Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

65.1°F

Measurement Time: Saturday, September 12, 2026, 3:30 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

58°F
Chance Rain Showers
Chance Rain Showers
91%
S 2 mph
55°F

Weather Forecast

Light Rain Likely
Tonight
55°F - Light Rain Likely
Light Rain Likely then Rain Showers Likely
Sunday
66°F - Light Rain Likely then Rain Showers Likely
Partly Cloudy
Sunday Night
54°F - Partly Cloudy
Mostly Sunny
Monday
70°F - Mostly Sunny
Partly Cloudy
Monday Night
54°F - Partly Cloudy
Mostly Sunny
Tuesday
73°F - Mostly Sunny
Mostly Clear
Tuesday Night
55°F - Mostly Clear
Sunny
Wednesday
83°F - Sunny
Mostly Clear
Wednesday Night
58°F - Mostly Clear
Sunny
Thursday
87°F - Sunny
Mostly Clear
Thursday Night
59°F - Mostly Clear
Sunny
Friday
85°F - Sunny
Mostly Clear
Friday Night
58°F - Mostly Clear
Mostly Sunny
Saturday
78°F - Mostly Sunny

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:06 PM
Sunset: 7:27 PM
Daylight: 12 hrs 41 mins
Moonrise: 8:39 AM
Moon Transit: 2:21 PM
Moonset: 7:52 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:51 PM - 4:21 PM

Minor Periods

7:22 PM - 8:52 PM
8:09 AM - 9:39 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: 6:46 AM
Sun Transit: 1:06 PM
Sunset: 7:27 PM
Daylight: 12 hrs 41 mins
Moonrise: 8:39 AM
Moon Transit: 2:21 PM
Moonset: 7:52 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:51 PM - 4:21 PM

Minor Periods

7:22 PM - 8:52 PM
8:09 AM - 9:39 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: 6:47 AM
Sun Transit: 1:06 PM
Sunset: 7:25 PM
Daylight: 12 hrs 38 mins
Moonrise: 9:51 AM
Moon Transit: 3:06 PM
Moonset: 8:12 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:36 PM - 5:06 PM

Minor Periods

7:42 PM - 9:12 PM
9:21 AM - 10:51 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: 6:47 AM
Sun Transit: 1:06 PM
Sunset: 7:25 PM
Daylight: 12 hrs 38 mins
Moonrise: 9:51 AM
Moon Transit: 3:06 PM
Moonset: 8:12 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:36 PM - 5:06 PM

Minor Periods

7:42 PM - 9:12 PM
9:21 AM - 10:51 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: 6:48 AM
Sun Transit: 1:06 PM
Sunset: 7:23 PM
Daylight: 12 hrs 35 mins
Moonrise: 11:02 AM
Moon Transit: 3:52 PM
Moonset: 8:35 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:22 PM - 5:52 PM

Minor Periods

8:05 PM - 9:35 PM
10:32 AM - 12:02 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: 6:48 AM
Sun Transit: 1:06 PM
Sunset: 7:23 PM
Daylight: 12 hrs 35 mins
Moonrise: 11:02 AM
Moon Transit: 3:52 PM
Moonset: 8:35 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:22 PM - 5:52 PM

Minor Periods

8:05 PM - 9:35 PM
10:32 AM - 12:02 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: 6:50 AM
Sun Transit: 1:05 PM
Sunset: 7:21 PM
Daylight: 12 hrs 32 mins
Moonrise: 12:12 AM
Moon Transit: 4:40 PM
Moonset: 9:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:10 PM - 6:40 PM

Minor Periods

8:32 PM - 10:02 PM
11:42 AM - 1:12 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: 6:50 AM
Sun Transit: 1:05 PM
Sunset: 7:21 PM
Daylight: 12 hrs 32 mins
Moonrise: 12:12 AM
Moon Transit: 4:40 PM
Moonset: 9:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:10 PM - 6:40 PM

Minor Periods

8:32 PM - 10:02 PM
11:42 AM - 1:12 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: 6:51 AM
Sun Transit: 1:05 PM
Sunset: 7:19 PM
Daylight: 12 hrs 28 mins
Moonrise: 1:19 PM
Moon Transit: 5:30 PM
Moonset: 9:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
5:00 PM - 7:30 PM

Minor Periods

9:06 PM - 10:36 PM
12:49 AM - 2:19 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: 6:51 AM
Sun Transit: 1:05 PM
Sunset: 7:19 PM
Daylight: 12 hrs 28 mins
Moonrise: 1:19 PM
Moon Transit: 5:30 PM
Moonset: 9:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
5:00 PM - 7:30 PM

Minor Periods

9:06 PM - 10:36 PM
12:49 AM - 2:19 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: 6:52 AM
Sun Transit: 1:05 PM
Sunset: 7:17 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:22 PM
Moon Transit: 6:21 PM
Moonset: 10:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
5:51 PM - 8:21 PM

Minor Periods

9:48 PM - 11:18 PM
1:52 PM - 3:22 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: 6:52 AM
Sun Transit: 1:05 PM
Sunset: 7:17 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:22 PM
Moon Transit: 6:21 PM
Moonset: 10:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
5:51 PM - 8:21 PM

Minor Periods

9:48 PM - 11:18 PM
1:52 PM - 3:22 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: 6:53 AM
Sun Transit: 1:04 PM
Sunset: 7:15 PM
Daylight: 12 hrs 22 mins
Moonrise: 3:17 PM
Moon Transit: 7:12 PM
Moonset: 11:09 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
6:42 PM - 9:12 PM

Minor Periods

12:00 AM - 12:00 AM
2:47 PM - 4:17 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: 6:53 AM
Sun Transit: 1:04 PM
Sunset: 7:15 PM
Daylight: 12 hrs 22 mins
Moonrise: 3:17 PM
Moon Transit: 7:12 PM
Moonset: 11:09 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
6:42 PM - 9:12 PM

Minor Periods

12:00 AM - 12:00 AM
2:47 PM - 4:17 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: 6:54 AM
Sun Transit: 1:04 PM
Sunset: 7:13 PM
Daylight: 12 hrs 19 mins
Moonrise: 4:03 PM
Moon Transit: 8:03 PM
Moonset: 12:09 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
7:33 PM - 10:03 PM

Minor Periods

3:33 PM - 5:03 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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