Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 7h 21m at 1:36 pm (-0.1 ft)
Next high tide : 6:05 pm (2.2 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 5:50 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Sep 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:291.711:193.27:510.65:310.66:327:48First Quarter1Wed
2Thu12:551.79:030.46:290.76:337:46First Quarter2Thu
3Fri12:223.02:211.810:030.27:590.96:357:44Waxing Gibbous3Fri
4Sat1:282.83:222.110:540.19:570.96:367:42Waxing Gibbous4Sat
5Sun2:312.84:062.311:390.011:110.76:377:40Waxing Gibbous5Sun
6Mon3:282.84:422.512:20-0.16:387:38Full Moon6Mon
7Tue4:192.85:152.712:100.612:580.06:397:37Full Moon7Tue
8Wed5:052.85:472.91:000.51:310.16:417:35Full Moon8Wed
9Thu5:472.76:193.01:450.51:580.26:427:33Full Moon9Thu
10Fri6:292.66:513.12:270.52:180.36:437:31Waning Gibbous10Fri
11Sat7:102.57:253.23:070.52:310.46:447:29Waning Gibbous11Sat
12Sun7:532.38:003.23:460.62:480.46:467:27Waning Gibbous12Sun
13Mon8:382.18:373.24:260.73:180.56:477:25Waning Gibbous13Mon
14Tue9:291.89:193.15:130.83:560.66:487:23Third Quarter14Tue
15Wed10:311.610:073.06:190.84:420.76:497:21Third Quarter15Wed
16Thu1:571.57:460.85:330.86:507:19Third Quarter16Thu
17Fri2:521.78:580.76:331.06:527:17Third Quarter17Fri
18Sat12:082.73:271.89:500.57:441.06:537:15Waning Crescent18Sat
19Sun1:162.73:202.010:330.39:171.06:547:13Waning Crescent19Sun
20Mon2:212.73:432.311:120.210:460.96:557:12Waning Crescent20Mon
21Tue3:182.84:152.611:470.111:510.76:577:10Waning Crescent21Tue
22Wed4:102.94:503.012:220.06:587:08New Moon22Wed
23Thu4:572.95:273.312:480.512:550.06:597:06New Moon23Thu
24Fri5:432.96:063.61:400.41:280.07:007:04New Moon24Fri
25Sat6:292.76:463.72:300.32:000.07:017:02Waxing Crescent25Sat
26Sun7:152.57:283.83:210.32:330.17:037:00Waxing Crescent26Sun
27Mon8:042.38:123.74:130.33:080.27:046:58Waxing Crescent27Mon
28Tue8:582.08:593.55:110.43:460.47:056:56First Quarter28Tue
29Wed10:011.89:513.26:160.54:290.57:066:54First Quarter29Wed
30Thu11:181.710:502.97:280.55:220.87:086:52First Quarter30Thu
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 3:50 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 99% 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 Full Moon (99% 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