Tides Today & Tomorrow in Charlestown, Charles River, MA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Charlestown, Charles River, MA.
Next low tide : in 3h 52m at 9:40 pm (0.5 ft)
Next high tide (tomorrow) : 3:55 am (10.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8443838
Common Questions About Tides

Charlestown, Charles River, MA Tides - Apr 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:119.911:3010.14:550.15:160.26:267:10New Moon1Mon
2Tue11:539.95:39-0.15:560.36:247:11New Moon2Tue
3Wed12:0710.212:339.86:20-0.26:330.46:227:12New Moon3Wed
4Thu12:4410.21:129.66:59-0.27:110.66:207:13New Moon4Thu
5Fri1:2010.11:509.47:380.07:490.86:197:14Waxing Crescent5Fri
6Sat1:5810.02:309.18:180.28:281.16:177:15Waxing Crescent6Sat
7Sun2:379.83:118.88:590.59:091.46:157:16Waxing Crescent7Sun
8Mon3:189.53:558.59:430.89:541.76:147:17Waxing Crescent8Mon
9Tue4:039.34:438.310:301.110:431.96:127:19First Quarter9Tue
10Wed4:529.15:358.211:211.311:352.06:107:20First Quarter10Wed
11Thu5:469.06:288.212:141.36:097:21First Quarter11Thu
12Fri6:429.07:218.512:311.91:071.26:077:22First Quarter12Fri
13Sat7:389.28:149.01:271.62:001.06:057:23Waxing Gibbous13Sat
14Sun8:349.59:059.62:231.12:520.66:047:24Waxing Gibbous14Sun
15Mon9:289.99:5310.33:170.43:430.26:027:25Waxing Gibbous15Mon
16Tue10:1910.310:3911.04:09-0.34:31-0.36:017:26Full Moon16Tue
17Wed11:0810.611:2611.54:59-1.05:18-0.65:597:28Full Moon17Wed
18Thu11:5810.85:49-1.56:06-0.85:577:29Full Moon18Thu
19Fri12:1411.912:4910.86:39-1.86:55-0.85:567:30Full Moon19Fri
20Sat1:0412.01:4210.77:30-1.87:46-0.65:547:31Waning Gibbous20Sat
21Sun1:5511.92:3610.48:23-1.68:38-0.35:537:32Waning Gibbous21Sun
22Mon2:5011.53:3310.09:17-1.19:340.15:517:33Waning Gibbous22Mon
23Tue3:4711.04:339.710:15-0.610:340.65:507:34Third Quarter23Tue
24Wed4:4910.55:379.411:16-0.111:380.95:487:35Third Quarter24Wed
25Thu5:5510.06:429.312:190.35:477:37Third Quarter25Thu
26Fri7:029.67:459.412:441.11:210.65:457:38Waning Crescent26Fri
27Sat8:089.48:449.61:491.12:210.85:447:39Waning Crescent27Sat
28Sun9:099.49:369.82:520.93:160.95:427:40Waning Crescent28Sun
29Mon10:039.410:2110.03:470.64:040.95:417:41Waning Crescent29Mon
30Tue10:499.411:0110.14:350.44:470.95:407:42New Moon30Tue
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 12:47 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 transitional phase. Tonight's moon is 27% 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 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 Waxing Crescent (27% illuminated). This places Charlestown, Charles River, 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