Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 5h 04m at 8:59 am (0.6 ft)
Next high tide : 3:09 pm (9.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jul 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:468.410:5110.04:320.84:371.95:118:24Full Moon1Tue
2Wed11:308.611:3410.35:170.55:221.75:118:24Full Moon2Wed
3Thu12:138.86:010.26:061.45:128:24Full Moon3Thu
4Fri12:1710.612:569.16:44-0.16:511.25:128:24Full Moon4Fri
5Sat1:0210.81:409.47:29-0.37:380.95:138:24Waning Gibbous5Sat
6Sun1:4810.92:279.78:15-0.58:290.75:148:23Waning Gibbous6Sun
7Mon2:3810.93:1710.09:04-0.59:220.55:148:23Waning Gibbous7Mon
8Tue3:3110.84:0810.39:54-0.410:190.45:158:23Third Quarter8Tue
9Wed4:2710.55:0210.510:46-0.211:170.35:168:22Third Quarter9Wed
10Thu5:2610.15:5910.711:400.05:178:22Third Quarter10Thu
11Fri6:309.76:5910.812:170.212:370.35:178:21Third Quarter11Fri
12Sat7:369.58:0010.91:190.01:350.65:188:21Waning Crescent12Sat
13Sun8:409.38:5811.02:21-0.12:330.85:198:20Waning Crescent13Sun
14Mon9:419.39:5511.13:21-0.23:300.95:208:19Waning Crescent14Mon
15Tue10:389.310:4911.04:18-0.34:261.05:208:19New Moon15Tue
16Wed11:329.311:4010.95:12-0.35:181.05:218:18New Moon16Wed
17Thu12:209.36:01-0.26:071.05:228:18New Moon17Thu
18Fri12:2710.81:059.26:46-0.16:521.15:238:17New Moon18Fri
19Sat1:1110.61:479.27:280.17:361.25:248:16Waxing Crescent19Sat
20Sun1:5410.32:289.28:100.38:211.35:258:15Waxing Crescent20Sun
21Mon2:369.93:099.18:510.59:071.45:268:14Waxing Crescent21Mon
22Tue3:199.63:509.19:340.89:551.55:278:14Waxing Crescent22Tue
23Wed4:049.24:339.110:181.110:431.65:288:13First Quarter23Wed
24Thu4:518.85:199.111:041.511:341.75:298:12First Quarter24Thu
25Fri5:438.46:089.011:521.85:308:11First Quarter25Fri
26Sat6:398.17:019.012:281.712:422.05:318:10First Quarter26Sat
27Sun7:378.07:549.21:231.61:352.25:328:09Waxing Gibbous27Sun
28Mon8:338.08:469.42:171.52:272.25:338:08Waxing Gibbous28Mon
29Tue9:268.19:359.73:101.23:182.05:348:07Waxing Gibbous29Tue
30Wed10:158.410:2310.14:010.94:081.85:358:06Waxing Gibbous30Wed
31Thu11:028.711:1010.54:500.44:561.45:368:05Full 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 12:04 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 81% 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 (81% 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