Tides Today & Tomorrow in Charlestown, Charles River, MA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Charlestown, Charles River, MA.
Next low tide : in 2h 48m at 8:30 pm (1.5 ft)
Next high tide (tomorrow) : 2:37 am (9.9 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8443838
Common Questions About Tides

Charlestown, Charles River, MA Tides - Oct 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:048.37:179.712:521.21:061.96:416:26Waning Crescent1Tue
2Wed8:038.78:1710.11:500.92:051.56:426:24Waning Crescent2Wed
3Thu9:009.39:1610.62:470.43:040.86:436:22Waning Crescent3Thu
4Fri9:5310.010:1111.03:41-0.14:010.16:446:21Waning Crescent4Fri
5Sat10:4210.811:0411.44:32-0.74:54-0.76:456:19New Moon5Sat
6Sun11:3011.411:5611.55:21-1.05:46-1.36:466:17New Moon6Sun
7Mon12:1911.86:10-1.26:37-1.66:476:16New Moon7Mon
8Tue12:4911.41:0912.06:59-1.17:29-1.76:496:14Waxing Crescent8Tue
9Wed1:4211.21:5911.97:48-0.88:22-1.46:506:12Waxing Crescent9Wed
10Thu2:3610.72:5111.58:39-0.39:16-1.06:516:11Waxing Crescent10Thu
11Fri3:3210.13:4611.09:320.410:14-0.46:526:09First Quarter11Fri
12Sat4:329.54:4510.410:301.011:150.26:536:07First Quarter12Sat
13Sun5:369.15:499.911:321.56:546:06First Quarter13Sun
14Mon6:428.86:559.612:190.612:351.86:556:04First Quarter14Mon
15Tue7:468.87:599.51:230.91:391.86:576:02Waxing Gibbous15Tue
16Wed8:458.98:599.52:241.02:411.76:586:01Waxing Gibbous16Wed
17Thu9:369.29:509.53:181.03:351.46:595:59Waxing Gibbous17Thu
18Fri10:199.410:349.64:040.94:221.17:005:58Waxing Gibbous18Fri
19Sat10:569.711:149.74:430.85:030.87:015:56Full Moon19Sat
20Sun11:319.911:519.65:190.85:410.67:035:55Full Moon20Sun
21Mon12:0510.05:540.86:180.47:045:53Full Moon21Mon
22Tue12:299.512:3910.06:300.96:560.47:055:51Full Moon22Tue
23Wed1:069.41:1410.07:061.17:340.47:065:50Waning Gibbous23Wed
24Thu1:459.21:509.97:431.38:140.57:075:49Waning Gibbous24Thu
25Fri2:248.92:289.88:221.58:550.77:095:47Waning Gibbous25Fri
26Sat3:068.73:109.79:041.79:400.97:105:46Waning Gibbous26Sat
27Sun2:528.52:579.68:501.99:311.06:114:44Third Quarter27Sun
28Mon3:438.33:509.59:432.010:261.06:124:43Third Quarter28Mon
29Tue4:398.44:499.510:412.011:230.96:134:41Third Quarter29Tue
30Wed5:378.75:509.711:411.76:154:40Third Quarter30Wed
31Thu6:359.26:5210.012:210.612:421.26:164:39Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8443838)

Common Questions About Charlestown, Charles River, MA Tides

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What time does the tide turn (slack tide) in Charlestown, Charles River, MA today?

Slack tide in Charlestown, Charles River, MA is approximately 11:33 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 Charlestown, Charles River, MA?

Charlestown, Charles River, MA is currently in a spring phase. Tonight's moon is 88% 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 Charlestown, Charles River, 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 Charlestown, Charles River, MA?

Tide predictions for Charlestown, Charles River, 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 Charlestown, Charles River, MA?

Tide data for Charlestown, Charles River, MA is sourced from NOAA Station #8443838. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8443838.

What is the moon phase in Charlestown, Charles River, MA tonight?

Tonight the moon over Charlestown, Charles River, MA is Waning Gibbous (88% illuminated). This places Charlestown, Charles River, 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