Tides Today & Tomorrow in Astoria (Port Docks), OR

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Astoria (Port Docks), OR.
Next low tide : 2:23 pm (3.6 ft)
Next high tide : in 4h 31m at 9:33 am (4.9 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9439023
Common Questions About Tides

Astoria (Port Docks), OR Tides - Sep 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:347.86:25-1.36:370.35:356:55New Moon1Thu
2Fri12:308.51:158.17:10-1.37:28-0.25:366:53New Moon2Fri
3Sat1:228.41:568.47:52-1.18:18-0.55:386:51Waxing Crescent3Sat
4Sun2:138.12:368.58:34-0.69:06-0.65:396:49Waxing Crescent4Sun
5Mon3:047.63:178.49:150.09:55-0.55:406:47Waxing Crescent5Mon
6Tue3:587.03:588.19:560.710:46-0.25:416:45Waxing Crescent6Tue
7Wed4:546.44:437.710:411.411:420.25:436:43First Quarter7Wed
8Thu5:575.95:347.211:332.15:446:41First Quarter8Thu
9Fri7:065.66:336.812:460.612:352.65:456:39First Quarter9Fri
10Sat8:175.67:416.61:550.71:472.95:466:37First Quarter10Sat
11Sun9:225.98:496.63:020.62:572.75:486:35Waxing Gibbous11Sun
12Mon10:156.29:496.83:580.43:572.35:496:34Waxing Gibbous12Mon
13Tue11:006.610:407.04:450.24:491.85:506:32Waxing Gibbous13Tue
14Wed11:386.911:257.15:250.15:341.45:516:30Waxing Gibbous14Wed
15Thu12:127.16:010.06:160.95:536:28Full Moon15Thu
16Fri12:077.212:427.36:350.16:550.65:546:26Full Moon16Fri
17Sat12:467.21:107.57:070.27:320.35:556:24Full Moon17Sat
18Sun1:257.21:377.67:380.48:070.15:566:22Full Moon18Sun
19Mon2:037.12:037.78:080.78:420.05:586:20Waning Gibbous19Mon
20Tue2:436.82:307.98:391.09:17-0.15:596:18Waning Gibbous20Tue
21Wed3:266.63:027.99:121.49:560.06:006:16Waning Gibbous21Wed
22Thu4:146.23:417.99:491.810:430.16:026:14Waning Gibbous22Thu
23Fri5:115.94:297.710:362.311:430.36:036:12Third Quarter23Fri
24Sat6:195.65:307.411:382.76:046:10Third Quarter24Sat
25Sun7:335.76:477.112:580.412:592.86:056:08Third Quarter25Sun
26Mon8:436.08:107.12:150.32:232.56:076:06Waning Crescent26Mon
27Tue9:436.69:257.43:220.03:351.96:086:04Waning Crescent27Tue
28Wed10:347.310:307.74:19-0.34:371.06:096:02Waning Crescent28Wed
29Thu11:197.911:288.05:10-0.55:320.26:116:00Waning Crescent29Thu
30Fri12:018.45:56-0.56:24-0.56:125:58New Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9439023)

Common Questions About Astoria (Port Docks), OR Tides

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What time does the tide turn (slack tide) in Astoria (Port Docks), OR today?

Slack tide in Astoria (Port Docks), OR is approximately 11:58 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 Astoria (Port Docks), OR?

Astoria (Port Docks), OR is currently in a transitional phase. Tonight's moon is 66% 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 Astoria (Port Docks), 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 Astoria (Port Docks), OR?

Tide predictions for Astoria (Port Docks), 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 Astoria (Port Docks), OR?

Tide data for Astoria (Port Docks), OR is sourced from NOAA Station #9439023. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9439023.

What is the moon phase in Astoria (Port Docks), OR tonight?

Tonight the moon over Astoria (Port Docks), OR is First Quarter (66% illuminated). This places Astoria (Port Docks), 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