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 6h 20m 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 - Aug 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:013.23:071.510:590.37:590.95:568:38Waxing Gibbous1Wed
2Thu2:023.33:561.711:440.19:121.05:578:36Waxing Gibbous2Thu
3Fri3:003.34:372.012:26-0.15:588:35Waxing Gibbous3Fri
4Sat3:563.45:162.21:06-0.25:598:34Full Moon4Sat
5Sun4:493.45:552.512:170.81:43-0.36:008:32Full Moon5Sun
6Mon5:383.46:352.81:180.62:18-0.36:028:31Full Moon6Mon
7Tue6:263.27:153.02:130.52:51-0.26:038:29Waning Gibbous7Tue
8Wed7:143.07:583.23:060.43:22-0.26:048:28Waning Gibbous8Wed
9Thu8:032.78:413.33:590.53:500.06:058:26Waning Gibbous9Thu
10Fri8:542.39:273.34:560.64:150.16:068:25Third Quarter10Fri
11Sat9:521.910:153.26:030.74:380.36:088:23Third Quarter11Sat
12Sun11:011.711:063.17:240.75:080.56:098:22Third Quarter12Sun
13Mon12:271.58:440.65:470.76:108:20Third Quarter13Mon
14Tue12:012.92:051.69:490.46:370.96:118:18Waning Crescent14Tue
15Wed1:002.83:151.810:430.27:401.06:128:17Waning Crescent15Wed
16Thu2:002.74:022.011:290.19:501.06:148:15Waning Crescent16Thu
17Fri2:582.74:392.212:100.16:158:13Waning Crescent17Fri
18Sat3:502.85:102.412:470.06:168:12New Moon18Sat
19Sun4:372.85:382.512:120.81:190.16:178:10New Moon19Sun
20Mon5:202.86:072.71:000.71:460.16:188:08New Moon20Mon
21Tue6:012.86:362.91:430.62:070.26:208:07New Moon21Tue
22Wed6:412.77:073.02:240.62:250.26:218:05Waxing Crescent22Wed
23Thu7:212.57:403.23:040.62:430.36:228:03Waxing Crescent23Thu
24Fri8:022.38:163.33:450.63:060.36:238:01Waxing Crescent24Fri
25Sat8:452.08:553.44:300.73:370.46:258:00Waxing Crescent25Sat
26Sun9:351.89:383.45:260.84:120.56:267:58First Quarter26Sun
27Mon10:381.510:283.36:510.94:540.66:277:56First Quarter27Mon
28Tue11:581.411:253.28:280.85:420.86:287:54First Quarter28Tue
29Wed1:291.49:360.66:380.96:297:52First Quarter29Wed
30Thu12:303.12:441.610:270.37:471.06:317:51Waxing Gibbous30Thu
31Fri1:373.13:301.911:110.19:241.06:327:49Waxing Gibbous31Fri
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