Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 59m at 4:15 am (0.8 ft)
Next high tide : 8:40 am (2.5 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Mar 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:132.33:482.912:000.310:53 AM0.66:475:58New Moon1Sat
2Sun4:422.44:312.912:320.311:50 AM0.66:455:59New Moon2Sun
3Mon5:112.55:122.812:590.312:400.56:436:01New Moon3Mon
4Tue5:422.75:522.71:230.31:260.56:416:02New Moon4Tue
5Wed6:152.96:332.61:440.42:100.66:396:03Waxing Crescent5Wed
6Thu6:513.17:162.42:060.42:550.76:386:05Waxing Crescent6Thu
7Fri7:303.28:032.12:300.43:450.76:366:06Waxing Crescent7Fri
8Sat8:143.38:581.82:590.44:480.86:346:07Waxing Crescent8Sat
9Sun10:033.411:051.64:330.57:180.97:327:09First Quarter9Sun
10Mon10:593.35:140.58:460.77:307:10First Quarter10Mon
11Tue12:221.512:013.26:030.69:520.67:287:12First Quarter11Tue
12Wed1:371.61:083.17:010.710:460.47:267:13Waxing Gibbous12Wed
13Thu2:421.82:163.18:160.811:320.27:247:14Waxing Gibbous13Thu
14Fri3:352.03:193.110:150.77:237:16Waxing Gibbous14Fri
15Sat4:222.34:173.112:150.111:43 AM0.67:217:17Full Moon15Sat
16Sun5:042.65:093.012:550.012:490.47:197:18Full Moon16Sun
17Mon5:452.85:572.91:330.01:460.37:177:19Full Moon17Mon
18Tue6:243.06:442.72:070.12:380.37:157:21Full Moon18Tue
19Wed7:033.17:302.52:380.13:290.47:137:22Waning Gibbous19Wed
20Thu7:413.18:192.23:050.24:190.57:117:23Waning Gibbous20Thu
21Fri8:203.19:142.03:280.35:130.67:097:25Waning Gibbous21Fri
22Sat9:003.010:191.93:520.56:130.77:077:26Third Quarter22Sat
23Sun9:442.911:461.84:220.67:240.87:057:27Third Quarter23Sun
24Mon10:332.75:020.78:340.87:047:29Third Quarter24Mon
25Tue1:161.911:30 AM2.55:500.79:330.77:027:30Third Quarter25Tue
26Wed2:152.012:362.46:450.810:220.67:007:31Third Quarter26Wed
27Thu3:012.11:452.47:490.811:040.66:587:33Waning Crescent27Thu
28Fri3:382.22:502.59:060.811:410.56:567:34Waning Crescent28Fri
29Sat4:082.43:452.610:390.76:547:35Waning Crescent29Sat
30Sun4:352.54:322.612:140.511:50 AM0.66:527:37Waning Crescent30Sun
31Mon5:032.75:152.612:440.512:480.56:507:38New Moon31Mon
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 6:27 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 transitional phase. Tonight's moon is 74% 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 shifting between spring and neap.

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 (74% illuminated). This places Portland, OR in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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