Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Chatham, MA.
Next low tide (tomorrow) : 5:56 am (-0.1 ft)
Next high tide : in 4h 51m at 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 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:565.39:345.33:080.03:46-0.25:367:37Waning Crescent1Fri
2Sat9:585.310:285.64:11-0.24:39-0.35:357:38Waning Crescent2Sat
3Sun10:565.311:186.05:12-0.45:29-0.25:337:39Waning Crescent3Sun
4Mon11:495.36:08-0.56:17-0.15:327:40New Moon4Mon
5Tue12:056.212:395.37:00-0.67:030.05:317:41New Moon5Tue
6Wed12:506.21:275.17:50-0.67:480.15:307:42New Moon6Wed
7Thu1:336.12:155.08:38-0.58:320.35:287:43Waxing Crescent7Thu
8Fri2:186.03:034.89:25-0.49:160.45:277:44Waxing Crescent8Fri
9Sat3:035.73:524.610:11-0.310:000.55:267:45Waxing Crescent9Sat
10Sun3:515.44:424.410:56-0.110:450.65:257:46Waxing Crescent10Sun
11Mon4:405.15:344.211:420.011:330.65:247:47First Quarter11Mon
12Tue5:334.86:264.112:290.15:237:49First Quarter12Tue
13Wed6:294.67:194.112:260.61:170.15:227:50First Quarter13Wed
14Thu7:274.48:104.21:240.62:050.25:217:51First Quarter14Thu
15Fri8:234.38:574.42:210.52:510.25:207:52Waxing Gibbous15Fri
16Sat9:164.29:414.63:170.43:360.25:197:53Waxing Gibbous16Sat
17Sun10:074.210:224.94:120.24:200.35:187:54Waxing Gibbous17Sun
18Mon10:554.311:015.25:040.15:040.35:177:55Waxing Gibbous18Mon
19Tue11:394.411:385.55:55-0.15:470.45:167:56Full Moon19Tue
20Wed12:224.56:43-0.26:300.45:157:56Full Moon20Wed
21Thu12:175.81:044.57:30-0.37:150.45:147:57Full Moon21Thu
22Fri12:586.01:474.68:18-0.38:020.45:137:58Full Moon22Fri
23Sat1:436.12:344.69:07-0.48:510.35:137:59Waning Gibbous23Sat
24Sun2:326.23:254.69:57-0.49:440.35:128:00Waning Gibbous24Sun
25Mon3:266.14:204.710:47-0.410:400.25:118:01Waning Gibbous25Mon
26Tue4:245.95:174.811:39-0.311:400.25:108:02Third Quarter26Tue
27Wed5:265.76:174.912:34-0.35:108:03Third Quarter27Wed
28Thu6:315.47:185.112:450.11:29-0.35:098:04Third Quarter28Thu
29Fri7:375.28:165.31:510.02:23-0.35:098:05Third Quarter29Fri
30Sat8:405.09:125.62:55-0.13:17-0.25:088:05Waning Crescent30Sat
31Sun9:414.910:055.83:57-0.34:09-0.15:088:06Waning Crescent31Sun
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 2:29 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 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