Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

63.5°F

Measurement Time: Sunday, October 4, 2026, 3:30 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

66°F
Sunny
Sunny
69%
NNW 2 mph
56°F

Weather Forecast

Sunny
Today
81°F - Sunny
Mostly Clear
Tonight
56°F - Mostly Clear
Mostly Sunny
Monday
76°F - Mostly Sunny
Partly Cloudy
Monday Night
55°F - Partly Cloudy
Mostly Sunny
Tuesday
76°F - Mostly Sunny
Clear
Tuesday Night
53°F - Clear
Sunny
Wednesday
77°F - Sunny
Clear
Wednesday Night
54°F - Clear
Sunny
Thursday
78°F - Sunny
Mostly Clear
Thursday Night
55°F - Mostly Clear
Mostly Sunny then Slight Chance Light Rain
Friday
71°F - Mostly Sunny then Slight Chance Light Rain
Slight Chance Light Rain
Friday Night
50°F - Slight Chance Light Rain
Slight Chance Light Rain
Saturday
64°F - Slight Chance Light Rain
Partly Cloudy
Saturday Night
48°F - Partly Cloudy

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

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

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

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: 7:14 AM
Sun Transit: 1:00 PM
Sunset: 6:43 PM
Daylight: 11 hrs 29 mins
Moonrise: 1:17 AM
Moon Transit: 9:04 AM
Moonset: 4:37 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:34 AM - 11:04 AM
4:30 PM - 7:00 PM

Minor Periods

4:07 PM - 5:37 PM
12:47 AM - 2:17 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: 7:14 AM
Sun Transit: 1:00 PM
Sunset: 6:43 PM
Daylight: 11 hrs 29 mins
Moonrise: 1:17 AM
Moon Transit: 9:04 AM
Moonset: 4:37 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:34 AM - 11:04 AM
4:30 PM - 7:00 PM

Minor Periods

4:07 PM - 5:37 PM
12:47 AM - 2:17 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: 7:15 AM
Sun Transit: 12:58 AM
Sunset: 6:41 PM
Daylight: 11 hrs 26 mins
Moonrise: 2:36 AM
Moon Transit: 9:56 AM
Moonset: 5:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

5:20 PM - 7:50 PM
9:26 AM - 11:56 AM

Minor Periods

4:30 PM - 6:00 PM
2:06 AM - 3:36 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: 7:15 AM
Sun Transit: 12:58 AM
Sunset: 6:41 PM
Daylight: 11 hrs 26 mins
Moonrise: 2:36 AM
Moon Transit: 9:56 AM
Moonset: 5:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

5:20 PM - 7:50 PM
9:26 AM - 11:56 AM

Minor Periods

4:30 PM - 6:00 PM
2:06 AM - 3:36 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: 7:17 AM
Sun Transit: 12:58 AM
Sunset: 6:40 PM
Daylight: 11 hrs 23 mins
Moonrise: 3:53 AM
Moon Transit: 10:44 AM
Moonset: 5:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

6:07 PM - 8:37 PM
10:14 AM - 12:44 AM

Minor Periods

4:50 PM - 6:20 PM
3:23 AM - 4:53 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: 7:17 AM
Sun Transit: 12:58 AM
Sunset: 6:40 PM
Daylight: 11 hrs 23 mins
Moonrise: 3:53 AM
Moon Transit: 10:44 AM
Moonset: 5:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

6:07 PM - 8:37 PM
10:14 AM - 12:44 AM

Minor Periods

4:50 PM - 6:20 PM
3:23 AM - 4:53 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: 7:18 AM
Sun Transit: 12:58 AM
Sunset: 6:38 PM
Daylight: 11 hrs 20 mins
Moonrise: 5:07 AM
Moon Transit: 11:29 AM
Moonset: 5:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

6:52 PM - 9:22 PM
10:59 AM - 1:29 PM

Minor Periods

5:08 PM - 6:38 PM
4:37 AM - 6:07 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: 7:18 AM
Sun Transit: 12:58 AM
Sunset: 6:38 PM
Daylight: 11 hrs 20 mins
Moonrise: 5:07 AM
Moon Transit: 11:29 AM
Moonset: 5:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

6:52 PM - 9:22 PM
10:59 AM - 1:29 PM

Minor Periods

5:08 PM - 6:38 PM
4:37 AM - 6:07 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: 7:19 AM
Sun Transit: 12:57 AM
Sunset: 6:36 PM
Daylight: 11 hrs 17 mins
Moonrise: 6:20 AM
Moon Transit: 12:14 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:37 PM - 10:07 PM
11:44 AM - 2:14 PM

Minor Periods

5:26 PM - 6:56 PM
5:50 AM - 7:20 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: 7:19 AM
Sun Transit: 12:57 AM
Sunset: 6:36 PM
Daylight: 11 hrs 17 mins
Moonrise: 6:20 AM
Moon Transit: 12:14 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:37 PM - 10:07 PM
11:44 AM - 2:14 PM

Minor Periods

5:26 PM - 6:56 PM
5:50 AM - 7:20 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: 7:20 AM
Sun Transit: 12:57 AM
Sunset: 6:34 PM
Daylight: 11 hrs 14 mins
Moonrise: 7:31 AM
Moon Transit: 1:00 PM
Moonset: 6:16 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

8:22 PM - 10:52 PM
12:30 AM - 3:00 PM

Minor Periods

5:46 PM - 7:16 PM
7:01 AM - 8:31 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: 7:20 AM
Sun Transit: 12:57 AM
Sunset: 6:34 PM
Daylight: 11 hrs 14 mins
Moonrise: 7:31 AM
Moon Transit: 1:00 PM
Moonset: 6:16 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

8:22 PM - 10:52 PM
12:30 AM - 3:00 PM

Minor Periods

5:46 PM - 7:16 PM
7:01 AM - 8:31 AM

Action Rating: 4 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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