Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

64.8°F

Measurement Time: Thursday, September 24, 2026, 7:30 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

60°F
Mostly Cloudy
Mostly Cloudy
86%
S 8 mph
56°F

Weather Forecast

Chance Rain Showers
Overnight
56°F - Chance Rain Showers
Showers And Thunderstorms
Friday
62°F - Showers And Thunderstorms
Partly Cloudy
Friday Night
50°F - Partly Cloudy
Patchy Fog then Partly Sunny
Saturday
64°F - Patchy Fog then Partly Sunny
Mostly Cloudy
Saturday Night
49°F - Mostly Cloudy
Mostly Sunny
Sunday
68°F - Mostly Sunny
Mostly Clear
Sunday Night
49°F - Mostly Clear
Partly Sunny
Monday
66°F - Partly Sunny
Mostly Cloudy
Monday Night
52°F - Mostly Cloudy
Partly Sunny
Tuesday
66°F - Partly Sunny
Slight Chance Light Rain
Tuesday Night
53°F - Slight Chance Light Rain
Slight Chance Light Rain then Partly Sunny
Wednesday
66°F - Slight Chance Light Rain then Partly Sunny
Slight Chance Light Rain
Wednesday Night
52°F - Slight Chance Light Rain
Slight Chance Light Rain then Partly Sunny
Thursday
65°F - Slight Chance Light Rain then Partly Sunny

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:02 PM
Sunset: 7:02 PM
Daylight: 12 hrs mins
Moonrise: 6:30 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:18 AM - 9:48 AM

Minor Periods

6:00 PM - 7:30 PM
5:23 AM - 6:53 AM

Action Rating: 6 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: 7:02 AM
Sun Transit: 1:02 PM
Sunset: 7:02 PM
Daylight: 12 hrs mins
Moonrise: 6:30 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:18 AM - 9:48 AM

Minor Periods

6:00 PM - 7:30 PM
5:23 AM - 6:53 AM

Action Rating: 6 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: 7:02 AM
Sun Transit: 1:02 PM
Sunset: 7:02 PM
Daylight: 12 hrs mins
Moonrise: 6:30 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:18 AM - 9:48 AM

Minor Periods

6:00 PM - 7:30 PM
5:23 AM - 6:53 AM

Action Rating: 6 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: 7:02 AM
Sun Transit: 1:02 PM
Sunset: 7:02 PM
Daylight: 12 hrs mins
Moonrise: 6:30 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:18 AM - 9:48 AM

Minor Periods

6:00 PM - 7:30 PM
5:23 AM - 6:53 AM

Action Rating: 6 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: 7:03 AM
Sun Transit: 1:01 PM
Sunset: 7:00 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:48 PM
Moon Transit: 5:33 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:03 AM - 7:33 AM

Minor Periods

6:18 PM - 7:48 PM
6:35 AM - 8:05 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: 7:03 AM
Sun Transit: 1:01 PM
Sunset: 7:00 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:48 PM
Moon Transit: 5:33 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:03 AM - 7:33 AM

Minor Periods

6:18 PM - 7:48 PM
6:35 AM - 8:05 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: 7:04 AM
Sun Transit: 1:01 PM
Sunset: 6:58 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:08 PM
Moon Transit: 1:26 AM
Moonset: 8:20 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:56 AM - 3:26 AM
8:50 AM - 11:20 AM

Minor Periods

6:38 PM - 8:08 PM
7:50 AM - 9:20 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: 7:04 AM
Sun Transit: 1:01 PM
Sunset: 6:58 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:08 PM
Moon Transit: 1:26 AM
Moonset: 8:20 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:56 AM - 3:26 AM
8:50 AM - 11:20 AM

Minor Periods

6:38 PM - 8:08 PM
7:50 AM - 9:20 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: 7:05 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

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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