Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 4h 22m at 11:57 pm (0.1 ft)
Next high tide (tomorrow) : 5:47 am (5.3 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Dec 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:005.34:145.710:280.011:12-0.46:474:10Third Quarter1Fri
2Sat5:015.25:185.311:290.16:484:10Third Quarter2Sat
3Sun6:025.16:225.012:07-0.312:310.16:494:09Third Quarter3Sun
4Mon7:015.17:244.81:02-0.21:310.06:504:09Waning Crescent4Mon
5Tue7:555.18:214.71:55-0.22:29-0.16:514:09Waning Crescent5Tue
6Wed8:475.29:154.72:45-0.13:24-0.26:524:09Waning Crescent6Wed
7Thu9:345.310:054.63:33-0.14:16-0.36:534:09Waning Crescent7Thu
8Fri10:185.410:504.74:180.05:03-0.46:544:09Waning Crescent8Fri
9Sat10:585.411:324.75:010.15:46-0.46:554:09New Moon9Sat
10Sun11:355.55:410.26:27-0.46:554:09New Moon10Sun
11Mon12:124.612:095.56:200.27:07-0.46:564:09New Moon11Mon
12Tue12:494.612:435.46:580.37:46-0.36:574:09New Moon12Tue
13Wed1:264.61:175.47:370.38:24-0.36:584:09Waxing Crescent13Wed
14Thu2:034.51:535.38:170.39:02-0.36:594:09Waxing Crescent14Thu
15Fri2:404.52:335.38:580.39:41-0.26:594:10Waxing Crescent15Fri
16Sat3:204.53:185.29:420.210:21-0.27:004:10Waxing Crescent16Sat
17Sun4:034.64:085.010:310.211:06-0.27:014:10First Quarter17Sun
18Mon4:514.85:054.911:280.211:56-0.27:014:11First Quarter18Mon
19Tue5:455.06:074.812:300.17:024:11First Quarter19Tue
20Wed6:415.27:104.812:50-0.21:34-0.17:024:12Waxing Gibbous20Wed
21Thu7:385.68:124.91:46-0.22:37-0.27:034:12Waxing Gibbous21Thu
22Fri8:355.99:135.12:43-0.23:38-0.47:034:13Waxing Gibbous22Fri
23Sat9:316.310:115.33:41-0.24:37-0.67:044:13Waxing Gibbous23Sat
24Sun10:266.511:055.44:38-0.35:33-0.87:044:14Full Moon24Sun
25Mon11:196.711:585.65:34-0.36:27-0.97:054:14Full Moon25Mon
26Tue12:116.76:29-0.37:20-0.97:054:15Full Moon26Tue
27Wed12:515.61:046.67:23-0.38:11-0.87:054:16Waning Gibbous27Wed
28Thu1:455.61:586.38:17-0.39:01-0.87:064:16Waning Gibbous28Thu
29Fri2:395.52:546.09:11-0.29:50-0.67:064:17Waning Gibbous29Fri
30Sat3:355.33:515.510:06-0.110:40-0.57:064:18Third Quarter30Sat
31Sun4:305.24:495.111:020.011:34-0.47:064:19Third Quarter31Sun
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 2:52 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 37% 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 First Quarter (37% 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