41.6885’ N, 69.9511’ W

Chatham, MA

77°
H 79°
L 65°
SW
6mph
Low tide
4:19 pm

Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Monday, August 24, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 4h 08m at 4:19 pm (0.4 ft)
Next high tide : 10:32 pm (5.0 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 - Jan 1922

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:524.81:545.38:100.28:49-0.37:074:19Waxing Crescent1Sun
2Mon2:344.72:355.18:510.29:26-0.27:074:20Waxing Crescent2Mon
3Tue3:164.63:184.89:330.210:04-0.27:074:21Waxing Crescent3Tue
4Wed3:584.54:044.510:180.210:43-0.17:074:22First Quarter4Wed
5Thu4:414.44:534.311:070.211:250.07:074:23First Quarter5Thu
6Fri5:274.45:474.112:020.27:074:24First Quarter6Fri
7Sat6:154.56:444.012:120.01:000.27:074:25First Quarter7Sat
8Sun7:054.77:414.01:030.11:570.17:064:26Waxing Gibbous8Sun
9Mon7:554.98:364.11:550.12:55-0.17:064:27Waxing Gibbous9Mon
10Tue8:465.39:294.42:490.13:51-0.27:064:28Waxing Gibbous10Tue
11Wed9:375.610:194.63:430.04:44-0.47:064:29Waxing Gibbous11Wed
12Thu10:266.011:074.94:37-0.15:35-0.67:054:30Full Moon12Thu
13Fri11:156.311:545.25:30-0.26:24-0.77:054:31Full Moon13Fri
14Sat12:046.56:23-0.37:13-0.87:054:32Full Moon14Sat
15Sun12:425.512:556.57:16-0.48:02-0.97:044:33Waning Gibbous15Sun
16Mon1:325.61:486.48:11-0.58:51-0.97:044:34Waning Gibbous16Mon
17Tue2:255.72:436.19:06-0.59:40-0.87:034:36Waning Gibbous17Tue
18Wed3:195.73:415.810:02-0.410:31-0.77:034:37Third Quarter18Wed
19Thu4:165.74:425.411:02-0.411:25-0.57:024:38Third Quarter19Thu
20Fri5:155.65:465.012:05-0.37:024:39Third Quarter20Fri
21Sat6:165.56:514.812:22-0.41:08-0.37:014:40Third Quarter21Sat
22Sun7:185.47:544.61:19-0.32:11-0.47:004:42Waning Crescent22Sun
23Mon8:165.48:544.62:16-0.23:10-0.47:004:43Waning Crescent23Mon
24Tue9:125.49:494.63:12-0.14:06-0.56:594:44Waning Crescent24Tue
25Wed10:045.510:404.74:06-0.14:58-0.66:584:45Waning Crescent25Wed
26Thu10:515.511:254.84:55-0.15:44-0.66:574:46New Moon26Thu
27Fri11:345.55:41-0.16:26-0.56:574:48New Moon27Fri
28Sat12:074.812:135.56:240.07:05-0.56:564:49New Moon28Sat
29Sun12:464.812:525.47:050.07:42-0.46:554:50New Moon29Sun
30Mon1:244.81:305.27:450.08:17-0.36:544:52Waxing Crescent30Mon
31Tue2:014.82:085.08:250.08:51-0.36:534:53Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447435)

Common Questions About Chatham, MA Tides

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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