Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 9:10 am (0.4 ft)
Next high tide (tomorrow) : in 4h 35m at 2:52 am (9.9 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jun 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:0010.35:47-1.35:59-0.15:098:14New Moon1Fri
2Sat12:1212.212:5210.56:38-1.66:51-0.25:098:14New Moon2Sat
3Sun1:0512.21:4610.67:30-1.67:44-0.25:088:15Waxing Crescent3Sun
4Mon2:0012.12:4110.68:23-1.48:40-0.15:088:16Waxing Crescent4Mon
5Tue2:5611.73:3710.59:17-1.19:380.15:078:17Waxing Crescent5Tue
6Wed3:5411.24:3410.410:13-0.710:370.35:078:17First Quarter6Wed
7Thu4:5310.65:3210.311:08-0.311:380.65:078:18First Quarter7Thu
8Fri5:5510.16:3210.312:040.25:078:19First Quarter8Fri
9Sat7:009.67:3210.212:390.71:010.75:068:19First Quarter9Sat
10Sun8:039.28:2710.21:400.81:561.05:068:20Waxing Gibbous10Sun
11Mon9:009.09:1810.12:380.82:481.35:068:20Waxing Gibbous11Mon
12Tue9:538.910:0410.13:310.83:371.65:068:21Waxing Gibbous12Tue
13Wed10:418.710:4710.04:200.84:231.75:068:21Waxing Gibbous13Wed
14Thu11:248.711:269.95:030.75:061.85:068:22Full Moon14Thu
15Fri12:038.65:440.75:471.85:068:22Full Moon15Fri
16Sat12:049.912:398.66:220.76:261.85:068:23Full Moon16Sat
17Sun12:409.91:158.77:000.67:061.75:068:23Full Moon17Sun
18Mon1:179.91:528.77:390.67:471.75:068:23Waning Gibbous18Mon
19Tue1:569.92:318.98:190.68:311.75:068:24Waning Gibbous19Tue
20Wed2:379.83:129.09:020.69:171.65:068:24Waning Gibbous20Wed
21Thu3:219.73:569.29:460.710:061.55:078:24Waning Gibbous21Thu
22Fri4:089.54:429.410:320.810:571.45:078:24Third Quarter22Fri
23Sat4:599.35:319.611:200.911:511.25:078:24Third Quarter23Sat
24Sun5:549.16:249.912:111.05:078:25Third Quarter24Sun
25Mon6:539.17:2010.212:470.91:041.05:088:25Waning Crescent25Mon
26Tue7:549.18:1610.71:450.52:000.95:088:25Waning Crescent26Tue
27Wed8:549.39:1211.22:420.02:550.75:088:25Waning Crescent27Wed
28Thu9:529.610:0711.63:39-0.53:510.55:098:25Waning Crescent28Thu
29Fri10:489.911:0311.94:35-0.94:460.25:098:25New Moon29Fri
30Sat11:4410.211:5812.15:29-1.35:41-0.15:108:25New Moon30Sat
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 6:01 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 84% 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 Gibbous (84% 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