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 5h 34m 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 - Jun 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:545.77:126.812:172.612:190.65:398:50First Quarter1Sat
2Sun7:165.37:597.21:301.91:141.25:398:51First Quarter2Sun
3Mon8:405.28:477.72:371.02:111.75:388:52Waxing Gibbous3Mon
4Tue9:575.49:358.23:380.03:092.15:388:53Waxing Gibbous4Tue
5Wed11:045.710:248.54:34-1.04:082.45:378:53Waxing Gibbous5Wed
6Thu12:046.05:26-1.75:042.55:378:54Full Moon6Thu
7Fri12:596.36:16-2.25:592.65:378:55Full Moon7Fri
8Sat12:028.81:506.57:04-2.46:522.65:368:55Full Moon8Sat
9Sun12:528.72:396.67:51-2.47:452.55:368:56Waning Gibbous9Sun
10Mon1:428.43:266.68:37-2.08:382.55:368:57Waning Gibbous10Mon
11Tue2:337.94:126.69:23-1.59:332.55:368:57Waning Gibbous11Tue
12Wed3:247.24:576.610:07-0.910:332.55:368:58Waning Gibbous12Wed
13Thu4:176.55:436.610:52-0.111:382.45:368:58Third Quarter13Thu
14Fri5:155.86:276.611:370.65:368:59Third Quarter14Fri
15Sat6:225.17:126.712:462.112:241.45:368:59Third Quarter15Sat
16Sun7:374.77:566.81:521.71:132.05:368:59Third Quarter16Sun
17Mon8:564.68:396.92:521.22:052.55:369:00Waning Crescent17Mon
18Tue10:094.79:217.03:450.72:582.95:369:00Waning Crescent18Tue
19Wed11:084.910:027.24:320.23:493.25:369:00Waning Crescent19Wed
20Thu11:575.210:427.35:14-0.34:383.35:369:01Waning Crescent20Thu
21Fri12:395.45:53-0.75:243.35:379:01New Moon21Fri
22Sat1:185.66:31-1.06:073.25:379:01New Moon22Sat
23Sun12:017.61:555.87:07-1.26:483.15:379:01New Moon23Sun
24Mon12:407.62:326.07:43-1.37:293.05:379:01New Moon24Mon
25Tue1:207.63:086.28:18-1.38:122.95:389:01Waxing Crescent25Tue
26Wed2:027.43:446.48:54-1.28:592.75:389:01Waxing Crescent26Wed
27Thu2:467.14:216.69:31-0.99:512.45:399:01Waxing Crescent27Thu
28Fri3:366.65:006.810:10-0.410:512.15:399:01Waxing Crescent28Fri
29Sat4:346.05:417.110:520.311:571.65:399:01First Quarter29Sat
30Sun5:435.46:267.311:391.05:409:01First Quarter30Sun
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