41.6885’ N, 69.9511’ W

Chatham, MA

71°
H 79°
L 66°
SW
5mph
High tide
10:26 am

Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Chatham, MA.
Next low tide : 4:19 pm (0.4 ft)
Next high tide : in 4h 27m at 10:26 am (4.0 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Gibbous (88% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Aug 1922

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:165.07:435.71:36-0.31:47-0.35:337:58First Quarter1Tue
2Wed8:204.88:435.72:39-0.32:45-0.25:347:57Waxing Gibbous2Wed
3Thu9:214.89:425.73:40-0.33:42-0.15:357:56Waxing Gibbous3Thu
4Fri10:194.810:365.74:38-0.44:38-0.15:367:55Waxing Gibbous4Fri
5Sat11:134.811:275.75:32-0.45:310.05:377:54Waxing Gibbous5Sat
6Sun12:014.96:22-0.56:210.05:387:52Full Moon6Sun
7Mon12:135.712:465.07:07-0.47:070.05:397:51Full Moon7Mon
8Tue12:565.61:285.07:48-0.37:500.15:407:50Full Moon8Tue
9Wed1:365.52:085.08:27-0.38:320.15:417:49Full Moon9Wed
10Thu2:165.42:474.99:04-0.29:130.15:427:47Waning Gibbous10Thu
11Fri2:575.23:254.99:39-0.19:540.15:437:46Waning Gibbous11Fri
12Sat3:374.94:034.810:14-0.110:350.15:447:45Waning Gibbous12Sat
13Sun4:194.74:414.810:490.011:190.15:457:43Waning Gibbous13Sun
14Mon5:034.45:214.711:260.05:467:42Third Quarter14Mon
15Tue5:514.26:064.712:080.212:090.15:477:41Third Quarter15Tue
16Wed6:444.16:574.81:020.212:580.25:487:39Third Quarter16Wed
17Thu7:414.07:525.01:590.21:520.25:497:38Third Quarter17Thu
18Fri8:374.18:485.22:570.12:490.25:507:36Waning Crescent18Fri
19Sat9:324.39:435.53:540.03:470.15:517:35Waning Crescent19Sat
20Sun10:264.610:385.84:50-0.24:460.05:527:33Waning Crescent20Sun
21Mon11:165.011:316.15:43-0.35:43-0.15:537:32New Moon21Mon
22Tue12:055.46:33-0.56:39-0.35:547:30New Moon22Tue
23Wed12:226.412:535.77:22-0.67:33-0.45:557:29New Moon23Wed
24Thu1:126.51:426.08:10-0.68:28-0.55:567:27Waxing Crescent24Thu
25Fri2:046.42:326.28:59-0.69:23-0.55:577:26Waxing Crescent25Fri
26Sat2:586.23:256.29:48-0.610:18-0.55:587:24Waxing Crescent26Sat
27Sun3:555.94:206.110:38-0.511:15-0.45:597:22Waxing Crescent27Sun
28Mon4:545.65:185.911:30-0.46:007:21First Quarter28Mon
29Tue5:555.26:195.712:15-0.312:26-0.26:017:19First Quarter29Tue
30Wed7:004.97:225.61:17-0.31:25-0.16:027:18First Quarter30Wed
31Thu8:034.88:255.52:19-0.22:240.06:037:16Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447435)

Common Questions About Chatham, MA Tides

Collapse All
Is this week a spring tide or neap tide in Chatham, MA?

Chatham, MA is currently in a spring phase. Tonight's moon is 88% 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 (88% 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