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 27m at 10:20 am (2.0 ft)
Next high tide : 4:47 pm (7.1 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 - Apr 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:596.49:216.42:073.12:410.95:586:43Waxing Gibbous1Wed
2Thu9:026.59:576.73:072.53:281.05:566:44Waxing Gibbous2Thu
3Fri9:546.610:287.03:551.94:071.15:556:46Waxing Gibbous3Fri
4Sat10:406.710:567.24:351.44:421.35:536:47Waxing Gibbous4Sat
5Sun11:216.711:237.45:120.95:141.55:516:48Full Moon5Sun
6Mon12:006.65:460.45:441.85:496:49Full Moon6Mon
7Tue12:396.66:180.16:132.05:486:50Full Moon7Tue
8Wed12:187.61:176.46:51-0.16:432.35:466:51Full Moon8Wed
9Thu12:457.61:576.27:26-0.17:132.75:446:53Waning Gibbous9Thu
10Fri1:157.52:395.98:02-0.17:443.05:426:54Waning Gibbous10Fri
11Sat1:477.43:265.68:430.08:203.35:416:55Waning Gibbous11Sat
12Sun2:247.24:215.49:300.29:063.55:396:56Waning Gibbous12Sun
13Mon3:106.95:245.310:250.410:113.75:376:57Third Quarter13Mon
14Tue4:106.66:305.511:280.611:353.65:366:58Third Quarter14Tue
15Wed5:276.47:295.912:320.65:347:00Third Quarter15Wed
16Thu6:516.48:186.412:593.11:330.65:327:01Waning Crescent16Thu
17Fri8:076.59:017.12:092.32:270.75:317:02Waning Crescent17Fri
18Sat9:146.89:427.73:091.33:180.75:297:03Waning Crescent18Sat
19Sun10:157.010:228.34:020.24:060.95:277:04Waning Crescent19Sun
20Mon11:127.211:038.74:52-0.84:511.25:267:05New Moon20Mon
21Tue12:067.25:40-1.55:371.55:247:07New Moon21Tue
22Wed12:597.26:27-1.96:221.85:237:08New Moon22Wed
23Thu12:288.91:526.97:15-2.07:092.25:217:09Waxing Crescent23Thu
24Fri1:138.72:466.78:04-1.77:582.65:207:10Waxing Crescent24Fri
25Sat2:018.23:426.48:55-1.28:532.95:187:11Waxing Crescent25Sat
26Sun2:537.64:426.19:50-0.69:573.25:177:12First Quarter26Sun
27Mon3:516.95:456.010:490.111:133.25:157:14First Quarter27Mon
28Tue4:586.36:476.111:510.65:147:15First Quarter28Tue
29Wed6:135.87:426.312:333.012:521.05:127:16First Quarter29Wed
30Thu7:295.68:266.51:442.51:471.45:117:17Waxing Gibbous30Thu
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 1:33 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 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