Tides Today & Tomorrow in Astoria, OR

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Astoria, OR.
Next low tide (tomorrow) : in 6h 19m at 12:52 am (0.6 ft)
Next high tide (tomorrow) : 7:09 am (5.7 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:18 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9439040
Common Questions About Tides

Astoria, OR Tides - Aug 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:046.96:43-0.76:222.75:578:45Waxing Gibbous1Wed
2Thu12:168.41:497.17:27-0.97:102.65:588:43Full Moon2Thu
3Fri12:598.42:297.38:06-0.97:552.45:598:42Full Moon3Fri
4Sat1:398.43:057.38:42-0.98:362.36:018:41Full Moon4Sat
5Sun2:188.23:397.39:14-0.89:152.16:028:39Full Moon5Sun
6Mon2:558.04:097.39:43-0.69:521.96:038:38Waning Gibbous6Mon
7Tue3:327.84:377.310:11-0.410:281.76:048:36Waning Gibbous7Tue
8Wed4:097.45:047.410:38-0.111:051.66:058:35Waning Gibbous8Wed
9Thu4:517.05:317.511:070.411:471.56:078:33Waning Gibbous9Thu
10Fri5:386.56:037.611:390.96:088:32Third Quarter10Fri
11Sat6:376.06:427.712:361.412:191.56:098:30Third Quarter11Sat
12Sun7:515.67:317.81:381.21:102.26:108:29Third Quarter12Sun
13Mon9:165.58:307.92:520.92:172.76:128:27Third Quarter13Mon
14Tue10:355.79:368.24:050.43:343.06:138:25Waning Crescent14Tue
15Wed11:426.210:428.55:11-0.24:462.96:148:24Waning Crescent15Wed
16Thu12:376.76:08-0.95:502.66:158:22Waning Crescent16Thu
17Fri1:257.27:00-1.46:492.16:178:20New Moon17Fri
18Sat12:419.22:097.67:48-1.87:441.66:188:19New Moon18Sat
19Sun1:369.42:528.08:34-1.98:371.06:198:17New Moon19Sun
20Mon2:299.33:338.39:17-1.89:280.56:208:15Waxing Crescent20Mon
21Tue3:219.04:138.59:58-1.510:190.26:228:13Waxing Crescent21Tue
22Wed4:148.44:548.510:39-0.911:100.16:238:12Waxing Crescent22Wed
23Thu5:097.75:368.511:20-0.16:248:10Waxing Crescent23Thu
24Fri6:097.06:208.312:050.112:040.86:268:08First Quarter24Fri
25Sat7:166.47:098.01:050.312:541.76:278:06First Quarter25Sat
26Sun8:306.08:057.72:130.41:542.46:288:04First Quarter26Sun
27Mon9:476.09:087.63:250.43:042.96:298:03Waxing Gibbous27Mon
28Tue10:576.210:127.64:330.24:133.06:318:01Waxing Gibbous28Tue
29Wed11:546.611:107.75:31-0.15:152.86:327:59Waxing Gibbous29Wed
30Thu12:417.06:19-0.46:082.56:337:57Waxing Gibbous30Thu
31Fri12:007.81:217.27:01-0.56:542.16:347:55Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9439040)

Common Questions About Astoria, OR Tides

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

Slack tide in Astoria, OR is approximately 4:00 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, OR?

Astoria, 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 Astoria, 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, OR?

Tide predictions for Astoria, 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, OR?

Tide data for Astoria, OR is sourced from NOAA Station #9439040. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9439040.

What is the moon phase in Astoria, OR tonight?

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