Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 1h 33m at 3:54 pm (0.7 ft)
Next high tide : 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 - Jul 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:278.98:4810.12:171.02:321.25:118:24Waning Crescent1Wed
2Thu9:209.19:3710.53:090.63:221.05:118:24Waning Crescent2Thu
3Fri10:119.410:2611.04:000.04:130.75:128:24Waning Crescent3Fri
4Sat11:029.811:1511.54:51-0.55:030.35:138:24New Moon4Sat
5Sun11:5210.25:40-1.05:530.05:138:24New Moon5Sun
6Mon12:0511.812:4210.56:30-1.46:44-0.35:148:23New Moon6Mon
7Tue12:5612.11:3310.87:19-1.67:35-0.55:148:23Waxing Crescent7Tue
8Wed1:4812.12:2511.08:10-1.68:30-0.55:158:23Waxing Crescent8Wed
9Thu2:4311.93:2011.19:03-1.59:26-0.55:168:22Waxing Crescent9Thu
10Fri3:3911.54:1611.09:57-1.210:24-0.35:178:22First Quarter10Fri
11Sat4:3811.05:1411.010:53-0.811:24-0.15:178:21First Quarter11Sat
12Sun5:3910.46:1410.811:49-0.35:188:21First Quarter12Sun
13Mon6:4410.07:1610.712:250.112:470.25:198:20First Quarter13Mon
14Tue7:509.68:1610.71:280.21:460.55:208:19Waxing Gibbous14Tue
15Wed8:529.49:1210.62:290.32:420.85:218:19Waxing Gibbous15Wed
16Thu9:499.310:0410.53:260.33:361.05:218:18Waxing Gibbous16Thu
17Fri10:419.210:5110.44:190.34:261.25:228:17Waxing Gibbous17Fri
18Sat11:279.111:3410.35:060.35:111.35:238:17Full Moon18Sat
19Sun12:089.15:470.45:531.35:248:16Full Moon19Sun
20Mon12:1310.212:459.06:260.46:331.35:258:15Full Moon20Mon
21Tue12:5010.11:219.07:040.47:131.35:268:14Full Moon21Tue
22Wed1:2610.01:579.17:420.57:541.35:278:13Waning Gibbous22Wed
23Thu2:049.82:349.18:220.58:371.35:288:13Waning Gibbous23Thu
24Fri2:449.73:149.29:030.79:221.35:298:12Waning Gibbous24Fri
25Sat3:279.53:579.39:470.810:101.45:308:11Waning Gibbous25Sat
26Sun4:139.34:429.310:331.010:591.35:318:10Third Quarter26Sun
27Mon5:029.05:309.411:201.111:521.35:328:09Third Quarter27Mon
28Tue5:558.86:239.512:111.35:338:08Third Quarter28Tue
29Wed6:538.77:189.812:471.11:041.35:348:07Third Quarter29Wed
30Thu7:528.88:1410.21:430.81:591.25:358:06Waning Crescent30Thu
31Fri8:499.19:0810.72:380.42:530.95:368:04Waning Crescent31Fri
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 7:03 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 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