Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Portland, OR.
Next low tide (tomorrow) : in 7h 19m at 4:15 am (0.8 ft)
Next high tide (tomorrow) : 8:40 am (2.5 ft)
Sunset today : 8:37 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Jan 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:282.18:203.04:050.13:291.07:504:37Waning Gibbous1Sun
2Mon9:242.39:212.64:390.24:361.07:504:38Third Quarter2Mon
3Tue10:222.610:302.35:130.26:131.17:504:39Third Quarter3Tue
4Wed11:202.911:442.05:470.27:560.97:504:40Third Quarter4Wed
5Thu12:153.16:220.39:140.77:504:41Waning Crescent5Thu
6Fri12:571.91:073.37:000.310:170.47:504:42Waning Crescent6Fri
7Sat2:031.81:563.47:430.411:110.17:504:43Waning Crescent7Sat
8Sun3:001.82:423.48:330.57:504:44Waning Crescent8Sun
9Mon3:511.93:273.412:000.09:47 AM0.67:494:45New Moon9Mon
10Tue4:372.04:103.312:460.011:08 AM0.77:494:47New Moon10Tue
11Wed5:212.04:523.21:280.012:070.77:494:48New Moon11Wed
12Thu6:022.05:343.12:080.112:560.87:484:49Waxing Crescent12Thu
13Fri6:432.16:173.02:440.21:390.87:484:50Waxing Crescent13Fri
14Sat7:242.17:022.83:150.32:190.87:474:51Waxing Crescent14Sat
15Sun8:062.27:502.63:390.42:590.97:474:53Waxing Crescent15Sun
16Mon8:512.38:432.33:540.53:451.07:464:54First Quarter16Mon
17Tue9:372.49:462.04:100.54:421.07:454:55First Quarter17Tue
18Wed10:252.611:021.84:370.56:261.17:454:57First Quarter18Wed
19Thu11:142.75:140.58:210.97:444:58First Quarter19Thu
20Fri12:251.712:042.95:570.59:300.77:434:59First Quarter20Fri
21Sat1:391.712:533.16:440.610:240.47:435:01Waxing Gibbous21Sat
22Sun2:341.71:423.27:340.711:110.27:425:02Waxing Gibbous22Sun
23Mon3:171.72:303.48:290.711:540.17:415:03Waxing Gibbous23Mon
24Tue3:551.83:173.59:350.87:405:05Full Moon24Tue
25Wed4:311.84:043.612:35-0.110:54 AM0.87:395:06Full Moon25Wed
26Thu5:081.94:503.61:13-0.112:010.87:385:08Full Moon26Thu
27Fri5:472.15:373.61:48-0.112:570.77:375:09Full Moon27Fri
28Sat6:282.36:243.42:22-0.11:490.77:365:10Waning Gibbous28Sat
29Sun7:112.47:143.12:54-0.12:410.77:355:12Waning Gibbous29Sun
30Mon7:592.68:062.83:240.03:380.87:345:13Waning Gibbous30Mon
31Tue8:492.89:052.43:520.14:470.97:335:15Third Quarter31Tue
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 6:27 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 spring phase. Tonight's moon is 83% 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 Gibbous (83% 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