Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

72.5°F

Measurement Time: Monday, August 31, 2026, 11:30 AM PDT

Temperature Locations

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Local Points of Interest

Tom McCall Waterfront Park

Willamette River

Station Name: WILLAMETTE RIVER AT PORTLAND, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 13 feet

Nearest Address:
SE Morrison Brg
Portland, OR 97204
Multnomah County

GPS Coordinates: 45.5175, -122.6691667

Nearby Water Temperatures

Crystal Springs Creek, Portland, OR (3.3 mi)
Johnson Creek, Milwaukie, OR (4.6 mi)
Fanno Creek, Beaverton, OR (7.6 mi)
Johnson Creek, Portland, OR (8.3 mi)
Kelley Creek, Portland, OR (8.7 mi)
Fanno Creek, Tigard, OR (8.9 mi)
Beaverton Creek, Beaverton, OR (8.9 mi)
Clackamas River, Oregon City, OR (10.5 mi)
Tualatin River , West Linn, OR (11.1 mi)
Johnson Creek, Gresham, OR (12.2 mi)
Rock Creek, Hillsboro, OR (12.8 mi)
Chicken Creek, Sherwood, OR (13.4 mi)
Tualatin River, Beaverton, OR (13.6 mi)
Tualatin River, Hillsboro, OR (15.6 mi)
Clackamas River, Estacada, OR (21.4 mi)

Weather for Portland, Oregon

Current Weather

84°F
Mostly Cloudy
Mostly Cloudy
38%
W 2 mph
56°F

Weather Forecast

Patchy Smoke then Mostly Cloudy
Tonight
59°F - Patchy Smoke then Mostly Cloudy
Mostly Cloudy
Tuesday
73°F - Mostly Cloudy
Mostly Cloudy then Light Rain Likely
Tuesday Night
58°F - Mostly Cloudy then Light Rain Likely
Rain
Wednesday
66°F - Rain
Rain
Wednesday Night
55°F - Rain
Showers And Thunderstorms
Thursday
66°F - Showers And Thunderstorms
Showers And Thunderstorms then Chance Light Rain
Thursday Night
54°F - Showers And Thunderstorms then Chance Light Rain
Chance Light Rain
Friday
69°F - Chance Light Rain
Chance Light Rain
Friday Night
54°F - Chance Light Rain
Slight Chance Light Rain
Saturday
73°F - Slight Chance Light Rain
Slight Chance Light Rain
Saturday Night
57°F - Slight Chance Light Rain
Chance Light Rain
Sunday
74°F - Chance Light Rain
Chance Light Rain then Partly Cloudy
Sunday Night
58°F - Chance Light Rain then Partly Cloudy
Mostly Sunny
Labor Day
76°F - Mostly Sunny

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:10 PM
Sunset: 7:50 PM
Daylight: 13 hrs 18 mins
Moonrise: 9:04 PM
Moon Transit: 3:31 AM
Moonset: 10:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
10:55 AM - 1:25 PM

Minor Periods

8:34 PM - 10:04 PM
10:06 AM - 11:36 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:10 PM
Sunset: 7:50 PM
Daylight: 13 hrs 18 mins
Moonrise: 9:04 PM
Moon Transit: 3:31 AM
Moonset: 10:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
10:55 AM - 1:25 PM

Minor Periods

8:34 PM - 10:04 PM
10:06 AM - 11:36 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:10 PM
Sunset: 7:48 PM
Daylight: 13 hrs 15 mins
Moonrise: 9:29 PM
Moon Transit: 4:20 AM
Moonset: 11:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
11:45 AM - 2:15 PM

Minor Periods

8:59 PM - 10:29 PM
11:23 AM - 12:53 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:10 PM
Sunset: 7:48 PM
Daylight: 13 hrs 15 mins
Moonrise: 9:29 PM
Moon Transit: 4:20 AM
Moonset: 11:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
11:45 AM - 2:15 PM

Minor Periods

8:59 PM - 10:29 PM
11:23 AM - 12:53 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:10 PM
Sunset: 7:46 PM
Daylight: 13 hrs 12 mins
Moonrise: 10:02 PM
Moon Transit: 5:12 AM
Moonset: 1:12 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
12:39 AM - 3:09 PM

Minor Periods

9:32 PM - 11:02 PM
12:42 AM - 2:12 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:10 PM
Sunset: 7:46 PM
Daylight: 13 hrs 12 mins
Moonrise: 10:02 PM
Moon Transit: 5:12 AM
Moonset: 1:12 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
12:39 AM - 3:09 PM

Minor Periods

9:32 PM - 11:02 PM
12:42 AM - 2:12 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:09 PM
Sunset: 7:44 PM
Daylight: 13 hrs 9 mins
Moonrise: 10:45 PM
Moon Transit: 6:09 AM
Moonset: 2:30 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
1:37 PM - 4:07 PM

Minor Periods

10:15 PM - 11:45 PM
2:00 PM - 3:30 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:09 PM
Sunset: 7:44 PM
Daylight: 13 hrs 9 mins
Moonrise: 10:45 PM
Moon Transit: 6:09 AM
Moonset: 2:30 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
1:37 PM - 4:07 PM

Minor Periods

10:15 PM - 11:45 PM
2:00 PM - 3:30 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:09 PM
Sunset: 7:42 PM
Daylight: 13 hrs 6 mins
Moonrise: 11:41 PM
Moon Transit: 7:10 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
2:39 PM - 5:09 PM

Minor Periods

12:00 AM - 12:00 AM
3:12 PM - 4:42 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:09 PM
Sunset: 7:42 PM
Daylight: 13 hrs 6 mins
Moonrise: 11:41 PM
Moon Transit: 7:10 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
2:39 PM - 5:09 PM

Minor Periods

12:00 AM - 12:00 AM
3:12 PM - 4:42 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:09 PM
Sunset: 7:40 PM
Daylight: 13 hrs 3 mins
Moonrise: 12:41 AM
Moon Transit: 8:13 AM
Moonset: 4:43 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
3:42 PM - 6:12 PM

Minor Periods

4:13 PM - 5:43 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:09 PM
Sunset: 7:40 PM
Daylight: 13 hrs 3 mins
Moonrise: 12:41 AM
Moon Transit: 8:13 AM
Moonset: 4:43 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
3:42 PM - 6:12 PM

Minor Periods

4:13 PM - 5:43 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:08 PM
Sunset: 7:38 PM
Daylight: 13 hrs mins
Moonrise: 12:51 AM
Moon Transit: 9:15 AM
Moonset: 5:30 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
4:43 PM - 7:13 PM

Minor Periods

5:00 PM - 6:30 PM
12:21 AM - 1:51 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:08 PM
Sunset: 7:38 PM
Daylight: 13 hrs mins
Moonrise: 12:51 AM
Moon Transit: 9:15 AM
Moonset: 5:30 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
4:43 PM - 7:13 PM

Minor Periods

5:00 PM - 6:30 PM
12:21 AM - 1:51 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:08 PM
Sunset: 7:37 PM
Daylight: 12 hrs 57 mins
Moonrise: 2:10 AM
Moon Transit: 10:15 AM
Moonset: 6:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:42 PM - 8:12 PM
9:45 AM - 12:15 AM

Minor Periods

5:36 PM - 7:06 PM
1:40 AM - 3:10 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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