Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 1h 32m at 10:50 am (-0.6 ft)
Next high tide : 4:33 pm (5.1 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Aug 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:184.86:49-0.46:380.05:347:58Full Moon1Tue
2Wed12:286.41:095.17:40-0.57:35-0.15:357:57Full Moon2Wed
3Thu1:216.52:005.38:30-0.68:32-0.25:367:55Waning Gibbous3Thu
4Fri2:156.42:535.59:19-0.69:29-0.35:377:54Waning Gibbous4Fri
5Sat3:116.23:475.610:06-0.610:25-0.35:387:53Waning Gibbous5Sat
6Sun4:085.84:415.710:54-0.511:22-0.35:397:52Third Quarter6Sun
7Mon5:065.45:365.611:43-0.35:407:51Third Quarter7Mon
8Tue6:065.06:345.512:22-0.212:35-0.15:417:49Third Quarter8Tue
9Wed7:094.77:325.41:24-0.21:300.05:427:48Third Quarter9Wed
10Thu8:124.48:315.42:26-0.22:250.25:437:47Waning Crescent10Thu
11Fri9:114.39:275.33:26-0.23:200.35:447:45Waning Crescent11Fri
12Sat10:084.310:215.34:23-0.24:150.35:457:44Waning Crescent12Sat
13Sun11:004.311:125.45:17-0.25:060.35:467:43Waning Crescent13Sun
14Mon11:484.411:575.46:05-0.25:540.35:477:41New Moon14Mon
15Tue12:304.56:48-0.26:390.35:487:40New Moon15Tue
16Wed12:375.41:094.67:27-0.27:210.35:497:38New Moon16Wed
17Thu1:155.41:454.78:03-0.18:010.35:507:37New Moon17Thu
18Fri1:515.32:194.78:37-0.18:410.35:517:35Waxing Crescent18Fri
19Sat2:275.22:524.89:100.09:200.25:527:34Waxing Crescent19Sat
20Sun3:035.03:244.89:420.010:000.25:537:33Waxing Crescent20Sun
21Mon3:414.83:574.910:130.110:420.25:547:31Waxing Crescent21Mon
22Tue4:224.54:345.010:470.211:280.25:557:29First Quarter22Tue
23Wed5:084.35:175.111:250.25:567:28First Quarter23Wed
24Thu6:014.16:095.212:220.312:110.35:577:26First Quarter24Thu
25Fri7:014.07:085.21:250.31:070.45:587:25First Quarter25Fri
26Sat8:054.08:125.42:300.22:100.45:597:23Waxing Gibbous26Sat
27Sun9:084.19:175.73:340.13:150.46:007:22Waxing Gibbous27Sun
28Mon10:084.410:205.94:350.04:220.26:017:20Waxing Gibbous28Mon
29Tue11:054.811:196.25:32-0.25:250.06:027:18Full Moon29Tue
30Wed11:585.26:25-0.46:25-0.26:037:17Full Moon30Wed
31Thu12:146.412:485.57:15-0.57:22-0.36:047:15Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447435)

Common Questions About Chatham, MA Tides

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

Slack tide in Chatham, MA is approximately 1:41 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 27% 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 Waxing Crescent (27% 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