27Sun11:516.56:03-0.36:58-0.86:574:47New Moon27Sun
28Mon12:305.312:446.46:59-0.47:46-0.86:564:49Waxing Crescent28Mon
29Tue1:215.51:376.27:54-0.58:33-0.86:554:50Waxing Crescent29Tue
30Wed2:125.62:315.98:49-0.59:19-0.76:544:51Waxing Crescent30Wed
31Thu3:045.73:265.59:43-0.410:05-0.56:534:52Waxing 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 6:35 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