Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 4:41 am (-0.8 ft)
Next high tide : in 4h 55m at 10:12 pm (11.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:18 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Sep 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:1110.811:3212.04:57-1.25:16-0.86:097:18New Moon1Tue
2Wed12:0211.35:48-1.56:08-1.26:107:16New Moon2Wed
3Thu12:2412.112:5211.76:37-1.67:00-1.46:117:14Waxing Crescent3Thu
4Fri1:1512.01:4211.87:26-1.57:51-1.46:127:13Waxing Crescent4Fri
5Sat2:0711.72:3311.78:16-1.28:44-1.16:147:11Waxing Crescent5Sat
6Sun3:0011.13:2511.49:07-0.79:38-0.76:157:09Waxing Crescent6Sun
7Mon3:5510.54:1911.010:00-0.110:34-0.36:167:07First Quarter7Mon
8Tue4:529.95:1510.510:540.511:310.26:177:06First Quarter8Tue
9Wed5:539.36:1610.011:511.06:187:04First Quarter9Wed
10Thu6:579.07:199.812:310.712:501.46:197:02First Quarter10Thu
11Fri8:028.88:209.61:320.91:491.66:207:00Waxing Gibbous11Fri
12Sat8:598.89:149.62:301.02:451.66:216:59Waxing Gibbous12Sat
13Sun9:498.910:029.73:231.03:361.56:226:57Waxing Gibbous13Sun
14Mon10:339.110:469.74:090.94:221.46:236:55Waxing Gibbous14Mon
15Tue11:129.211:249.84:510.95:051.26:246:53Full Moon15Tue
16Wed11:479.45:300.85:441.06:256:52Full Moon16Wed
17Thu12:009.812:209.56:060.76:230.86:266:50Full Moon17Thu
18Fri12:359.812:539.76:430.67:010.66:276:48Full Moon18Fri
19Sat1:119.81:289.87:200.77:400.56:286:46Waning Gibbous19Sat
20Sun1:489.72:0510.07:590.78:220.56:296:44Waning Gibbous20Sun
21Mon2:299.62:4510.08:400.99:080.56:306:43Waning Gibbous21Mon
22Tue3:139.53:3110.09:251.09:570.56:316:41Waning Gibbous22Tue
23Wed4:029.34:2010.010:151.210:500.56:336:39Third Quarter23Wed
24Thu4:569.15:1610.011:091.311:470.56:346:37Third Quarter24Thu
25Fri5:569.16:1810.112:071.36:356:36Third Quarter25Fri
26Sat7:009.27:2310.312:470.41:081.16:366:34Waning Crescent26Sat
27Sun8:049.68:2610.71:470.12:090.76:376:32Waning Crescent27Sun
28Mon9:0310.19:2511.12:46-0.33:080.16:386:30Waning Crescent28Mon
29Tue9:5910.710:2211.43:41-0.74:05-0.56:396:29Waning Crescent29Tue
30Wed10:5211.211:1611.64:35-1.04:59-1.06:406:27New Moon30Wed
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 1:26 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 Chelsea, MA?

Chelsea, MA is currently in a spring phase. Tonight's moon is 5% 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 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 Waning Crescent (5% illuminated). This places Chelsea, 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