Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

63.5°F

Measurement Time: Sunday, September 27, 2026, 10:30 PM 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

49°F
Clear
Clear
81%
0 mph
43°F

Weather Forecast

Clear
Overnight
49°F - Clear
Mostly Sunny
Monday
70°F - Mostly Sunny
Partly Cloudy
Monday Night
51°F - Partly Cloudy
Cloudy then Slight Chance Light Rain
Tuesday
68°F - Cloudy then Slight Chance Light Rain
Slight Chance Light Rain
Tuesday Night
54°F - Slight Chance Light Rain
Mostly Sunny
Wednesday
70°F - Mostly Sunny
Partly Cloudy
Wednesday Night
52°F - Partly Cloudy
Mostly Sunny
Thursday
74°F - Mostly Sunny
Partly Cloudy
Thursday Night
54°F - Partly Cloudy
Mostly Sunny
Friday
71°F - Mostly Sunny
Mostly Clear
Friday Night
53°F - Mostly Clear
Sunny
Saturday
74°F - Sunny
Mostly Clear
Saturday Night
54°F - Mostly Clear
Mostly Sunny
Sunday
76°F - Mostly Sunny

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:01 PM
Sunset: 6:56 PM
Daylight: 11 hrs 51 mins
Moonrise: 7:33 PM
Moon Transit: 2:15 AM
Moonset: 9:38 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
9:39 AM - 12:09 AM

Minor Periods

7:03 PM - 8:33 PM
9:08 AM - 10:38 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: 7:05 AM
Sun Transit: 1:01 PM
Sunset: 6:56 PM
Daylight: 11 hrs 51 mins
Moonrise: 7:33 PM
Moon Transit: 2:15 AM
Moonset: 9:38 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
9:39 AM - 12:09 AM

Minor Periods

7:03 PM - 8:33 PM
9:08 AM - 10:38 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: 7:05 AM
Sun Transit: 1:01 PM
Sunset: 6:56 PM
Daylight: 11 hrs 51 mins
Moonrise: 7:33 PM
Moon Transit: 2:15 AM
Moonset: 9:38 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
9:39 AM - 12:09 AM

Minor Periods

7:03 PM - 8:33 PM
9:08 AM - 10:38 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: 7:05 AM
Sun Transit: 1:01 PM
Sunset: 6:56 PM
Daylight: 11 hrs 51 mins
Moonrise: 7:33 PM
Moon Transit: 2:15 AM
Moonset: 9:38 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
9:39 AM - 12:09 AM

Minor Periods

7:03 PM - 8:33 PM
9:08 AM - 10:38 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: 7:07 AM
Sun Transit: 1:00 PM
Sunset: 6:54 PM
Daylight: 11 hrs 48 mins
Moonrise: 8:04 PM
Moon Transit: 3:07 AM
Moonset: 10:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
10:33 AM - 1:03 PM

Minor Periods

7:34 PM - 9:04 PM
10:28 AM - 11:58 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: 7:07 AM
Sun Transit: 1:00 PM
Sunset: 6:54 PM
Daylight: 11 hrs 48 mins
Moonrise: 8:04 PM
Moon Transit: 3:07 AM
Moonset: 10:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
10:33 AM - 1:03 PM

Minor Periods

7:34 PM - 9:04 PM
10:28 AM - 11:58 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: 7:08 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 45 mins
Moonrise: 8:44 PM
Moon Transit: 4:04 AM
Moonset: 12:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
11:31 AM - 2:01 PM

Minor Periods

8:14 PM - 9:44 PM
11:49 AM - 1:19 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: 7:08 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 45 mins
Moonrise: 8:44 PM
Moon Transit: 4:04 AM
Moonset: 12:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
11:31 AM - 2:01 PM

Minor Periods

8:14 PM - 9:44 PM
11:49 AM - 1:19 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: 7:09 AM
Sun Transit: 1:00 PM
Sunset: 6:51 PM
Daylight: 11 hrs 42 mins
Moonrise: 9:36 PM
Moon Transit: 5:04 AM
Moonset: 1:33 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:34 AM - 7:04 AM
12:33 AM - 3:03 PM

Minor Periods

9:06 PM - 10:36 PM
1:03 PM - 2:33 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: 7:09 AM
Sun Transit: 1:00 PM
Sunset: 6:51 PM
Daylight: 11 hrs 42 mins
Moonrise: 9:36 PM
Moon Transit: 5:04 AM
Moonset: 1:33 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:34 AM - 7:04 AM
12:33 AM - 3:03 PM

Minor Periods

9:06 PM - 10:36 PM
1:03 PM - 2:33 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: 7:10 AM
Sun Transit: 1:00 PM
Sunset: 6:49 PM
Daylight: 11 hrs 39 mins
Moonrise: 10:42 PM
Moon Transit: 6:07 AM
Moonset: 2:38 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
1:36 PM - 4:06 PM

Minor Periods

10:12 PM - 11:42 PM
2:08 PM - 3:38 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: 7:10 AM
Sun Transit: 1:00 PM
Sunset: 6:49 PM
Daylight: 11 hrs 39 mins
Moonrise: 10:42 PM
Moon Transit: 6:07 AM
Moonset: 2:38 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
1:36 PM - 4:06 PM

Minor Periods

10:12 PM - 11:42 PM
2:08 PM - 3:38 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: 7:12 AM
Sun Transit: 1:00 PM
Sunset: 6:47 PM
Daylight: 11 hrs 35 mins
Moonrise: 11:57 PM
Moon Transit: 7:09 AM
Moonset: 3:28 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
2:58 PM - 4:28 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: 7:12 AM
Sun Transit: 1:00 PM
Sunset: 6:47 PM
Daylight: 11 hrs 35 mins
Moonrise: 11:57 PM
Moon Transit: 7:09 AM
Moonset: 3:28 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
2:58 PM - 4:28 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: 7:13 AM
Sun Transit: 1:00 PM
Sunset: 6:45 PM
Daylight: 11 hrs 32 mins
Moonrise: 12:57 AM
Moon Transit: 8:09 AM
Moonset: 4:07 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:39 AM - 10:09 AM
3:36 PM - 6:06 PM

Minor Periods

3:37 PM - 5:07 PM
12:00 AM - 12:00 AM

Action Rating: 3 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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