Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Monday, July 27, 2026
The tide is currently rising in Portland, OR.
Next low tide : 1:00 pm (-0.1 ft)
Next high tide : in 1h 01m at 3:34 am (3.0 ft)
Sunset today : 8:45 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - May 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:443.65:322.21:380.15:578:17Full Moon1Sat
2Sun5:273.86:202.112:340.62:280.05:568:19Full Moon2Sun
3Mon6:113.87:102.01:210.53:17-0.15:548:20Waning Gibbous3Mon
4Tue6:553.78:022.02:090.54:060.05:538:21Waning Gibbous4Tue
5Wed7:423.58:592.02:560.54:550.15:518:22Waning Gibbous5Wed
6Thu8:313.310:032.03:450.65:470.25:508:24Waning Gibbous6Thu
7Fri9:242.911:152.14:350.66:400.45:498:25Third Quarter7Fri
8Sat10:242.65:310.77:340.55:478:26Third Quarter8Sat
9Sun12:242.311:31 AM2.36:400.88:260.65:468:27Third Quarter9Sun
10Mon1:172.412:432.18:120.99:130.75:458:29Waning Crescent10Mon
11Tue2:002.61:552.19:410.89:540.75:448:30Waning Crescent11Tue
12Wed2:382.82:592.010:500.610:300.85:428:31Waning Crescent12Wed
13Thu3:142.93:552.011:470.410:580.95:418:32Waning Crescent13Thu
14Fri3:493.04:442.012:380.35:408:33New Moon14Fri
15Sat4:243.25:292.01:240.15:398:35New Moon15Sat
16Sun4:593.36:122.02:070.15:388:36New Moon16Sun
17Mon5:363.36:542.012:360.92:470.15:378:37New Moon17Mon
18Tue6:143.37:362.01:230.93:250.15:368:38New Moon18Tue
19Wed6:533.38:172.02:080.94:000.25:358:39Waxing Crescent19Wed
20Thu7:353.29:012.02:520.84:340.35:348:40Waxing Crescent20Thu
21Fri8:203.09:462.03:360.85:060.45:338:41Waxing Crescent21Fri
22Sat9:092.910:352.14:200.85:370.55:328:42Waxing Crescent22Sat
23Sun10:032.711:242.35:070.86:090.55:318:43First Quarter23Sun
24Mon11:052.46:000.96:410.55:308:44First Quarter24Mon
25Tue12:142.512:132.37:060.97:160.65:298:45First Quarter25Tue
26Wed1:032.81:222.18:520.97:530.65:288:46Waxing Gibbous26Wed
27Thu1:513.12:292.010:300.78:320.65:288:47Waxing Gibbous27Thu
28Fri2:403.43:311.911:400.49:170.65:278:48Waxing Gibbous28Fri
29Sat3:273.64:271.912:380.15:268:49Waxing Gibbous29Sat
30Sun4:153.85:201.91:30-0.15:268:50Full Moon30Sun
31Mon5:013.86:101.92:18-0.25:258:51Full Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9439221)

Common Questions About Portland, OR Tides

Show All
What time does the tide turn (slack tide) in Portland, OR today?

Slack tide in Portland, OR is approximately 8:17 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 97% 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 (97% 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