Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Portland, OR.
Next low tide (tomorrow) : 4:15 am (0.8 ft)
Next high tide : in 4h 34m at 8:38 pm (3.0 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 - Mar 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:472.77:072.52:230.22:570.66:465:58Waning Gibbous1Fri
2Sat7:242.87:572.22:420.33:450.86:446:00Waning Gibbous2Sat
3Sun8:032.88:552.02:580.44:390.96:436:01Waning Gibbous3Sun
4Mon8:442.810:081.83:210.55:510.96:416:02Third Quarter4Mon
5Tue9:302.811:441.83:560.57:160.96:396:04Third Quarter5Tue
6Wed10:222.74:400.68:250.86:376:05Third Quarter6Wed
7Thu1:061.811:20 AM2.75:310.79:200.66:356:06Third Quarter7Thu
8Fri2:021.912:232.76:280.710:070.56:336:08Waning Crescent8Fri
9Sat2:452.01:252.77:320.810:480.46:326:09Waning Crescent9Sat
10Sun4:172.13:222.89:470.87:307:10Waning Crescent10Sun
11Mon4:432.24:122.912:250.311:11 AM0.77:287:12Waning Crescent11Mon
12Tue5:102.34:582.912:590.312:190.67:267:13New Moon12Tue
13Wed5:402.55:422.91:300.21:140.67:247:15New Moon13Wed
14Thu6:132.76:252.91:580.22:050.57:227:16New Moon14Thu
15Fri6:493.07:082.72:240.22:530.57:207:17Waxing Crescent15Fri
16Sat7:273.27:532.52:490.33:420.57:187:18Waxing Crescent16Sat
17Sun8:093.48:432.23:150.34:340.67:167:20Waxing Crescent17Sun
18Mon8:543.59:382.03:440.35:360.77:157:21Waxing Crescent18Mon
19Tue9:433.410:431.84:170.46:530.77:137:22First Quarter19Tue
20Wed10:383.311:581.74:580.58:140.77:117:24First Quarter20Wed
21Thu11:403.15:470.69:240.57:097:25First Quarter21Thu
22Fri1:161.712:473.06:480.710:210.47:077:26Waxing Gibbous22Fri
23Sat2:251.91:562.88:150.811:110.37:057:28Waxing Gibbous23Sat
24Sun3:202.13:012.810:160.711:550.27:037:29Waxing Gibbous24Sun
25Mon4:062.33:592.711:350.67:017:30Waxing Gibbous25Mon
26Tue4:462.54:512.712:360.212:360.56:597:32Full Moon26Tue
27Wed5:232.75:372.61:130.21:290.46:577:33Full Moon27Wed
28Thu5:592.96:222.51:460.32:180.46:567:34Full Moon28Thu
29Fri6:333.07:062.42:140.43:030.46:547:36Full Moon29Fri
30Sat7:073.07:522.32:350.53:470.56:527:37Waning Gibbous30Sat
31Sun7:433.18:412.12:540.54:300.66:507:38Waning Gibbous31Sun
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 12:26 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