Tides Today & Tomorrow in Chatham, MA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Chatham, MA.
Next low tide (tomorrow) : 12:58 am (0.1 ft)
Next high tide : in 2h 01m at 6:28 pm (5.1 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8447435
Common Questions About Tides

Chatham, MA Tides - May 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:086.04:584.911:24-0.411:250.15:357:38First Quarter1Thu
2Fri5:065.95:594.912:22-0.45:337:39First Quarter2Fri
3Sat6:105.67:034.912:270.21:22-0.35:327:40First Quarter3Sat
4Sun7:195.58:075.01:340.12:22-0.35:317:41First Quarter4Sun
5Mon8:265.49:075.22:390.03:20-0.45:307:42Waxing Gibbous5Mon
6Tue9:305.410:045.53:43-0.14:15-0.45:287:43Waxing Gibbous6Tue
7Wed10:295.410:575.84:44-0.35:08-0.45:277:44Waxing Gibbous7Wed
8Thu11:245.411:455.95:41-0.45:58-0.35:267:45Full Moon8Thu
9Fri12:145.46:34-0.56:45-0.25:257:47Full Moon9Fri
10Sat12:306.01:025.47:23-0.67:29-0.15:247:48Full Moon10Sat
11Sun1:136.01:485.28:10-0.68:120.15:237:49Full Moon11Sun
12Mon1:545.92:345.08:55-0.58:530.25:227:50Waning Gibbous12Mon
13Tue2:375.73:214.89:39-0.49:350.35:217:51Waning Gibbous13Tue
14Wed3:205.54:084.610:22-0.310:160.45:207:52Waning Gibbous14Wed
15Thu4:045.34:554.411:04-0.210:590.45:197:53Waning Gibbous15Thu
16Fri4:505.05:454.311:48-0.111:460.45:187:54Third Quarter16Fri
17Sat5:404.76:354.212:34-0.15:177:55Third Quarter17Sat
18Sun6:334.57:264.212:380.41:230.05:167:56Third Quarter18Sun
19Mon7:294.48:164.31:340.42:110.05:157:57Third Quarter19Mon
20Tue8:244.49:024.52:300.32:590.05:147:58Waning Crescent20Tue
21Wed9:174.49:464.83:260.23:470.05:137:59Waning Crescent21Wed
22Thu10:084.510:295.14:200.14:340.05:137:59Waning Crescent22Thu
23Fri10:574.711:105.55:14-0.15:200.05:128:00Waning Crescent23Fri
24Sat11:434.911:525.96:05-0.36:060.15:118:01New Moon24Sat
25Sun12:285.06:55-0.46:530.15:118:02New Moon25Sun
26Mon12:346.21:145.17:44-0.57:400.05:108:03New Moon26Mon
27Tue1:196.42:025.28:35-0.68:300.05:098:04Waxing Crescent27Tue
28Wed2:076.42:545.29:25-0.69:230.05:098:05Waxing Crescent28Wed
29Thu3:006.43:485.210:17-0.610:180.05:088:05Waxing Crescent29Thu
30Fri3:566.24:465.111:10-0.611:150.05:088:06Waxing Crescent30Fri
31Sat4:566.05:465.112:05-0.65:078:07First Quarter31Sat
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 9:43 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Chatham, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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