Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Chatham, MA.
Next low tide : in 6h 45m at 10:16 am (-0.2 ft)
Next high tide : 3:57 pm (4.5 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Mar 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:305.26:114.512:22-0.26:135:30Third Quarter1Sun
2Mon6:295.07:114.312:270.11:21-0.26:125:31Third Quarter2Mon
3Tue7:284.88:094.21:230.22:18-0.26:105:32Waning Crescent3Tue
4Wed8:244.89:044.32:170.23:12-0.26:085:33Waning Crescent4Wed
5Thu9:174.99:544.43:110.14:02-0.36:075:35Waning Crescent5Thu
6Fri10:064.910:394.54:010.14:47-0.36:055:36Waning Crescent6Fri
7Sat10:495.011:184.74:490.05:28-0.36:035:37New Moon7Sat
8Sun12:285.16:33-0.17:06-0.37:026:38New Moon8Sun
9Mon12:544.81:035.27:15-0.17:43-0.37:006:39New Moon9Mon
10Tue1:274.91:385.27:55-0.28:18-0.26:596:40New Moon10Tue
11Wed1:575.12:135.18:36-0.28:53-0.26:576:41Waxing Crescent11Wed
12Thu2:295.22:505.09:16-0.29:28-0.26:556:43Waxing Crescent12Thu
13Fri3:035.33:304.99:58-0.210:04-0.16:536:44Waxing Crescent13Fri
14Sat3:425.44:154.810:42-0.210:44-0.16:526:45Waxing Crescent14Sat
15Sun4:265.45:064.611:32-0.211:300.06:506:46First Quarter15Sun
16Mon5:175.46:034.512:30-0.16:486:47First Quarter16Mon
17Tue6:165.47:074.412:260.11:34-0.16:476:48First Quarter17Tue
18Wed7:225.48:134.51:310.12:38-0.16:456:49First Quarter18Wed
19Thu8:305.59:164.82:390.13:40-0.26:436:50Waxing Gibbous19Thu
20Fri9:355.710:175.13:460.04:40-0.46:426:52Waxing Gibbous20Fri
21Sat10:375.911:135.54:50-0.25:35-0.56:406:53Waxing Gibbous21Sat
22Sun11:356.15:50-0.46:27-0.66:386:54Full Moon22Sun
23Mon12:055.812:286.26:46-0.67:16-0.76:376:55Full Moon23Mon
24Tue12:546.11:196.27:39-0.78:04-0.66:356:56Full Moon24Tue
25Wed1:426.22:096.08:31-0.78:50-0.56:336:57Waning Gibbous25Wed
26Thu2:296.13:015.79:22-0.79:36-0.46:316:58Waning Gibbous26Thu
27Fri3:176.03:535.410:12-0.610:21-0.26:306:59Waning Gibbous27Fri
28Sat4:075.74:465.011:02-0.411:070.06:287:00Waning Gibbous28Sat
29Sun4:575.45:414.711:54-0.311:560.26:267:02Third Quarter29Sun
30Mon5:515.16:394.412:48-0.16:257:03Third Quarter30Mon
31Tue6:494.87:384.212:490.31:43-0.16:237:04Third Quarter31Tue
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 1:06 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 81% 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 Waning Gibbous (81% 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