Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 6h 39m at 2:08 pm (-0.1 ft)
Next high tide : 6:30 pm (2.3 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 - Aug 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:002.87:452.82:580.63:230.15:558:38Waxing Crescent1Fri
2Sat7:452.68:232.83:420.63:450.25:568:37Waxing Crescent2Sat
3Sun8:322.49:022.94:260.73:580.35:578:36Waxing Crescent3Sun
4Mon9:242.19:422.95:130.84:120.45:598:34First Quarter4Mon
5Tue10:251.910:272.96:150.94:410.56:008:33First Quarter5Tue
6Wed11:421.711:152.97:430.95:220.66:018:31First Quarter6Wed
7Thu1:341.69:050.76:100.76:028:30First Quarter7Thu
8Fri12:092.93:001.710:050.57:060.86:038:28Waxing Gibbous8Fri
9Sat1:072.93:511.910:550.38:090.96:058:27Waxing Gibbous9Sat
10Sun2:052.94:292.011:380.29:240.96:068:25Waxing Gibbous10Sun
11Mon3:002.94:522.112:170.06:078:24Waxing Gibbous11Mon
12Tue3:513.05:162.312:530.06:088:22Full Moon12Tue
13Wed4:383.15:432.512:040.81:26-0.16:098:21Full Moon13Wed
14Thu5:223.16:142.71:000.71:56-0.16:118:19Full Moon14Thu
15Fri6:063.16:492.91:500.62:250.06:128:18Full Moon15Fri
16Sat6:493.07:263.22:370.62:510.06:138:16Waning Gibbous16Sat
17Sun7:342.88:063.33:240.63:160.16:148:14Waning Gibbous17Sun
18Mon8:222.58:503.54:130.63:410.16:158:13Waning Gibbous18Mon
19Tue9:142.29:383.55:100.74:100.26:178:11Third Quarter19Tue
20Wed10:141.910:313.46:230.74:450.36:188:09Third Quarter20Wed
21Thu11:251.711:293.37:490.75:290.56:198:07Third Quarter21Thu
22Fri12:461.69:070.56:230.76:208:06Third Quarter22Fri
23Sat12:323.22:071.710:090.37:390.86:228:04Waning Crescent23Sat
24Sun1:373.13:142.011:010.19:530.96:238:02Waning Crescent24Sun
25Mon2:403.04:052.211:48-0.111:160.76:248:00Waning Crescent25Mon
26Tue3:373.04:472.512:30-0.16:257:59New Moon26Tue
27Wed4:292.95:242.712:180.61:09-0.16:267:57New Moon27Wed
28Thu5:152.95:592.81:110.51:440.06:287:55New Moon28Thu
29Fri5:592.86:333.01:590.52:140.16:297:53New Moon29Fri
30Sat6:422.67:073.02:440.52:380.26:307:51Waxing Crescent30Sat
31Sun7:252.57:423.13:260.62:530.36:317:50Waxing Crescent31Sun
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 4:19 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 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