Tides Today & Tomorrow in Charlestown, Charles River, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Charlestown, Charles River, MA.
Next low tide : 9:13 pm (1.4 ft)
Next high tide : in 3h 20m at 3:13 pm (9.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8443838
Common Questions About Tides

Charlestown, Charles River, MA Tides - Jun 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:589.98:3210.41:440.62:110.35:098:14Waxing Gibbous1Fri
2Sat9:019.89:2710.62:460.33:070.35:098:15Waxing Gibbous2Sat
3Sun9:599.810:1710.83:450.04:000.45:088:16Waxing Gibbous3Sun
4Mon10:529.811:0410.94:38-0.34:500.55:088:16Full Moon4Mon
5Tue11:419.711:4810.95:27-0.45:360.65:088:17Full Moon5Tue
6Wed12:289.66:13-0.46:200.85:078:18Full Moon6Wed
7Thu12:3110.81:139.46:57-0.37:041.05:078:18Full Moon7Thu
8Fri1:1410.61:569.37:40-0.17:481.35:078:19Waning Gibbous8Fri
9Sat1:5710.32:399.18:230.28:321.55:078:19Waning Gibbous9Sat
10Sun2:4110.03:238.99:060.59:171.75:068:20Waning Gibbous10Sun
11Mon3:259.74:088.89:510.810:041.95:068:21Waning Gibbous11Mon
12Tue4:139.44:558.710:371.010:552.05:068:21Third Quarter12Tue
13Wed5:039.25:438.811:251.211:472.05:068:22Third Quarter13Wed
14Thu5:548.96:318.912:131.45:068:22Third Quarter14Thu
15Fri6:468.87:189.112:391.91:011.45:068:22Third Quarter15Fri
16Sat7:398.88:069.41:311.71:491.45:068:23Waning Crescent16Sat
17Sun8:328.98:539.82:241.32:381.35:068:23Waning Crescent17Sun
18Mon9:249.09:3910.33:150.83:271.15:068:23Waning Crescent18Mon
19Tue10:139.310:2410.84:050.34:150.95:078:24Waning Crescent19Tue
20Wed11:019.511:1011.24:54-0.25:020.65:078:24New Moon20Wed
21Thu11:509.711:5811.55:42-0.75:500.45:078:24New Moon21Thu
22Fri12:419.96:31-1.06:400.25:078:24New Moon22Fri
23Sat12:4911.61:3210.07:21-1.27:320.15:078:25Waxing Crescent23Sat
24Sun1:4211.62:2510.18:12-1.28:250.15:088:25Waxing Crescent24Sun
25Mon2:3611.53:1910.29:04-1.09:210.25:088:25Waxing Crescent25Mon
26Tue3:3211.24:1610.29:58-0.810:200.35:088:25First Quarter26Tue
27Wed4:3110.75:1410.310:54-0.411:210.55:098:25First Quarter27Wed
28Thu5:3410.36:1310.311:52-0.15:098:25First Quarter28Thu
29Fri6:379.97:1110.312:240.512:490.35:108:25First Quarter29Fri
30Sat7:419.58:0910.41:260.51:460.65:108:25Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8443838)

Common Questions About Charlestown, Charles River, MA Tides

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

Slack tide in Charlestown, Charles River, MA is approximately 6:13 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 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 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 (81% 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