Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Chatham, MA.
Next low tide (tomorrow) : 7:57 am (-0.2 ft)
Next high tide (tomorrow) : in 1h 57m at 1:00 am (5.4 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:31 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - Jul 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:174.07:354.81:320.31:310.15:098:18First Quarter1Sun
2Mon8:133.98:255.02:300.22:210.25:108:18Waxing Gibbous2Mon
3Tue9:094.09:155.33:280.13:130.35:108:17Waxing Gibbous3Tue
4Wed10:044.110:085.64:260.04:080.35:118:17Waxing Gibbous4Wed
5Thu10:574.311:005.95:22-0.15:050.25:128:17Waxing Gibbous5Thu
6Fri11:474.611:526.26:16-0.36:010.15:128:16Full Moon6Fri
7Sat12:364.87:07-0.46:570.05:138:16Full Moon7Sat
8Sun12:436.41:255.17:57-0.67:52-0.15:148:16Full Moon8Sun
9Mon1:346.52:155.38:46-0.68:48-0.25:148:15Waning Gibbous9Mon
10Tue2:276.43:085.59:34-0.79:44-0.35:158:15Waning Gibbous10Tue
11Wed3:236.24:025.710:22-0.710:41-0.35:168:14Waning Gibbous11Wed
12Thu4:205.94:575.711:11-0.611:39-0.35:178:14Third Quarter12Thu
13Fri5:195.55:545.712:02-0.55:178:13Third Quarter13Fri
14Sat6:215.16:535.712:40-0.312:56-0.35:188:13Third Quarter14Sat
15Sun7:254.87:525.61:43-0.31:51-0.25:198:12Third Quarter15Sun
16Mon8:274.68:505.62:45-0.32:470.05:208:11Waning Crescent16Mon
17Tue9:274.59:465.53:45-0.33:430.15:218:11Waning Crescent17Tue
18Wed10:244.510:405.64:43-0.34:370.15:228:10Waning Crescent18Wed
19Thu11:174.511:295.65:37-0.45:290.25:228:09Waning Crescent19Thu
20Fri12:054.66:25-0.46:170.25:238:08New Moon20Fri
21Sat12:145.612:484.67:09-0.37:020.25:248:08New Moon21Sat
22Sun12:555.51:294.77:49-0.37:440.35:258:07New Moon22Sun
23Mon1:345.42:084.78:26-0.28:250.35:268:06New Moon23Mon
24Tue2:135.32:454.79:02-0.29:060.25:278:05Waxing Crescent24Tue
25Wed2:515.13:214.79:36-0.19:460.25:288:04Waxing Crescent25Wed
26Thu3:304.93:564.710:09-0.110:270.25:298:03Waxing Crescent26Thu
27Fri4:104.74:324.810:420.011:110.25:308:02Waxing Crescent27Fri
28Sat4:534.45:114.811:180.011:590.25:318:01First Quarter28Sat
29Sun5:404.25:544.911:580.15:328:00First Quarter29Sun
30Mon6:344.06:455.012:550.212:450.25:337:59First Quarter30Mon
31Tue7:323.97:415.11:550.21:390.25:347:58First 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 4:28 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 100% 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 Full Moon (100% 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