Tides Today & Tomorrow in Charlestown, Charles River, MA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Charlestown, Charles River, MA.
Next low tide : in 57m at 6:36 pm (-0.1 ft)
Next high tide (tomorrow) : 12:50 am (11.7 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 - Oct 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:298.43:359.49:272.010:061.36:426:24Waning Gibbous1Wed
2Thu4:178.24:249.310:142.210:581.46:436:22Third Quarter2Thu
3Fri5:098.05:189.311:072.311:531.46:446:21Third Quarter3Fri
4Sat6:068.16:169.412:052.26:456:19Third Quarter4Sat
5Sun7:038.47:169.612:501.21:041.96:466:17Waning Crescent5Sun
6Mon8:008.98:1610.01:460.92:041.36:476:16Waning Crescent6Mon
7Tue8:549.69:1410.42:410.43:020.66:496:14Waning Crescent7Tue
8Wed9:4510.410:0810.83:34-0.13:58-0.26:506:12Waning Crescent8Wed
9Thu10:3311.211:0011.14:24-0.54:50-0.96:516:11New Moon9Thu
10Fri11:2111.711:5211.25:12-0.85:42-1.56:526:09New Moon10Fri
11Sat12:0912.16:00-0.96:33-1.76:536:07New Moon11Sat
12Sun12:4411.012:5912.16:49-0.87:25-1.76:546:06Waxing Crescent12Sun
13Mon1:3710.71:5011.97:40-0.48:18-1.36:556:04Waxing Crescent13Mon
14Tue2:3110.32:4411.58:310.19:12-0.86:576:02Waxing Crescent14Tue
15Wed3:289.73:4010.99:260.610:10-0.26:586:01First Quarter15Wed
16Thu4:299.24:4110.310:251.211:120.46:595:59First Quarter16Thu
17Fri5:348.95:479.811:281.67:005:58First Quarter17Fri
18Sat6:398.76:539.512:160.812:341.87:015:56First Quarter18Sat
19Sun7:418.87:579.31:181.11:381.87:025:55Waxing Gibbous19Sun
20Mon8:389.08:559.32:171.22:391.67:045:53Waxing Gibbous20Mon
21Tue9:279.39:469.33:091.23:321.37:055:52Waxing Gibbous21Tue
22Wed10:089.510:309.33:531.24:181.07:065:50Waxing Gibbous22Wed
23Thu10:459.811:099.34:321.14:590.77:075:49Full Moon23Thu
24Fri11:209.911:479.35:091.15:370.57:085:47Full Moon24Fri
25Sat11:5410.05:451.26:140.47:105:46Full Moon25Sat
26Sun12:259.212:2910.06:211.36:520.47:115:44Full Moon26Sun
27Mon1:039.01:0610.06:581.47:310.57:125:43Waning Gibbous27Mon
28Tue1:428.81:449.97:361.68:110.67:135:42Waning Gibbous28Tue
29Wed2:228.62:249.88:161.78:530.87:155:40Waning Gibbous29Wed
30Thu3:058.43:079.68:591.99:390.97:165:39Waning Gibbous30Thu
31Fri3:518.33:559.59:472.010:291.07:175:38Third Quarter31Fri
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 9:43 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