Tides Today & Tomorrow in Charlestown, Charles River, MA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Charlestown, Charles River, MA.
Next low tide : 6:36 pm (-0.1 ft)
Next high tide : in 5h 09m at 12:39 pm (10.1 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:21 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8443838
Common Questions About Tides

Charlestown, Charles River, MA Tides - Mar 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:0610.69:419.72:520.43:32-0.76:175:34Waxing Gibbous1Sat
2Sun9:5811.110:3010.43:46-0.44:21-1.26:165:36Full Moon2Sun
3Mon10:5011.411:1711.04:38-1.15:08-1.56:145:37Full Moon3Mon
4Tue11:4111.55:29-1.65:55-1.66:125:38Full Moon4Tue
5Wed12:0511.412:3211.36:20-1.86:43-1.56:115:39Waning Gibbous5Wed
6Thu12:5411.51:2310.97:11-1.77:31-1.06:095:40Waning Gibbous6Thu
7Fri1:4311.42:1610.28:04-1.48:21-0.46:075:42Waning Gibbous7Fri
8Sat2:3411.03:139.58:59-0.89:150.36:065:43Third Quarter8Sat
9Sun4:3010.45:148.810:58-0.111:140.97:046:44Third Quarter9Sun
10Mon5:319.86:218.312:020.47:026:45Third Quarter10Mon
11Tue6:379.47:308.112:171.51:090.87:016:46Third Quarter11Tue
12Wed7:469.18:388.11:221.72:181.06:596:47Waning Crescent12Wed
13Thu8:529.19:378.32:281.73:210.96:576:49Waning Crescent13Thu
14Fri9:509.310:258.73:291.54:120.86:556:50Waning Crescent14Fri
15Sat10:379.411:059.04:201.24:530.66:546:51Waning Crescent15Sat
16Sun11:179.611:409.35:030.85:290.56:526:52New Moon16Sun
17Mon11:559.65:420.66:030.56:506:53New Moon17Mon
18Tue12:139.512:319.66:190.46:360.56:486:54New Moon18Tue
19Wed12:469.61:079.46:560.37:100.66:476:56New Moon19Wed
20Thu1:199.71:439.37:330.37:450.86:456:57Waxing Crescent20Thu
21Fri1:539.72:219.08:110.38:221.06:436:58Waxing Crescent21Fri
22Sat2:299.63:008.78:500.59:001.36:426:59Waxing Crescent22Sat
23Sun3:079.53:428.49:330.79:421.56:407:00Waxing Crescent23Sun
24Mon3:509.44:308.110:210.910:301.86:387:01First Quarter24Mon
25Tue4:399.35:247.911:151.111:251.96:367:02First Quarter25Tue
26Wed5:369.36:238.012:131.16:357:04First Quarter26Wed
27Thu6:379.47:248.312:251.81:120.96:337:05First Quarter27Thu
28Fri7:419.78:258.81:281.42:120.56:317:06Waxing Gibbous28Fri
29Sat8:4310.19:219.62:300.83:090.06:297:07Waxing Gibbous29Sat
30Sun9:4210.610:1310.43:300.14:03-0.56:287:08Waxing Gibbous30Sun
31Mon10:3711.011:0211.14:26-0.74:53-0.96:267:09Full Moon31Mon
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 3:37 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 2% 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 New Moon (2% 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