Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Portland, OR.
Next low tide (tomorrow) : 7:30 am (0.9 ft)
Next high tide : in 4h 30m at 11:36 pm (2.7 ft)
Sunset today : 9:03 pm
Sunrise tomorrow : 5:21 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Sep 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:362.95:422.512:180.71:30-0.16:337:47Full Moon1Tue
2Wed5:182.96:182.71:060.72:000.16:347:45Full Moon2Wed
3Thu6:062.86:482.81:480.62:300.26:357:44Full Moon3Thu
4Fri6:422.77:182.92:300.62:480.36:367:42Waning Gibbous4Fri
5Sat7:242.57:483.03:060.62:540.46:377:40Waning Gibbous5Sat
6Sun8:062.38:243.13:480.73:120.46:397:38Waning Gibbous6Sun
7Mon8:542.09:003.14:300.73:360.56:407:36Waning Gibbous7Mon
8Tue9:481.89:483.15:180.84:180.66:417:34Third Quarter8Tue
9Wed11:001.510:363.06:480.95:000.76:427:32Third Quarter9Wed
10Thu2:241.48:300.85:480.96:447:30Third Quarter10Thu
11Fri3:241.69:420.56:481.06:457:28Third Quarter11Fri
12Sat12:302.94:001.710:300.37:541.16:467:26Waning Crescent12Sat
13Sun1:362.94:061.911:120.19:181.16:477:24Waning Crescent13Sun
14Mon2:423.04:182.111:480.010:540.96:487:23Waning Crescent14Mon
15Tue3:363.14:482.412:24-0.16:507:21Waning Crescent15Tue
16Wed4:303.25:242.712:000.81:00-0.16:517:19New Moon16Wed
17Thu5:183.26:003.01:000.61:30-0.16:527:17New Moon17Thu
18Fri6:063.16:363.31:540.52:06-0.16:537:15New Moon18Fri
19Sat6:482.97:183.52:420.42:36-0.16:557:13Waxing Crescent19Sat
20Sun7:362.68:003.63:360.43:000.06:567:11Waxing Crescent20Sun
21Mon8:242.28:423.64:300.53:300.26:577:09Waxing Crescent21Mon
22Tue9:241.99:303.55:360.54:000.36:587:07First Quarter22Tue
23Wed10:301.610:183.26:540.64:420.56:597:05First Quarter23Wed
24Thu12:001.58:120.55:300.77:017:03First Quarter24Thu
25Fri2:001.79:180.36:300.97:027:01First Quarter25Fri
26Sat12:242.73:061.910:120.28:181.07:036:59Waxing Gibbous26Sat
27Sun1:302.63:482.211:000.110:060.97:046:57Waxing Gibbous27Sun
28Mon2:362.64:182.411:360.011:120.87:066:55Waxing Gibbous28Mon
29Tue3:362.64:482.612:180.17:076:54Waxing Gibbous29Tue
30Wed4:242.75:122.812:060.612:480.17:086:52Full Moon30Wed
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 3:33 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Portland, OR in a neap tide cycle, so tidal ranges are near their weekly minimum 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