Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 3h 44m at 8:14 am (0.9 ft)
Next high tide : 11:42 am (1.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:01 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Jul 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:542.93:171.911:030.48:120.95:259:03Waning Crescent1Wed
2Thu2:403.04:102.011:520.29:130.95:269:03Waning Crescent2Thu
3Fri3:243.14:532.112:360.15:269:02Waning Crescent3Fri
4Sat4:073.25:312.11:170.05:279:02New Moon4Sat
5Sun4:493.26:062.21:55-0.15:279:02New Moon5Sun
6Mon5:313.26:392.312:560.92:29-0.15:289:01New Moon6Mon
7Tue6:123.27:142.31:450.83:010.05:299:01New Moon7Tue
8Wed6:543.27:502.52:290.83:300.05:309:01Waxing Crescent8Wed
9Thu7:383.18:302.63:120.73:570.15:309:00Waxing Crescent9Thu
10Fri8:242.99:122.83:550.84:220.25:319:00Waxing Crescent10Fri
11Sat9:142.79:592.94:400.84:480.25:328:59First Quarter11Sat
12Sun10:102.410:503.15:330.95:170.35:338:59First Quarter12Sun
13Mon11:142.111:443.26:520.95:530.45:348:58First Quarter13Mon
14Tue12:261.98:360.86:350.45:358:57First Quarter14Tue
15Wed12:413.31:391.89:580.67:250.55:368:57Waxing Gibbous15Wed
16Thu1:393.42:491.911:020.38:270.75:368:56Waxing Gibbous16Thu
17Fri2:353.53:502.011:560.010:130.75:378:55Waxing Gibbous17Fri
18Sat3:303.54:442.112:45-0.25:388:54Full Moon18Sat
19Sun4:223.55:322.31:31-0.35:398:53Full Moon19Sun
20Mon5:113.46:182.412:510.62:13-0.35:408:53Full Moon20Mon
21Tue5:583.37:012.51:460.62:53-0.35:418:52Full Moon21Tue
22Wed6:443.17:432.62:360.53:30-0.15:428:51Waning Gibbous22Wed
23Thu7:302.98:252.73:230.64:030.15:438:50Waning Gibbous23Thu
24Fri8:162.69:082.74:080.74:290.35:458:49Waning Gibbous24Fri
25Sat9:062.39:512.74:550.84:450.45:468:48Third Quarter25Sat
26Sun10:032.110:372.85:490.94:540.55:478:47Third Quarter26Sun
27Mon11:091.911:252.87:040.95:200.65:488:45Third Quarter27Mon
28Tue12:301.78:330.86:000.75:498:44Third Quarter28Tue
29Wed12:162.82:021.79:440.76:500.85:508:43Waning Crescent29Wed
30Thu1:092.83:151.810:400.47:460.95:518:42Waning Crescent30Thu
31Fri2:022.94:052.011:270.28:530.95:528:41Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9439221)

Common Questions About Portland, OR Tides

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

Slack tide in Portland, OR is approximately 9:58 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 Portland, OR?

Portland, OR is currently in a neap phase. Tonight's moon is 42% 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 near their weekly minimum.

What datum are Portland, 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 Portland, OR?

Tide predictions for Portland, 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 Portland, OR?

Tide data for Portland, OR is sourced from NOAA Station #9439221. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9439221.

What is the moon phase in Portland, OR tonight?

Tonight the moon over Portland, OR is Third Quarter (42% illuminated). This places Portland, OR in a neap tide cycle, so tidal ranges are near their weekly minimum 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