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 5h 48m 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 - Apr 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:494.78:354.21:450.32:380.06:217:05Third Quarter1Wed
2Thu8:464.69:284.32:400.33:30-0.16:207:06Waning Crescent2Thu
3Fri9:414.610:184.43:350.24:19-0.16:187:07Waning Crescent3Fri
4Sat10:314.711:034.64:280.15:06-0.16:167:08Waning Crescent4Sat
5Sun11:174.811:434.85:180.05:48-0.26:157:09Waning Crescent5Sun
6Mon11:584.96:04-0.16:28-0.16:137:10New Moon6Mon
7Tue12:185.012:355.06:49-0.27:07-0.16:117:11New Moon7Tue
8Wed12:515.21:125.17:31-0.37:44-0.16:107:12New Moon8Wed
9Thu1:225.41:495.18:14-0.38:210.06:087:14New Moon9Thu
10Fri1:565.62:285.08:57-0.49:000.06:067:15Waxing Crescent10Fri
11Sat2:335.73:115.09:42-0.49:410.06:057:16Waxing Crescent11Sat
12Sun3:165.83:594.910:28-0.310:250.16:037:17Waxing Crescent12Sun
13Mon4:045.84:514.811:19-0.311:160.16:027:18First Quarter13Mon
14Tue4:595.75:494.712:16-0.26:007:19First Quarter14Tue
15Wed6:005.66:534.712:150.21:17-0.25:587:20First Quarter15Wed
16Thu7:075.57:584.81:220.22:19-0.25:577:21First Quarter16Thu
17Fri8:155.59:005.12:290.13:18-0.35:557:22Waxing Gibbous17Fri
18Sat9:215.69:595.43:35-0.14:16-0.45:547:23Waxing Gibbous18Sat
19Sun10:235.710:545.74:37-0.35:11-0.45:527:25Waxing Gibbous19Sun
20Mon11:205.811:456.05:36-0.46:02-0.55:517:26Full Moon20Mon
21Tue12:135.86:32-0.66:51-0.45:497:27Full Moon21Tue
22Wed12:336.21:025.87:24-0.77:38-0.35:487:28Full Moon22Wed
23Thu1:186.21:515.68:14-0.78:23-0.25:467:29Full Moon23Thu
24Fri2:036.22:405.49:02-0.69:070.05:457:30Waning Gibbous24Fri
25Sat2:496.03:305.19:49-0.59:510.15:437:31Waning Gibbous25Sat
26Sun3:355.74:204.910:36-0.410:350.25:427:32Waning Gibbous26Sun
27Mon4:235.45:124.611:23-0.211:210.35:417:33Waning Gibbous27Mon
28Tue5:145.16:054.412:11-0.15:397:34Third Quarter28Tue
29Wed6:084.87:014.312:110.41:020.05:387:35Third Quarter29Wed
30Thu7:054.67:554.21:050.41:530.05:367:37Third Quarter30Thu
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