Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

73.9°F

Measurement Time: Friday, August 28, 2026, 8:30 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

76°F
Sunny
Sunny
55%
NNW 5 mph
59°F

Weather Forecast

Sunny
This Afternoon
77°F - Sunny
Partly Cloudy
Tonight
56°F - Partly Cloudy
Slight Chance Rain Showers
Saturday
73°F - Slight Chance Rain Showers
Mostly Cloudy then Patchy Fog
Saturday Night
53°F - Mostly Cloudy then Patchy Fog
Patchy Fog then Partly Sunny
Sunday
75°F - Patchy Fog then Partly Sunny
Mostly Clear
Sunday Night
56°F - Mostly Clear
Mostly Sunny
Monday
82°F - Mostly Sunny
Partly Cloudy
Monday Night
58°F - Partly Cloudy
Chance Light Rain
Tuesday
76°F - Chance Light Rain
Chance Rain
Tuesday Night
57°F - Chance Rain
Rain
Wednesday
67°F - Rain
Rain
Wednesday Night
55°F - Rain
Light Rain Likely
Thursday
69°F - Light Rain Likely
Chance Light Rain
Thursday Night
53°F - Chance Light Rain

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:11 PM
Sunset: 7:55 PM
Daylight: 13 hrs 28 mins
Moonrise: 8:07 PM
Moon Transit: 1:18 AM
Moonset: 6:59 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
8:40 AM - 11:10 AM

Minor Periods

7:37 PM - 9:07 PM
6:29 AM - 7:59 AM

Action Rating: 5 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: 6:28 AM
Sun Transit: 1:11 PM
Sunset: 7:55 PM
Daylight: 13 hrs 28 mins
Moonrise: 8:07 PM
Moon Transit: 1:18 AM
Moonset: 6:59 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
8:40 AM - 11:10 AM

Minor Periods

7:37 PM - 9:07 PM
6:29 AM - 7:59 AM

Action Rating: 5 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: 6:28 AM
Sun Transit: 1:11 PM
Sunset: 7:55 PM
Daylight: 13 hrs 28 mins
Moonrise: 8:07 PM
Moon Transit: 1:18 AM
Moonset: 6:59 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
8:40 AM - 11:10 AM

Minor Periods

7:37 PM - 9:07 PM
6:29 AM - 7:59 AM

Action Rating: 5 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: 6:29 AM
Sun Transit: 1:11 PM
Sunset: 7:53 PM
Daylight: 13 hrs 25 mins
Moonrise: 8:25 PM
Moon Transit: 9:49 PM
Moonset: 8:10 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:19 PM - 11:49 PM

Minor Periods

7:55 PM - 9:25 PM
7:40 AM - 9:10 AM

Action Rating: 4 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: 6:29 AM
Sun Transit: 1:11 PM
Sunset: 7:53 PM
Daylight: 13 hrs 25 mins
Moonrise: 8:25 PM
Moon Transit: 9:49 PM
Moonset: 8:10 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:19 PM - 11:49 PM

Minor Periods

7:55 PM - 9:25 PM
7:40 AM - 9:10 AM

Action Rating: 4 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: 6:30 AM
Sun Transit: 1:11 PM
Sunset: 7:52 PM
Daylight: 13 hrs 22 mins
Moonrise: 8:43 PM
Moon Transit: 12:00 AM
Moonset: 9:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:13 PM - 9:43 PM
8:51 AM - 10:21 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: 6:30 AM
Sun Transit: 1:11 PM
Sunset: 7:52 PM
Daylight: 13 hrs 22 mins
Moonrise: 8:43 PM
Moon Transit: 12:00 AM
Moonset: 9:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:13 PM - 9:43 PM
8:51 AM - 10:21 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: 6:31 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

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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