Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 2h 13m at 1:18 am (0.8 ft)
Next high tide : 5:50 am (3.1 ft)
Sunset today : 8:42 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Mar 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:452.88:262.33:060.34:240.76:465:58Waning Gibbous1Tue
2Wed8:302.89:292.13:300.45:280.86:446:00Third Quarter2Wed
3Thu9:182.710:442.03:570.56:400.96:436:01Third Quarter3Thu
4Fri10:112.64:330.67:500.86:416:02Third Quarter4Fri
5Sat12:062.011:09 AM2.55:180.68:480.76:396:04Third Quarter5Sat
6Sun1:122.112:102.56:100.79:380.66:376:05Waning Crescent6Sun
7Mon2:022.21:102.67:110.710:220.56:356:06Waning Crescent7Mon
8Tue2:422.32:062.78:290.711:020.46:336:08Waning Crescent8Tue
9Wed3:162.42:562.79:590.611:370.46:326:09Waning Crescent9Wed
10Thu3:472.53:412.811:040.56:306:10New Moon10Thu
11Fri4:192.64:242.812:100.411:59 AM0.56:286:12New Moon11Fri
12Sat4:512.75:052.812:390.412:470.46:266:13New Moon12Sat
13Sun6:252.96:462.71:070.42:320.47:247:14New Moon13Sun
14Mon7:013.17:292.62:340.43:160.57:227:16Waxing Crescent14Mon
15Tue7:403.28:132.53:020.44:010.57:207:17Waxing Crescent15Tue
16Wed8:223.39:032.33:320.44:490.67:187:18Waxing Crescent16Wed
17Thu9:093.39:582.14:060.45:450.77:177:20Waxing Crescent17Thu
18Fri10:013.311:022.04:440.56:560.87:157:21First Quarter18Fri
19Sat10:593.25:290.58:140.77:137:22First Quarter19Sat
20Sun12:112.012:023.16:220.69:210.67:117:24First Quarter20Sun
21Mon1:182.01:093.07:280.710:180.57:097:25Waxing Gibbous21Mon
22Tue2:202.22:152.99:110.711:090.37:077:26Waxing Gibbous22Tue
23Wed3:142.43:162.910:470.611:560.27:057:28Waxing Gibbous23Wed
24Thu4:032.74:122.911:580.47:037:29Full Moon24Thu
25Fri4:472.95:042.812:390.212:580.37:017:30Full Moon25Fri
26Sat5:293.05:522.81:200.21:510.26:597:32Full Moon26Sat
27Sun6:093.16:392.61:580.22:410.26:587:33Full Moon27Sun
28Mon6:483.17:262.52:320.33:290.36:567:34Waning Gibbous28Mon
29Tue7:283.18:152.33:030.44:160.46:547:35Waning Gibbous29Tue
30Wed8:083.09:092.23:300.55:040.56:527:37Waning Gibbous30Wed
31Thu8:502.910:092.13:560.55:560.76:507:38Waning Gibbous31Thu
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 3:34 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 100% 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 (100% 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