Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 3h 40m at 8:35 pm (0.8 ft)
Next high tide (tomorrow) : 3:13 am (3.6 ft)
Sunset today : 8:59 pm
Sunrise tomorrow : 5:33 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Jun 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:423.09:112.23:010.84:360.45:258:51Waning Gibbous1Sat
2Sun8:272.89:542.23:440.75:000.55:248:52Waning Gibbous2Sun
3Mon9:162.610:392.44:280.75:220.55:248:53Third Quarter3Mon
4Tue10:112.411:252.55:160.85:470.55:238:54Third Quarter4Tue
5Wed11:122.26:110.96:180.65:238:54Third Quarter5Wed
6Thu12:122.712:202.07:230.96:530.65:228:55Third Quarter6Thu
7Fri12:592.91:301.89:180.87:330.65:228:56Waning Crescent7Fri
8Sat1:463.12:361.810:440.68:150.75:228:57Waning Crescent8Sat
9Sun2:343.43:361.811:470.39:020.85:218:57Waning Crescent9Sun
10Mon3:223.64:311.812:400.15:218:58Waning Crescent10Mon
11Tue4:103.75:201.91:29-0.15:218:59New Moon11Tue
12Wed4:583.86:081.92:14-0.35:218:59New Moon12Wed
13Thu5:463.76:552.11:050.82:57-0.35:219:00New Moon13Thu
14Fri6:343.67:432.22:030.73:38-0.35:219:00Waxing Crescent14Fri
15Sat7:233.48:332.32:570.64:18-0.25:219:01Waxing Crescent15Sat
16Sun8:143.19:262.53:490.64:560.05:219:01Waxing Crescent16Sun
17Mon9:072.710:202.64:430.75:320.25:219:01First Quarter17Mon
18Tue10:062.411:132.75:440.86:060.35:219:02First Quarter18Tue
19Wed11:122.17:020.86:320.55:219:02First Quarter19Wed
20Thu12:042.812:261.98:320.86:490.65:219:02First Quarter20Thu
21Fri12:522.91:431.89:500.67:100.75:219:03Waxing Gibbous21Fri
22Sat1:383.02:541.810:520.47:460.85:219:03Waxing Gibbous22Sat
23Sun2:233.13:541.811:450.28:320.95:229:03Waxing Gibbous23Sun
24Mon3:073.14:461.912:330.15:229:03Waxing Gibbous24Mon
25Tue3:503.15:302.01:160.05:229:03Full Moon25Tue
26Wed4:333.26:102.11:56-0.15:239:03Full Moon26Wed
27Thu5:153.26:462.112:251.02:320.05:239:03Full Moon27Thu
28Fri5:573.17:212.21:190.93:050.15:249:03Full Moon28Fri
29Sat6:393.17:552.32:060.83:320.25:249:03Waning Gibbous29Sat
30Sun7:223.08:302.42:490.73:550.25:259:03Waning Gibbous30Sun
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 11:54 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 Portland, OR?

Portland, OR is currently in a spring phase. Tonight's moon is 10% 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 maximum.

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 Waning Crescent (10% illuminated). This places Portland, OR in a spring tide cycle, so tidal ranges are near their weekly maximum 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