Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Portland, OR.
Next low tide (tomorrow) : in 5h 38m at 1:28 am (0.9 ft)
Next high tide (tomorrow) : 6:06 am (3.2 ft)
Sunset today : 9:03 pm
Sunrise tomorrow : 5:25 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Sep 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:342.84:162.211:47-0.111:090.86:327:48Waxing Gibbous1Sun
2Mon3:332.84:522.512:28-0.16:337:46Full Moon2Mon
3Tue4:252.85:252.712:110.61:04-0.16:347:45Full Moon3Tue
4Wed5:112.85:572.91:030.51:370.06:367:43Full Moon4Wed
5Thu5:542.76:283.01:500.52:030.26:377:41Full Moon5Thu
6Fri6:352.66:593.12:340.52:220.36:387:39Waning Gibbous6Fri
7Sat7:172.47:323.23:150.52:330.46:397:37Waning Gibbous7Sat
8Sun8:002.28:063.23:560.62:480.46:417:35Waning Gibbous8Sun
9Mon8:461.98:433.24:390.73:170.56:427:33Waning Gibbous9Mon
10Tue9:411.79:243.15:330.83:550.66:437:31Third Quarter10Tue
11Wed10:541.510:123.06:520.84:410.76:447:29Third Quarter11Wed
12Thu2:101.58:190.75:340.96:457:27Third Quarter12Thu
13Fri3:031.79:220.66:351.06:477:25Third Quarter13Fri
14Sat12:152.73:441.910:100.47:471.16:487:24Waning Crescent14Sat
15Sun1:252.74:032.010:490.39:181.06:497:22Waning Crescent15Sun
16Mon2:302.74:072.311:250.110:470.96:507:20Waning Crescent16Mon
17Tue3:272.84:302.511:570.111:540.76:517:18Waning Crescent17Tue
18Wed4:172.95:002.912:280.06:537:16New Moon18Wed
19Thu5:032.95:343.212:500.612:580.06:547:14New Moon19Thu
20Fri5:472.86:113.51:420.41:260.06:557:12New Moon20Fri
21Sat6:322.66:493.82:320.41:550.16:567:10Waxing Crescent21Sat
22Sun7:172.47:303.93:230.32:240.16:587:08Waxing Crescent22Sun
23Mon8:052.18:133.84:170.42:560.26:597:06Waxing Crescent23Mon
24Tue8:591.89:003.75:170.53:330.37:007:04First Quarter24Tue
25Wed10:031.69:523.46:260.54:170.57:017:02First Quarter25Wed
26Thu11:251.510:503.07:400.55:100.77:037:00First Quarter26Thu
27Fri1:211.68:470.46:190.97:046:58First Quarter27Fri
28Sat2:391.99:420.38:141.07:056:56Waxing Gibbous28Sat
29Sun1:112.63:212.210:300.19:580.97:066:55Waxing Gibbous29Sun
30Mon2:222.53:552.511:110.111:070.77:086:53Waxing Gibbous30Mon
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 3:47 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 99% 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 (99% 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