Tides Today & Tomorrow in Charlestown, Charles River, MA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Charlestown, Charles River, MA.
Next low tide (tomorrow) : 7:04 am (0.5 ft)
Next high tide (tomorrow) : in 5h 33m at 12:38 am (10.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8443838
Common Questions About Tides

Charlestown, Charles River, MA Tides - Oct 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:0310.23:1711.39:050.19:47-0.66:416:26Waning Gibbous1Mon
2Tue4:019.64:1610.810:010.710:480.06:426:25Third Quarter2Tue
3Wed5:059.15:2010.311:031.211:530.46:436:23Third Quarter3Wed
4Thu6:138.86:299.912:081.66:446:21Third Quarter4Thu
5Fri7:218.87:379.71:000.71:151.76:456:19Waning Crescent5Fri
6Sat8:278.98:439.72:050.82:211.66:466:18Waning Crescent6Sat
7Sun9:249.29:419.73:050.83:221.36:476:16Waning Crescent7Sun
8Mon10:119.510:299.73:560.84:141.06:486:14Waning Crescent8Mon
9Tue10:529.711:119.74:390.74:580.76:506:13New Moon9Tue
10Wed11:289.911:509.65:170.85:380.56:516:11New Moon10Wed
11Thu12:0210.05:530.96:170.46:526:09New Moon11Thu
12Fri12:289.512:3710.06:281.06:550.46:536:08New Moon12Fri
13Sat1:069.31:1210.07:041.27:330.56:546:06Waxing Crescent13Sat
14Sun1:449.01:499.87:411.58:120.76:556:04Waxing Crescent14Sun
15Mon2:248.72:279.68:201.78:531.06:566:03Waxing Crescent15Mon
16Tue3:068.43:099.49:012.09:381.26:586:01Waxing Crescent16Tue
17Wed3:518.23:559.39:462.310:271.46:596:00First Quarter17Wed
18Thu4:418.04:479.110:372.411:201.57:005:58First Quarter18Thu
19Fri5:368.05:439.111:322.47:015:56First Quarter19Fri
20Sat6:318.26:419.312:151.412:302.27:025:55First Quarter20Sat
21Sun7:258.67:399.51:101.21:291.77:035:53Waxing Gibbous21Sun
22Mon8:189.28:369.92:040.82:261.17:055:52Waxing Gibbous22Mon
23Tue9:0910.09:3110.32:560.43:220.37:065:50Waxing Gibbous23Tue
24Wed9:5710.810:2310.73:46-0.14:15-0.57:075:49Full Moon24Wed
25Thu10:4311.511:1410.94:34-0.45:06-1.27:085:47Full Moon25Thu
26Fri11:3011.95:22-0.65:56-1.67:095:46Full Moon26Fri
27Sat12:0510.912:1912.26:11-0.76:47-1.77:115:45Full Moon27Sat
28Sun12:5810.71:1012.17:00-0.57:40-1.67:125:43Waning Gibbous28Sun
29Mon1:5210.42:0311.87:52-0.18:33-1.27:135:42Waning Gibbous29Mon
30Tue2:479.92:5811.38:450.39:29-0.67:145:40Waning Gibbous30Tue
31Wed3:469.53:5810.79:430.910:290.07:165:39Third Quarter31Wed
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 3:51 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 Charlestown, Charles River, MA?

Charlestown, Charles River, MA is currently in a spring phase. Tonight's moon is 100% 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 Full Moon (100% 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