Tides Today & Tomorrow in Charlestown, Charles River, MA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Charlestown, Charles River, MA.
Next low tide (tomorrow) : 7:13 am (0.3 ft)
Next high tide (tomorrow) : in 3h 13m at 12:53 am (10.2 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:35 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8443838
Common Questions About Tides

Charlestown, Charles River, MA Tides - Apr 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:419.72:119.08:010.38:101.26:257:10Waxing Crescent1Wed
2Thu2:179.72:508.78:400.58:481.46:237:11Waxing Crescent2Thu
3Fri2:559.53:328.49:220.79:301.76:217:12Waxing Crescent3Fri
4Sat3:379.44:198.110:081.010:171.96:207:13First Quarter4Sat
5Sun4:269.35:118.011:001.111:112.06:187:14First Quarter5Sun
6Mon5:219.26:098.011:571.16:167:16First Quarter6Mon
7Tue6:219.37:088.312:101.912:551.06:157:17First Quarter7Tue
8Wed7:239.58:068.81:111.61:530.76:137:18Waxing Gibbous8Wed
9Thu8:259.99:029.62:121.02:500.26:117:19Waxing Gibbous9Thu
10Fri9:2410.39:5410.43:120.33:43-0.36:107:20Waxing Gibbous10Fri
11Sat10:1910.710:4311.14:08-0.54:34-0.76:087:21Full Moon11Sat
12Sun11:1211.011:3111.75:01-1.25:23-0.96:067:22Full Moon12Sun
13Mon12:0411.05:53-1.76:11-1.06:057:24Full Moon13Mon
14Tue12:2012.012:5610.96:44-1.97:00-0.86:037:25Waning Gibbous14Tue
15Wed1:1012.01:4910.67:35-1.87:50-0.46:017:26Waning Gibbous15Wed
16Thu2:0011.72:4210.18:28-1.48:410.16:007:27Waning Gibbous16Thu
17Fri2:5311.23:389.59:21-0.89:350.75:587:28Waning Gibbous17Fri
18Sat3:4910.64:389.010:19-0.110:341.35:577:29Third Quarter18Sat
19Sun4:499.95:418.611:200.511:371.75:557:30Third Quarter19Sun
20Mon5:549.46:468.512:231.05:547:31Third Quarter20Mon
21Tue7:009.17:488.512:411.91:251.25:527:33Third Quarter21Tue
22Wed8:049.08:448.71:451.92:241.35:517:34Waning Crescent22Wed
23Thu9:039.09:329.02:461.63:151.35:497:35Waning Crescent23Thu
24Fri9:539.010:149.43:391.33:591.35:487:36Waning Crescent24Fri
25Sat10:369.110:509.64:241.04:381.25:467:37Waning Crescent25Sat
26Sun11:169.211:259.85:050.75:141.25:457:38New Moon26Sun
27Mon11:549.25:420.55:501.25:437:39New Moon27Mon
28Tue12:009.912:329.16:200.36:261.35:427:40New Moon28Tue
29Wed12:3510.01:109.06:580.37:041.45:417:42New Moon29Wed
30Thu1:1110.01:498.87:360.37:421.55:397:43Waxing Crescent30Thu
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 4:03 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 99% 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 (99% 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