Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 2h 02m at 6:58 am (0.7 ft)
Next high tide : 1:12 pm (8.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jul 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:1810.22:549.18:360.38:491.55:118:24Waning Gibbous1Wed
2Thu3:019.93:379.09:200.69:361.65:118:24Waning Gibbous2Thu
3Fri3:469.64:229.010:060.810:251.75:128:24Third Quarter3Fri
4Sat4:339.25:089.010:521.011:161.75:138:24Third Quarter4Sat
5Sun5:248.95:589.011:411.25:138:24Third Quarter5Sun
6Mon6:188.76:509.112:091.712:311.45:148:23Third Quarter6Mon
7Tue7:158.57:419.31:031.61:221.65:158:23Third Quarter7Tue
8Wed8:108.58:309.61:571.42:121.65:158:22Waning Crescent8Wed
9Thu9:028.69:189.92:491.13:011.55:168:22Waning Crescent9Thu
10Fri9:518.810:0410.33:390.73:501.35:178:22Waning Crescent10Fri
11Sat10:399.110:5010.74:280.24:381.05:178:21New Moon11Sat
12Sun11:279.411:3711.15:16-0.25:260.75:188:21New Moon12Sun
13Mon12:149.86:03-0.76:140.45:198:20New Moon13Mon
14Tue12:2511.51:0110.26:50-1.07:030.15:208:19New Moon14Tue
15Wed1:1411.71:5010.57:38-1.27:53-0.25:218:19Waxing Crescent15Wed
16Thu2:0511.72:4210.78:28-1.38:47-0.35:228:18Waxing Crescent16Thu
17Fri2:5911.53:3510.99:20-1.19:44-0.35:228:17Waxing Crescent17Fri
18Sat3:5511.24:3110.910:14-0.910:42-0.25:238:17First Quarter18Sat
19Sun4:5410.75:2810.911:09-0.511:42-0.15:248:16First Quarter19Sun
20Mon5:5610.26:2910.912:06-0.15:258:15First Quarter20Mon
21Tue7:029.87:3210.812:440.01:040.25:268:14Waxing Gibbous21Tue
22Wed8:089.68:3210.81:470.02:030.55:278:13Waxing Gibbous22Wed
23Thu9:109.59:2910.82:480.03:010.85:288:12Waxing Gibbous23Thu
24Fri10:089.410:2110.73:450.03:550.95:298:12Waxing Gibbous24Fri
25Sat11:009.311:1010.64:390.04:461.05:308:11Full Moon25Sat
26Sun11:479.311:5510.55:260.15:331.15:318:10Full Moon26Sun
27Mon12:299.26:090.16:161.15:328:09Full Moon27Mon
28Tue12:3510.31:079.26:480.26:561.25:338:08Full Moon28Tue
29Wed1:1310.21:449.27:270.37:371.25:348:06Waning Gibbous29Wed
30Thu1:5110.02:219.28:060.58:191.35:358:05Waning Gibbous30Thu
31Fri2:309.83:009.28:460.69:041.35:368:04Waning Gibbous31Fri
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 10:05 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 97% 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 Full Moon (97% 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