Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 12:22 am (0.4 ft)
Next high tide : in 5h 32m at 5:52 pm (10.3 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:42 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Sep 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:059.43:229.89:081.09:380.86:097:18Waning Gibbous1Wed
2Thu3:508.94:069.59:531.510:271.16:107:16Third Quarter2Thu
3Fri4:388.54:559.210:411.911:181.46:117:14Third Quarter3Fri
4Sat5:318.15:499.011:332.26:127:13Third Quarter4Sat
5Sun6:317.86:498.912:141.712:282.46:147:11Third Quarter5Sun
6Mon7:347.87:499.01:121.71:262.46:157:09Waning Crescent6Mon
7Tue8:318.08:449.22:091.62:212.26:167:07Waning Crescent7Tue
8Wed9:218.39:339.53:011.43:131.96:177:06Waning Crescent8Wed
9Thu10:068.710:189.83:491.04:021.56:187:04Waning Crescent9Thu
10Fri10:479.211:0110.14:330.74:481.06:197:02New Moon10Fri
11Sat11:269.811:4310.45:150.35:320.46:207:00New Moon11Sat
12Sun12:0510.35:560.06:15-0.16:216:59New Moon12Sun
13Mon12:2510.612:4510.86:36-0.17:00-0.56:226:57New Moon13Mon
14Tue1:0910.61:2711.27:18-0.27:46-0.86:236:55Waxing Crescent14Tue
15Wed1:5510.52:1311.38:03-0.18:36-0.86:246:53Waxing Crescent15Wed
16Thu2:4510.33:0311.38:520.19:30-0.66:256:52Waxing Crescent16Thu
17Fri3:409.93:5811.19:460.410:27-0.46:266:50First Quarter17Fri
18Sat4:389.54:5810.810:430.811:28-0.16:276:48First Quarter18Sat
19Sun5:439.26:0510.511:451.06:286:46First Quarter19Sun
20Mon6:549.17:1610.412:330.212:511.16:296:44Waxing Gibbous20Mon
21Tue8:049.28:2410.41:380.21:571.06:306:43Waxing Gibbous21Tue
22Wed9:069.69:2610.52:410.23:000.86:316:41Waxing Gibbous22Wed
23Thu10:019.910:2110.53:380.13:580.56:336:39Waxing Gibbous23Thu
24Fri10:5110.211:1110.54:300.14:510.36:346:37Full Moon24Fri
25Sat11:3510.411:5610.35:150.15:370.16:356:36Full Moon25Sat
26Sun12:1410.45:560.36:190.16:366:34Full Moon26Sun
27Mon12:3710.012:5110.36:350.56:590.16:376:32Full Moon27Mon
28Tue1:159.71:2610.27:120.87:390.36:386:30Waning Gibbous28Tue
29Wed1:549.42:0310.07:511.18:200.56:396:29Waning Gibbous29Wed
30Thu2:339.02:439.78:321.59:040.86:406:27Waning Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8443725)

Common Questions About Chelsea, MA Tides

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What time does the tide turn (slack tide) in Chelsea, MA today?

Slack tide in Chelsea, MA is approximately 9:07 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 Chelsea, MA?

Chelsea, MA is currently in a neap phase. Tonight's moon is 44% 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 Chelsea, 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 Chelsea, MA?

Tide predictions for Chelsea, 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 Chelsea, MA?

Tide data for Chelsea, MA is sourced from NOAA Station #8443725. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8443725.

What is the moon phase in Chelsea, MA tonight?

Tonight the moon over Chelsea, MA is Third Quarter (44% illuminated). This places Chelsea, 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