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 6h 31m 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 - Jun 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:063.47:271.91:160.93:170.05:258:51New Moon1Sun
2Mon6:463.48:071.92:020.93:540.15:248:52Waxing Crescent2Mon
3Tue7:273.38:491.92:460.94:290.25:248:53Waxing Crescent3Tue
4Wed8:123.29:352.03:290.95:030.35:238:54Waxing Crescent4Wed
5Thu9:013.010:242.14:130.95:380.45:238:55Waxing Crescent5Thu
6Fri9:562.811:162.34:590.96:120.55:228:55First Quarter6Fri
7Sat10:582.65:520.96:470.55:228:56First Quarter7Sat
8Sun12:082.512:072.47:001.07:240.55:228:57First Quarter8Sun
9Mon1:002.81:172.28:520.98:020.55:218:57Waxing Gibbous9Mon
10Tue1:513.12:262.110:280.78:430.55:218:58Waxing Gibbous10Tue
11Wed2:413.43:292.011:370.49:310.65:218:59Waxing Gibbous11Wed
12Thu3:293.64:262.012:360.15:218:59Waxing Gibbous12Thu
13Fri4:163.75:202.01:28-0.15:219:00Full Moon13Fri
14Sat5:023.86:112.012:000.72:17-0.25:219:00Full Moon14Sat
15Sun5:483.77:012.01:040.73:03-0.35:219:01Full Moon15Sun
16Mon6:333.57:512.12:000.73:47-0.25:219:01Waning Gibbous16Mon
17Tue7:193.28:442.12:500.74:300.05:219:01Waning Gibbous17Tue
18Wed8:063.09:402.23:380.75:120.25:219:02Waning Gibbous18Wed
19Thu8:562.710:362.34:250.85:510.45:219:02Third Quarter19Thu
20Fri9:512.411:292.45:130.96:260.65:219:02Third Quarter20Fri
21Sat10:542.16:110.96:510.75:219:03Third Quarter21Sat
22Sun12:162.512:071.97:381.06:520.85:229:03Third Quarter22Sun
23Mon12:582.71:261.89:150.87:080.85:229:03Waning Crescent23Mon
24Tue1:392.82:401.810:260.67:460.85:229:03Waning Crescent24Tue
25Wed2:203.03:421.811:230.48:320.95:229:03Waning Crescent25Wed
26Thu3:003.14:341.912:130.25:239:03Waning Crescent26Thu
27Fri3:403.25:181.912:580.05:239:03New Moon27Fri
28Sat4:213.35:571.91:40-0.15:249:03New Moon28Sat
29Sun5:023.36:321.92:19-0.15:249:03New Moon29Sun
30Mon5:433.47:072.012:581.02:55-0.15:259:03New Moon30Mon
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