Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 10:03 pm (1.4 ft)
Next high tide : in 1h 58m at 3:52 pm (9.3 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Sep 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:307.97:459.01:041.61:162.46:107:17Waxing Gibbous1Thu
2Fri8:317.98:429.12:041.62:142.46:117:15Waxing Gibbous2Fri
3Sat9:238.19:339.32:591.53:072.26:127:14Waxing Gibbous3Sat
4Sun10:098.410:189.53:481.33:561.96:137:12Waxing Gibbous4Sun
5Mon10:508.710:599.74:321.14:411.66:147:10Full Moon5Mon
6Tue11:279.011:379.95:120.85:231.26:157:08Full Moon6Tue
7Wed12:019.45:490.66:030.86:167:07Full Moon7Wed
8Thu12:1410.012:359.86:260.56:430.56:177:05Full Moon8Thu
9Fri12:5210.01:1110.17:030.47:240.26:187:03Waning Gibbous9Fri
10Sat1:3110.01:4910.47:410.48:070.06:197:01Waning Gibbous10Sat
11Sun2:149.92:3110.68:230.58:540.06:207:00Waning Gibbous11Sun
12Mon3:019.73:1810.69:100.79:460.06:216:58Waning Gibbous12Mon
13Tue3:539.44:1110.510:011.010:420.26:226:56Third Quarter13Tue
14Wed4:509.15:0910.410:571.211:430.36:236:54Third Quarter14Wed
15Thu5:548.86:1510.311:591.46:246:53Third Quarter15Thu
16Fri7:058.87:2610.412:470.41:041.36:266:51Waning Crescent16Fri
17Sat8:139.18:3310.61:520.22:091.16:276:49Waning Crescent17Sat
18Sun9:159.59:3410.82:540.03:120.76:286:47Waning Crescent18Sun
19Mon10:1110.110:3111.03:51-0.24:100.26:296:45Waning Crescent19Mon
20Tue11:0210.511:2311.04:43-0.45:04-0.26:306:44New Moon20Tue
21Wed11:4910.85:31-0.55:54-0.56:316:42New Moon21Wed
22Thu12:1210.912:3211.06:16-0.36:40-0.56:326:40New Moon22Thu
23Fri12:5710.61:1410.96:58-0.17:24-0.46:336:38Waxing Crescent23Fri
24Sat1:4110.21:5510.77:400.38:09-0.26:346:37Waxing Crescent24Sat
25Sun2:259.72:3710.48:230.88:550.26:356:35Waxing Crescent25Sun
26Mon3:109.23:2210.09:081.39:430.76:366:33Waxing Crescent26Mon
27Tue3:588.74:099.59:561.810:331.16:376:31First Quarter27Tue
28Wed4:498.35:019.110:472.211:271.56:386:30First Quarter28Wed
29Thu5:458.06:008.911:422.46:396:28First Quarter29Thu
30Fri6:487.87:038.812:241.712:402.56:416:26First Quarter30Fri
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 6:57 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places Chelsea, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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