Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Portland, OR.
Next low tide (tomorrow) : 4:15 am (0.8 ft)
Next high tide : in 3h 54m at 8:38 pm (3.0 ft)
Sunset today : 8:37 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - May 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:162.010:47 AM2.55:340.88:240.65:588:16Third Quarter1Mon
2Tue1:172.111:55 AM2.36:330.99:160.75:578:17Third Quarter2Tue
3Wed2:022.31:092.27:560.910:010.75:568:19Waning Crescent3Wed
4Thu2:392.42:212.29:410.810:390.75:548:20Waning Crescent4Thu
5Fri3:122.63:212.210:530.711:100.85:538:21Waning Crescent5Fri
6Sat3:442.84:122.211:510.511:360.85:518:22Waning Crescent6Sat
7Sun4:152.94:582.212:420.35:508:24New Moon7Sun
8Mon4:473.15:402.112:000.81:290.25:488:25New Moon8Mon
9Tue5:203.36:212.112:270.82:130.15:478:26New Moon9Tue
10Wed5:553.47:022.01:020.82:550.15:468:27New Moon10Wed
11Thu6:323.57:431.91:410.83:360.25:458:29Waxing Crescent11Thu
12Fri7:103.58:261.82:220.84:160.25:438:30Waxing Crescent12Fri
13Sat7:523.49:141.83:030.84:570.35:428:31Waxing Crescent13Sat
14Sun8:393.310:061.83:460.95:400.45:418:32Waxing Crescent14Sun
15Mon9:313.111:031.94:310.96:260.55:408:33First Quarter15Mon
16Tue10:302.95:200.97:150.65:398:34First Quarter16Tue
17Wed12:012.111:36 AM2.76:170.98:030.65:378:36First Quarter17Wed
18Thu12:562.312:472.57:330.98:490.55:368:37First Quarter18Thu
19Fri1:472.61:572.49:260.89:320.55:358:38Waxing Gibbous19Fri
20Sat2:363.03:022.310:550.610:160.55:348:39Waxing Gibbous20Sat
21Sun3:233.34:012.212:030.35:338:40Waxing Gibbous21Sun
22Mon4:083.54:552.11:010.15:328:41Full Moon22Mon
23Tue4:523.75:462.11:54-0.15:318:42Full Moon23Tue
24Wed5:353.76:372.012:450.62:44-0.15:318:43Full Moon24Wed
25Thu6:173.67:282.01:350.63:31-0.15:308:44Waning Gibbous25Thu
26Fri7:003.48:212.02:220.64:180.05:298:45Waning Gibbous26Fri
27Sat7:443.29:202.03:070.75:030.25:288:46Waning Gibbous27Sat
28Sun8:312.910:272.13:510.75:490.45:278:47Waning Gibbous28Sun
29Mon9:222.611:352.24:360.86:350.55:278:48Third Quarter29Mon
30Tue10:202.35:230.97:180.75:268:49Third Quarter30Tue
31Wed12:272.311:27 AM2.16:190.97:570.85:258:50Third Quarter31Wed
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 12:26 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 83% 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 Waning Gibbous (83% 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