Tides Today & Tomorrow in Portland, OR

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Portland, OR.
Next low tide : in 4h 20m at 3:41 am (0.8 ft)
Next high tide : 8:16 am (2.8 ft)
Sunset today : 9:02 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9439221
Common Questions About Tides

Portland, OR Tides - Apr 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:332.74:482.612:250.512:370.45:506:38New Moon1Tue
2Wed5:052.95:312.512:500.51:190.45:486:39New Moon2Wed
3Thu5:373.06:132.41:100.62:000.45:476:40New Moon3Thu
4Fri6:103.16:572.21:280.62:400.45:456:42Waxing Crescent4Fri
5Sat6:463.27:432.01:500.63:200.55:436:43Waxing Crescent5Sat
6Sun8:243.29:351.93:220.65:050.66:417:44Waxing Crescent6Sun
7Mon9:063.110:361.84:000.65:590.76:397:46Waxing Crescent7Mon
8Tue9:543.011:471.74:420.77:110.86:377:47First Quarter8Tue
9Wed10:492.95:300.88:270.86:357:48First Quarter9Wed
10Thu1:001.811:52 AM2.76:230.89:270.76:347:49First Quarter10Thu
11Fri1:531.91:002.77:230.910:150.66:327:51First Quarter11Fri
12Sat2:362.02:082.78:360.910:580.56:307:52Waxing Gibbous12Sat
13Sun3:162.33:102.810:170.811:370.46:287:53Waxing Gibbous13Sun
14Mon3:562.64:052.811:390.66:267:55Waxing Gibbous14Mon
15Tue4:362.94:562.812:140.312:430.46:257:56Full Moon15Tue
16Wed5:163.25:452.712:500.31:400.36:237:57Full Moon16Wed
17Thu5:573.46:332.51:250.32:330.26:217:59Full Moon17Thu
18Fri6:393.67:222.32:000.33:240.16:198:00Waning Gibbous18Fri
19Sat7:213.68:142.12:360.34:170.26:188:01Waning Gibbous19Sat
20Sun8:063.59:112.03:130.35:120.36:168:02Waning Gibbous20Sun
21Mon8:533.310:181.93:530.46:120.46:148:04Third Quarter21Mon
22Tue9:453.011:361.94:360.67:170.56:128:05Third Quarter22Tue
23Wed10:422.75:260.78:210.56:118:06Third Quarter23Wed
24Thu12:562.011:47 AM2.56:260.89:180.66:098:08Third Quarter24Thu
25Fri1:552.212:582.37:500.910:080.66:078:09Waning Crescent25Fri
26Sat2:402.42:082.39:360.810:520.66:068:10Waning Crescent26Sat
27Sun3:182.53:112.310:500.711:300.66:048:11Waning Crescent27Sun
28Mon3:512.74:042.311:490.56:038:13Waning Crescent28Mon
29Tue4:242.84:512.312:040.712:400.46:018:14New Moon29Tue
30Wed4:553.05:352.312:310.71:260.36:008:15New 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 5:58 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 87% 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 (87% 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