Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 5h 20m at 3:11 am (0.6 ft)
Next high tide : 7:25 am (3.0 ft)
Sunset today : 8:55 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Jan 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:552.24:293.412:570.111:20 AM0.67:504:38New Moon1Thu
2Fri5:312.25:083.41:330.212:120.67:504:39New Moon2Fri
3Sat6:072.25:483.32:060.212:590.77:504:40Waxing Crescent3Sat
4Sun6:432.26:303.22:360.31:440.77:504:41Waxing Crescent4Sun
5Mon7:222.37:133.03:030.32:280.87:504:42Waxing Crescent5Mon
6Tue8:052.38:002.83:290.43:140.97:504:43Waxing Crescent6Tue
7Wed8:522.48:542.53:560.44:051.07:494:44First Quarter7Wed
8Thu9:432.69:552.34:270.45:101.17:494:45First Quarter8Thu
9Fri10:382.711:052.15:040.46:561.17:494:46First Quarter9Fri
10Sat11:352.95:460.48:320.97:484:47First Quarter10Sat
11Sun12:161.912:313.26:330.49:400.67:484:48Waxing Gibbous11Sun
12Mon1:231.91:263.47:250.510:360.37:484:50Waxing Gibbous12Mon
13Tue2:222.02:193.68:280.511:260.17:474:51Waxing Gibbous13Tue
14Wed3:152.13:103.79:530.57:464:52Full Moon14Wed
15Thu4:042.23:593.712:13-0.111:11 AM0.57:464:53Full Moon15Thu
16Fri4:512.34:463.712:58-0.212:140.57:454:55Full Moon16Fri
17Sat5:362.45:343.51:40-0.21:100.57:454:56Waning Gibbous17Sat
18Sun6:222.46:213.32:21-0.22:030.57:444:57Waning Gibbous18Sun
19Mon7:092.57:103.02:59-0.12:550.67:434:59Waning Gibbous19Mon
20Tue7:572.58:022.63:360.13:500.87:425:00Waning Gibbous20Tue
21Wed8:472.59:002.34:100.24:530.97:425:01Third Quarter21Wed
22Thu9:392.510:072.14:390.36:121.07:415:03Third Quarter22Thu
23Fri10:332.611:252.05:040.57:340.97:405:04Third Quarter23Fri
24Sat11:272.65:310.58:420.87:395:06Third Quarter24Sat
25Sun12:421.912:192.76:090.69:380.67:385:07Waning Crescent25Sun
26Mon1:472.01:102.86:560.610:270.47:375:08Waning Crescent26Mon
27Tue2:382.11:582.97:500.611:120.37:365:10Waning Crescent27Tue
28Wed3:212.22:433.08:530.611:520.27:355:11Waning Crescent28Wed
29Thu3:582.23:273.110:080.67:345:13New Moon29Thu
30Fri4:332.34:093.212:300.211:14 AM0.67:335:14New Moon30Fri
31Sat5:062.34:503.21:040.212:080.67:325:16New Moon31Sat
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 5:18 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 8% 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 Waxing Crescent (8% 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