Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Thursday, June 18, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 2h 28m at 4:36 pm (-0.1 ft)
Next high tide : 8:57 pm (2.3 ft)
Sunset today : 9:02 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Jun 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:163.26:352.112:221.02:270.05:248:52New Moon1Sat
2Sun5:563.37:132.11:130.93:030.15:248:53New Moon2Sun
3Mon6:363.27:512.21:590.83:360.15:238:53Waxing Crescent3Mon
4Tue7:183.18:302.22:420.84:060.25:238:54Waxing Crescent4Tue
5Wed8:023.09:112.33:250.84:340.35:238:55Waxing Crescent5Wed
6Thu8:492.99:562.44:080.84:590.45:228:56Waxing Crescent6Thu
7Fri9:402.610:432.64:530.85:250.45:228:56First Quarter7Fri
8Sat10:382.411:332.85:450.95:550.45:228:57First Quarter8Sat
9Sun11:432.26:520.96:300.55:218:58First Quarter9Sun
10Mon12:243.012:542.08:420.97:090.55:218:58First Quarter10Mon
11Tue1:163.22:041.910:150.77:530.65:218:59Waxing Gibbous11Tue
12Wed2:093.43:091.811:220.48:430.65:218:59Waxing Gibbous12Wed
13Thu3:003.64:081.912:190.15:219:00Waxing Gibbous13Thu
14Fri3:513.75:012.01:09-0.15:219:00Full Moon14Fri
15Sat4:413.75:512.11:56-0.35:219:01Full Moon15Sat
16Sun5:293.76:402.212:530.72:40-0.35:219:01Full Moon16Sun
17Mon6:173.57:282.31:520.63:23-0.35:219:02Waning Gibbous17Mon
18Tue7:043.38:172.42:450.64:03-0.25:219:02Waning Gibbous18Tue
19Wed7:533.09:082.53:350.64:420.05:219:02Waning Gibbous19Wed
20Thu8:432.79:592.64:250.75:170.25:219:03Waning Gibbous20Thu
21Fri9:372.410:492.65:190.85:480.45:219:03Third Quarter21Fri
22Sat10:382.111:382.76:230.96:070.55:229:03Third Quarter22Sat
23Sun11:481.97:470.96:130.75:229:03Third Quarter23Sun
24Mon12:252.81:061.89:110.86:370.75:229:03Waning Crescent24Mon
25Tue1:112.92:231.810:180.67:180.85:239:03Waning Crescent25Tue
26Wed1:563.03:291.811:130.48:070.95:239:03Waning Crescent26Wed
27Thu2:413.04:211.912:020.25:249:03Waning Crescent27Thu
28Fri3:263.15:052.012:460.05:249:03Waning Crescent28Fri
29Sat4:093.15:432.11:260.05:259:03New Moon29Sat
30Sun4:523.26:162.12:03-0.15:259:03New Moon30Sun
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 6:46 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 19% 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 (19% 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