Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Chatham, MA.
Next low tide : 10:16 am (-0.2 ft)
Next high tide : in 1h 53m at 3:14 am (5.3 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 - Jun 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:485.29:225.53:03-0.13:30-0.35:078:07Waxing Gibbous1Fri
2Sat9:495.210:165.74:05-0.24:23-0.35:078:08Waxing Gibbous2Sat
3Sun10:475.111:065.95:04-0.45:14-0.25:068:09Waxing Gibbous3Sun
4Mon11:405.111:536.05:59-0.56:03-0.15:068:10Full Moon4Mon
5Tue12:295.16:51-0.66:500.15:058:10Full Moon5Tue
6Wed12:376.01:165.07:39-0.67:340.25:058:11Full Moon6Wed
7Thu1:206.02:024.98:25-0.58:170.35:058:11Full Moon7Thu
8Fri2:025.82:484.79:09-0.48:590.45:058:12Waning Gibbous8Fri
9Sat2:455.63:344.69:51-0.39:410.45:058:13Waning Gibbous9Sat
10Sun3:295.44:204.410:32-0.210:240.55:048:13Waning Gibbous10Sun
11Mon4:145.15:064.311:13-0.111:080.55:048:14Waning Gibbous11Mon
12Tue5:014.95:534.311:54-0.111:570.55:048:14Third Quarter12Tue
13Wed5:514.66:414.312:38-0.15:048:15Third Quarter13Wed
14Thu6:444.47:294.312:500.41:230.05:048:15Third Quarter14Thu
15Fri7:394.38:154.51:470.42:090.05:048:16Third Quarter15Fri
16Sat8:334.29:004.72:430.32:560.15:048:16Waning Crescent16Sat
17Sun9:264.29:445.03:390.13:420.15:048:16Waning Crescent17Sun
18Mon10:174.310:285.44:340.04:310.25:048:17Waning Crescent18Mon
19Tue11:074.511:125.75:28-0.25:200.25:058:17Waning Crescent19Tue
20Wed11:554.611:576.16:21-0.36:090.25:058:17New Moon20Wed
21Thu12:424.87:11-0.47:000.25:058:17New Moon21Thu
22Fri12:446.31:294.98:02-0.57:520.15:058:18New Moon22Fri
23Sat1:336.42:205.08:53-0.68:460.15:058:18Waxing Crescent23Sat
24Sun2:256.43:135.19:43-0.69:410.05:068:18Waxing Crescent24Sun
25Mon3:216.34:095.110:34-0.610:380.05:068:18Waxing Crescent25Mon
26Tue4:196.05:065.211:25-0.611:370.05:068:18First Quarter26Tue
27Wed5:205.86:055.312:19-0.55:078:18First Quarter27Wed
28Thu6:245.47:055.312:40-0.11:13-0.55:078:18First Quarter28Thu
29Fri7:295.28:045.51:44-0.12:08-0.45:088:18First Quarter29Fri
30Sat8:325.09:015.62:47-0.23:02-0.35:088:18Waxing Gibbous30Sat
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 6:45 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 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