Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 2h 00m at 4:52 pm (0.4 ft)
Next high tide : 11:02 pm (5.1 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - May 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:595.36:21-0.56:24-0.15:357:38Full Moon1Sat
2Sun12:096.412:505.47:16-0.67:15-0.15:347:39Full Moon2Sun
3Mon12:586.61:425.38:10-0.78:060.05:337:40Full Moon3Mon
4Tue1:496.72:365.29:05-0.79:000.05:317:41Waning Gibbous4Tue
5Wed2:426.53:335.110:00-0.69:560.15:307:42Waning Gibbous5Wed
6Thu3:406.24:334.910:55-0.510:530.15:297:43Waning Gibbous6Thu
7Fri4:415.95:354.811:51-0.411:540.25:287:44Third Quarter7Fri
8Sat5:465.56:384.812:49-0.35:277:45Third Quarter8Sat
9Sun6:525.27:404.812:570.21:46-0.25:257:46Third Quarter9Sun
10Mon7:575.08:384.92:010.22:41-0.25:247:47Third Quarter10Mon
11Tue8:584.89:315.03:030.13:32-0.15:237:48Waning Crescent11Tue
12Wed9:554.710:205.24:010.04:200.05:227:49Waning Crescent12Wed
13Thu10:474.611:055.34:56-0.25:060.15:217:50Waning Crescent13Thu
14Fri11:354.611:465.45:46-0.35:480.25:207:51Waning Crescent14Fri
15Sat12:194.66:32-0.36:280.35:197:52New Moon15Sat
16Sun12:235.51:004.57:15-0.37:060.45:187:53New Moon16Sun
17Mon12:595.51:394.57:56-0.37:430.55:177:54New Moon17Mon
18Tue1:335.52:184.48:36-0.28:200.55:167:55New Moon18Tue
19Wed2:075.42:574.39:15-0.28:580.55:167:56Waxing Crescent19Wed
20Thu2:435.33:354.29:54-0.19:370.55:157:57Waxing Crescent20Thu
21Fri3:225.34:154.210:33-0.110:190.55:147:58Waxing Crescent21Fri
22Sat4:045.24:564.211:14-0.111:040.45:137:59Waxing Crescent22Sat
23Sun4:515.15:414.311:57-0.111:560.45:128:00First Quarter23Sun
24Mon5:435.06:304.512:42-0.15:128:01First Quarter24Mon
25Tue6:404.97:224.812:540.31:31-0.15:118:02First Quarter25Tue
26Wed7:414.88:145.11:570.22:210.05:108:03Waxing Gibbous26Wed
27Thu8:424.89:075.53:000.03:120.05:108:04Waxing Gibbous27Thu
28Fri9:434.810:005.94:03-0.14:050.05:098:04Waxing Gibbous28Fri
29Sat10:414.910:546.35:05-0.35:010.05:098:05Waxing Gibbous29Sat
30Sun11:385.011:476.56:04-0.55:570.05:088:06Full Moon30Sun
31Mon12:325.17:01-0.66:520.05:088:07Full Moon31Mon
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 7:57 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 spring phase. Tonight's moon is 92% 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 near their weekly maximum.

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 Gibbous (92% illuminated). This places Chatham, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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