Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 3h 37m at 2:56 pm (0.9 ft)
Next high tide : 9:15 pm (11.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Oct 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:498.36:079.011:552.16:426:24First Quarter1Tue
2Wed6:488.37:079.012:301.412:512.06:436:22First Quarter2Wed
3Thu7:458.58:039.21:261.31:471.86:446:21Waxing Gibbous3Thu
4Fri8:378.98:559.52:191.12:401.46:456:19Waxing Gibbous4Fri
5Sat9:259.49:449.93:080.83:300.96:466:17Waxing Gibbous5Sat
6Sun10:0910.010:3110.33:560.44:180.36:476:16Waxing Gibbous6Sun
7Mon10:5310.511:1710.64:410.15:06-0.36:486:14Full Moon7Mon
8Tue11:3711.15:27-0.35:52-0.86:506:12Full Moon8Tue
9Wed12:0310.912:2111.66:12-0.66:39-1.36:516:11Full Moon9Wed
10Thu12:5011.11:0711.96:57-0.77:28-1.56:526:09Waning Gibbous10Thu
11Fri1:3911.01:5711.97:46-0.68:19-1.56:536:07Waning Gibbous11Fri
12Sat2:3110.92:4911.88:37-0.49:13-1.36:546:06Waning Gibbous12Sat
13Sun3:2610.63:4611.59:33-0.110:10-0.96:556:04Third Quarter13Sun
14Mon4:2610.34:4711.110:310.211:10-0.66:566:02Third Quarter14Mon
15Tue5:2910.05:5210.711:330.56:586:01Third Quarter15Tue
16Wed6:369.97:0110.412:12-0.212:370.66:595:59Third Quarter16Wed
17Thu7:4410.08:0810.31:150.01:420.67:005:58Waning Crescent17Thu
18Fri8:4510.19:0910.32:160.12:440.57:015:56Waning Crescent18Fri
19Sat9:3910.310:0310.23:120.23:400.37:025:55Waning Crescent19Sat
20Sun10:2810.410:5310.14:030.34:310.27:035:53New Moon20Sun
21Mon11:1210.511:3710.04:490.45:160.17:055:52New Moon21Mon
22Tue11:5110.45:310.65:570.17:065:50New Moon22Tue
23Wed12:169.812:2710.36:100.76:350.27:075:49New Moon23Wed
24Thu12:539.51:0110.26:470.97:140.37:085:47Waxing Crescent24Thu
25Fri1:299.31:3710.07:261.17:530.47:095:46Waxing Crescent25Fri
26Sat2:079.12:159.88:061.38:360.67:115:44Waxing Crescent26Sat
27Sun2:488.92:579.68:501.69:210.87:125:43Waxing Crescent27Sun
28Mon3:328.83:439.49:371.810:091.07:135:41Waxing Crescent28Mon
29Tue4:198.64:329.210:271.910:591.17:145:40First Quarter29Tue
30Wed5:108.55:259.111:202.011:521.27:165:39First Quarter30Wed
31Thu6:068.66:239.012:151.97:175:37First Quarter31Thu
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 6:05 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 spring phase. Tonight's moon is 11% 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 (11% 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