Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 3h 25m at 3:45 am (1.3 ft)
Next high tide : 10:08 am (8.1 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:30 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - May 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:3910.811:5511.95:22-1.35:37-0.45:377:44New Moon1Tue
2Wed12:2910.76:12-1.46:26-0.35:367:45New Moon2Wed
3Thu12:4311.91:1810.57:01-1.37:140.05:357:46Waxing Crescent3Thu
4Fri1:3111.62:0710.27:49-1.08:020.35:337:47Waxing Crescent4Fri
5Sat2:1911.22:579.88:38-0.68:520.75:327:49Waxing Crescent5Sat
6Sun3:0910.73:479.59:28-0.19:441.15:317:50Waxing Crescent6Sun
7Mon4:0010.24:399.210:180.410:371.55:307:51First Quarter7Mon
8Tue4:539.75:339.011:100.811:321.75:287:52First Quarter8Tue
9Wed5:499.26:298.912:031.15:277:53First Quarter9Wed
10Thu6:488.97:268.912:281.812:561.45:267:54First Quarter10Thu
11Fri7:478.88:179.11:241.81:481.55:257:55Waxing Gibbous11Fri
12Sat8:408.89:039.32:181.62:371.55:247:56Waxing Gibbous12Sat
13Sun9:298.89:469.53:091.43:241.55:237:57Waxing Gibbous13Sun
14Mon10:148.910:269.83:551.14:081.55:227:58Waxing Gibbous14Mon
15Tue10:569.011:0510.04:400.84:511.45:217:59Full Moon15Tue
16Wed11:369.111:4310.35:220.55:321.35:208:00Full Moon16Wed
17Thu12:159.26:040.26:141.25:198:01Full Moon17Thu
18Fri12:2210.512:569.46:45-0.16:551.05:188:02Full Moon18Fri
19Sat1:0310.71:389.57:28-0.27:390.95:178:03Waning Gibbous19Sat
20Sun1:4710.82:249.68:14-0.38:270.95:168:04Waning Gibbous20Sun
21Mon2:3510.83:139.89:03-0.49:190.85:168:05Waning Gibbous21Mon
22Tue3:2710.84:069.99:54-0.310:150.75:158:06Third Quarter22Tue
23Wed4:2210.65:0210.110:48-0.311:130.65:148:07Third Quarter23Wed
24Thu5:2210.46:0110.311:44-0.25:138:08Third Quarter24Thu
25Fri6:2510.27:0210.612:140.412:41-0.15:138:09Third Quarter25Fri
26Sat7:3110.18:0210.91:160.21:400.05:128:10Waning Crescent26Sat
27Sun8:3410.19:0011.22:17-0.12:360.15:118:11Waning Crescent27Sun
28Mon9:3410.19:5411.53:16-0.53:320.15:118:11Waning Crescent28Mon
29Tue10:3010.210:4611.64:12-0.74:250.15:108:12New Moon29Tue
30Wed11:2410.111:3711.65:05-0.95:170.25:108:13New Moon30Wed
31Thu12:1410.15:55-0.96:060.45:098:14New Moon31Thu
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 6:56 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 92% 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 Waxing Gibbous (92% 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