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 1h 18m at 2:30 pm (0.2 ft)
Next high tide : 8:32 pm (5.7 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 - Nov 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:556.311:285.55:07-0.15:49-0.66:124:34Full Moon1Sat
2Sun11:406.45:540.06:40-0.66:134:33Full Moon2Sun
3Mon12:175.412:256.36:400.17:29-0.56:144:32Full Moon3Mon
4Tue1:055.21:106.27:250.38:17-0.46:154:31Waning Gibbous4Tue
5Wed1:545.01:575.98:110.49:05-0.26:174:29Waning Gibbous5Wed
6Thu2:454.72:465.68:560.59:520.06:184:28Waning Gibbous6Thu
7Fri3:364.53:385.29:430.610:400.16:194:27Third Quarter7Fri
8Sat4:304.34:334.910:330.711:290.26:204:26Third Quarter8Sat
9Sun5:254.25:314.711:280.76:214:25Third Quarter9Sun
10Mon6:194.26:304.512:190.212:250.66:234:24Third Quarter10Mon
11Tue7:114.37:264.41:070.21:220.56:244:23Third Quarter11Tue
12Wed7:594.58:194.41:530.22:170.46:254:22Waning Crescent12Wed
13Thu8:434.79:084.42:370.23:100.26:264:21Waning Crescent13Thu
14Fri9:235.09:544.43:210.34:010.16:284:20Waning Crescent14Fri
15Sat10:015.210:374.54:030.34:49-0.16:294:19New Moon15Sat
16Sun10:375.511:184.64:440.45:36-0.26:304:18New Moon16Sun
17Mon11:125.811:574.65:250.46:21-0.26:314:18New Moon17Mon
18Tue11:506.06:070.47:07-0.26:324:17New Moon18Tue
19Wed12:384.712:326.16:510.47:55-0.26:344:16Waxing Crescent19Wed
20Thu1:224.71:186.17:380.48:43-0.26:354:15Waxing Crescent20Thu
21Fri2:104.62:106.08:290.49:34-0.26:364:15Waxing Crescent21Fri
22Sat3:034.63:075.99:250.310:26-0.16:374:14Waxing Crescent22Sat
23Sun4:004.74:085.610:250.311:21-0.16:384:13First Quarter23Sun
24Mon5:014.85:145.411:300.36:394:13First Quarter24Mon
25Tue6:035.06:235.212:17-0.112:380.26:414:12First Quarter25Tue
26Wed7:045.27:295.11:13-0.11:440.06:424:12Waxing Gibbous26Wed
27Thu8:015.58:315.02:07-0.12:46-0.26:434:11Waxing Gibbous27Thu
28Fri8:555.89:295.03:01-0.13:46-0.46:444:11Waxing Gibbous28Fri
29Sat9:476.010:235.03:53-0.14:43-0.56:454:11Full Moon29Sat
30Sun10:356.111:135.04:430.05:35-0.66:464:10Full Moon30Sun
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 5:31 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 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