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 6m at 11:41 am (-0.5 ft)
Next high tide : 5:31 pm (5.1 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 - May 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:494.96:00-0.36:11-0.15:357:37Full Moon1Mon
2Tue12:055.412:324.96:44-0.36:500.05:347:39Full Moon2Tue
3Wed12:425.41:124.87:26-0.37:280.15:337:40Full Moon3Wed
4Thu1:165.41:504.78:07-0.38:040.25:317:41Full Moon4Thu
5Fri1:495.42:284.68:46-0.38:410.25:307:42Waning Gibbous5Fri
6Sat2:225.43:074.59:25-0.39:170.35:297:43Waning Gibbous6Sat
7Sun2:575.33:454.410:05-0.29:560.35:287:44Waning Gibbous7Sun
8Mon3:345.34:264.410:45-0.210:370.35:277:45Waning Gibbous8Mon
9Tue4:165.25:094.311:27-0.211:230.35:267:46Third Quarter9Tue
10Wed5:045.15:584.412:14-0.15:247:47Third Quarter10Wed
11Thu5:595.16:514.512:160.31:05-0.15:237:48Third Quarter11Thu
12Fri6:595.07:464.81:170.21:59-0.15:227:49Third Quarter12Fri
13Sat8:025.18:415.12:200.12:53-0.25:217:50Waning Crescent13Sat
14Sun9:035.29:365.63:23-0.13:48-0.25:207:51Waning Crescent14Sun
15Mon10:035.310:296.04:25-0.34:43-0.25:197:52Waning Crescent15Mon
16Tue11:015.511:226.45:25-0.55:37-0.35:187:53New Moon16Tue
17Wed11:565.66:22-0.76:30-0.35:177:54New Moon17Wed
18Thu12:136.612:505.77:18-0.87:23-0.35:167:55New Moon18Thu
19Fri1:046.81:435.78:12-0.88:16-0.25:167:56New Moon19Fri
20Sat1:556.72:385.69:06-0.89:10-0.25:157:57Waxing Crescent20Sat
21Sun2:506.53:355.49:59-0.810:04-0.15:147:58Waxing Crescent21Sun
22Mon3:466.24:335.310:51-0.710:590.05:137:59Waxing Crescent22Mon
23Tue4:445.95:325.111:45-0.611:560.15:128:00First Quarter23Tue
24Wed5:455.56:315.012:39-0.45:128:01First Quarter24Wed
25Thu6:475.17:304.912:550.11:33-0.35:118:02First Quarter25Thu
26Fri7:484.98:265.01:550.12:26-0.25:108:03First Quarter26Fri
27Sat8:474.79:185.02:530.03:16-0.25:108:03Waxing Gibbous27Sat
28Sun9:424.610:075.13:49-0.14:04-0.15:098:04Waxing Gibbous28Sun
29Mon10:344.610:525.24:42-0.24:500.05:098:05Waxing Gibbous29Mon
30Tue11:224.611:345.35:32-0.25:340.15:088:06Waxing Gibbous30Tue
31Wed12:064.66:18-0.36:150.15:078:07Full Moon31Wed
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 2:36 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 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