Tides Today & Tomorrow in Charleston, OR

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Charleston, OR.
Next low tide : in 3h 03m at 11:36 pm (0.8 ft)
Next high tide (tomorrow) : 5:53 am (4.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9432780
Common Questions About Tides

Charleston, OR Tides - Sep 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:256.310:487.64:45-0.44:492.46:417:52Waxing Gibbous1Sun
2Mon12:026.75:30-0.55:381.86:427:50Full Moon2Mon
3Tue12:357.06:09-0.36:221.46:437:49Full Moon3Tue
4Wed12:247.51:067.26:44-0.17:031.06:457:47Full Moon4Wed
5Thu1:077.31:367.47:170.37:410.76:467:45Full Moon5Thu
6Fri1:487.02:047.47:470.88:180.56:477:43Waning Gibbous6Fri
7Sat2:296.62:327.38:171.48:550.56:487:42Waning Gibbous7Sat
8Sun3:116.23:017.28:471.99:340.66:497:40Waning Gibbous8Sun
9Mon3:555.73:317.09:172.510:180.86:507:38Waning Gibbous9Mon
10Tue4:455.34:076.89:503.011:101.06:517:36Third Quarter10Tue
11Wed5:474.94:516.510:303.46:527:34Third Quarter11Wed
12Thu7:044.75:506.412:131.211:30 AM3.86:537:33Third Quarter12Thu
13Fri8:284.87:056.31:241.212:574.06:547:31Third Quarter13Fri
14Sat9:325.28:196.52:311.02:213.86:567:29Waning Crescent14Sat
15Sun10:165.69:236.83:270.63:273.36:577:27Waning Crescent15Sun
16Mon10:516.210:197.24:140.34:212.66:587:25Waning Crescent16Mon
17Tue11:246.711:107.54:550.15:081.86:597:24Waning Crescent17Tue
18Wed11:567.35:330.05:530.97:007:22New Moon18Wed
19Thu12:007.612:297.96:110.16:370.17:017:20New Moon19Thu
20Fri12:497.71:048.36:480.47:22-0.57:027:18New Moon20Fri
21Sat1:397.51:408.67:260.88:08-0.97:037:16Waxing Crescent21Sat
22Sun2:317.22:198.78:061.48:57-1.07:047:14Waxing Crescent22Sun
23Mon3:266.73:028.58:492.09:51-0.97:067:13Waxing Crescent23Mon
24Tue4:266.23:518.29:362.610:50-0.57:077:11First Quarter24Tue
25Wed5:345.84:487.710:353.111:58-0.17:087:09First Quarter25Wed
26Thu6:525.65:587.211:503.57:097:07First Quarter26Thu
27Fri8:125.87:196.91:120.21:203.57:107:05First Quarter27Fri
28Sat9:196.18:376.82:230.32:433.17:117:04Waxing Gibbous28Sat
29Sun10:096.59:456.93:250.43:492.57:127:02Waxing Gibbous29Sun
30Mon10:496.910:427.04:160.54:421.87:137:00Waxing Gibbous30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9432780)

Common Questions About Charleston, OR Tides

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What time does the tide turn (slack tide) in Charleston, OR today?

Slack tide in Charleston, OR is approximately 2:44 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 Charleston, OR?

Charleston, OR is currently in a transitional phase. Tonight's moon is 37% 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 Charleston, OR 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 Charleston, OR?

Tide predictions for Charleston, OR 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 Charleston, OR?

Tide data for Charleston, OR is sourced from NOAA Station #9432780. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9432780.

What is the moon phase in Charleston, OR tonight?

Tonight the moon over Charleston, OR is First Quarter (37% illuminated). This places Charleston, OR 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