Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 4h 24m at 2:36 pm (0.0 ft)
Next high tide : 6:58 pm (2.4 ft)
Sunset today : 8:41 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Oct 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:451.88:400.56:131.07:106:50First Quarter1Sun
2Mon2:412.09:360.47:451.17:116:48Waxing Gibbous2Mon
3Tue1:012.43:212.310:230.39:391.07:126:46Waxing Gibbous3Tue
4Wed2:082.43:512.511:050.210:460.87:136:44Waxing Gibbous4Wed
5Thu3:072.54:172.611:410.211:390.67:156:42Waxing Gibbous5Thu
6Fri3:572.64:432.812:120.37:166:40Full Moon6Fri
7Sat4:412.65:103.012:260.512:380.37:176:38Full Moon7Sat
8Sun5:222.65:403.21:110.41:010.47:186:37Full Moon8Sun
9Mon6:022.66:113.31:530.41:220.47:206:35Full Moon9Mon
10Tue6:402.46:443.42:340.41:470.47:216:33Waning Gibbous10Tue
11Wed7:192.37:203.53:150.42:170.57:226:31Waning Gibbous11Wed
12Thu8:002.17:583.53:570.52:510.57:246:29Waning Gibbous12Thu
13Fri8:451.98:403.44:420.63:300.77:256:27Waning Gibbous13Fri
14Sat9:381.89:283.35:350.74:130.87:266:26Third Quarter14Sat
15Sun10:421.710:243.16:400.75:020.97:286:24Third Quarter15Sun
16Mon11:551.711:292.97:510.66:011.07:296:22Third Quarter16Mon
17Tue1:071.98:510.57:201.17:306:20Third Quarter17Tue
18Wed12:402.82:082.29:410.39:121.07:326:19Waning Crescent18Wed
19Thu1:502.82:572.610:260.210:380.77:336:17Waning Crescent19Thu
20Fri2:542.83:423.011:080.111:440.57:346:15Waning Crescent20Fri
21Sat3:512.84:243.311:480.07:366:14New Moon21Sat
22Sun4:432.85:053.612:410.312:280.07:376:12New Moon22Sun
23Mon5:312.75:463.71:350.11:060.17:386:10New Moon23Mon
24Tue6:182.56:263.82:260.01:440.17:406:09Waxing Crescent24Tue
25Wed7:052.47:073.73:160.12:210.37:416:07Waxing Crescent25Wed
26Thu7:542.27:493.54:070.22:570.47:426:06Waxing Crescent26Thu
27Fri8:472.08:323.25:000.33:330.67:446:04Waxing Crescent27Fri
28Sat9:491.89:202.95:560.44:130.87:456:03First Quarter28Sat
29Sun11:111.810:142.66:580.54:591.07:476:01First Quarter29Sun
30Mon1:351.97:590.55:571.17:486:00First Quarter30Mon
31Tue2:192.18:530.57:331.17:495:58First Quarter31Tue
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 4:47 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 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