Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 33m at 7:44 pm (1.7 ft)
Next high tide (tomorrow) : 1:53 am (9.9 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jul 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:069.15:540.16:021.15:108:24New Moon1Fri
2Sat12:1310.712:489.46:37-0.26:470.85:118:24New Moon2Sat
3Sun12:5710.91:329.87:21-0.57:330.55:118:24Waxing Crescent3Sun
4Mon1:4211.02:1710.18:06-0.68:230.35:128:24Waxing Crescent4Mon
5Tue2:3111.03:0610.58:54-0.69:160.15:138:24Waxing Crescent5Tue
6Wed3:2410.83:5710.79:44-0.610:110.05:138:23First Quarter6Wed
7Thu4:1910.54:5110.810:36-0.411:080.05:148:23First Quarter7Thu
8Fri5:1710.25:4810.911:30-0.15:158:23First Quarter8Fri
9Sat6:209.86:4911.012:08-0.112:280.25:158:22First Quarter9Sat
10Sun7:279.57:5211.01:11-0.11:270.55:168:22Waxing Gibbous10Sun
11Mon8:329.48:5211.12:13-0.22:260.65:178:21Waxing Gibbous11Mon
12Tue9:339.49:5011.23:13-0.33:240.75:188:21Waxing Gibbous12Tue
13Wed10:319.510:4411.24:11-0.34:200.75:188:20Full Moon13Wed
14Thu11:249.611:3511.15:05-0.45:130.75:198:20Full Moon14Thu
15Fri12:139.65:53-0.46:020.75:208:19Full Moon15Fri
16Sat12:2210.912:579.66:38-0.36:470.75:218:18Full Moon16Sat
17Sun1:0610.71:399.67:19-0.17:310.85:228:18Waning Gibbous17Sun
18Mon1:4810.42:199.68:000.18:160.95:238:17Waning Gibbous18Mon
19Tue2:3010.03:009.58:420.49:011.15:238:16Waning Gibbous19Tue
20Wed3:139.63:419.59:250.79:481.25:248:16Waning Gibbous20Wed
21Thu3:579.24:249.410:091.010:371.45:258:15Third Quarter21Thu
22Fri4:458.85:109.310:551.311:271.55:268:14Third Quarter22Fri
23Sat5:368.56:019.211:441.75:278:13Third Quarter23Sat
24Sun6:328.26:559.212:211.612:361.95:288:12Third Quarter24Sun
25Mon7:308.17:499.31:161.51:292.05:298:11Waning Crescent25Mon
26Tue8:278.18:419.52:111.42:212.05:308:10Waning Crescent26Tue
27Wed9:198.39:319.83:031.13:121.85:318:09Waning Crescent27Wed
28Thu10:078.610:1810.23:530.84:021.55:328:08Waning Crescent28Thu
29Fri10:549.011:0510.64:410.34:511.15:338:07New Moon29Fri
30Sat11:399.511:5011.05:27-0.15:380.65:348:06New Moon30Sat
31Sun12:2310.06:12-0.56:250.15:358:05New Moon31Sun
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 10:48 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 94% 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 (94% 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