Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

65.8°F

Measurement Time: Friday, September 18, 2026, 4:30 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

56°F
Partly Cloudy
Partly Cloudy
86%
N 1 mph
52°F

Weather Forecast

Partly Cloudy
Overnight
55°F - Partly Cloudy
Patchy Fog then Mostly Sunny
Saturday
79°F - Patchy Fog then Mostly Sunny
Mostly Clear
Saturday Night
55°F - Mostly Clear
Sunny
Sunday
82°F - Sunny
Mostly Clear
Sunday Night
57°F - Mostly Clear
Mostly Sunny
Monday
77°F - Mostly Sunny
Partly Cloudy
Monday Night
56°F - Partly Cloudy
Mostly Sunny
Tuesday
74°F - Mostly Sunny
Partly Cloudy
Tuesday Night
53°F - Partly Cloudy
Partly Sunny
Wednesday
72°F - Partly Sunny
Mostly Cloudy
Wednesday Night
54°F - Mostly Cloudy
Partly Sunny
Thursday
71°F - Partly Sunny
Mostly Cloudy
Thursday Night
53°F - Mostly Cloudy
Partly Sunny
Friday
69°F - Partly Sunny

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

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

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

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

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: 6:56 AM
Sun Transit: 1:04 PM
Sunset: 7:12 PM
Daylight: 12 hrs 16 mins
Moonrise: 4:40 PM
Moon Transit: 8:53 PM
Moonset: 12:08 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

3:28 AM - 5:58 AM
8:23 PM - 10:53 PM

Minor Periods

4:10 PM - 5:40 PM
12:00 AM - 12:00 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: 6:56 AM
Sun Transit: 1:04 PM
Sunset: 7:12 PM
Daylight: 12 hrs 16 mins
Moonrise: 4:40 PM
Moon Transit: 8:53 PM
Moonset: 12:08 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

3:28 AM - 5:58 AM
8:23 PM - 10:53 PM

Minor Periods

4:10 PM - 5:40 PM
12:00 AM - 12:00 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: 6:57 AM
Sun Transit: 1:03 PM
Sunset: 7:10 PM
Daylight: 12 hrs 13 mins
Moonrise: 5:09 PM
Moon Transit: 9:41 PM
Moonset: 1:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
9:11 PM - 11:41 PM

Minor Periods

4:39 PM - 6:09 PM
12:43 AM - 2:13 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: 6:57 AM
Sun Transit: 1:03 PM
Sunset: 7:10 PM
Daylight: 12 hrs 13 mins
Moonrise: 5:09 PM
Moon Transit: 9:41 PM
Moonset: 1:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
9:11 PM - 11:41 PM

Minor Periods

4:39 PM - 6:09 PM
12:43 AM - 2:13 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: 6:58 AM
Sun Transit: 1:03 PM
Sunset: 7:08 PM
Daylight: 12 hrs 10 mins
Moonrise: 5:33 PM
Moon Transit: 10:27 PM
Moonset: 2:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
12:00 AM - 12:00 AM

Minor Periods

5:03 PM - 6:33 PM
1:52 AM - 3:22 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: 6:58 AM
Sun Transit: 1:03 PM
Sunset: 7:08 PM
Daylight: 12 hrs 10 mins
Moonrise: 5:33 PM
Moon Transit: 10:27 PM
Moonset: 2:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
12:00 AM - 12:00 AM

Minor Periods

5:03 PM - 6:33 PM
1:52 AM - 3:22 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: 6:59 AM
Sun Transit: 1:02 PM
Sunset: 7:06 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:53 PM
Moon Transit: 11:11 PM
Moonset: 3:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
12:00 AM - 12:00 AM

Minor Periods

5:23 PM - 6:53 PM
3:01 AM - 4:31 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: 6:59 AM
Sun Transit: 1:02 PM
Sunset: 7:06 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:53 PM
Moon Transit: 11:11 PM
Moonset: 3:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
12:00 AM - 12:00 AM

Minor Periods

5:23 PM - 6:53 PM
3:01 AM - 4:31 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: 7:00 AM
Sun Transit: 1:02 PM
Sunset: 7:04 PM
Daylight: 12 hrs 3 mins
Moonrise: 6:12 PM
Moon Transit: 11:56 PM
Moonset: 4:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

6:34 AM - 9:04 AM
12:00 AM - 12:00 AM

Minor Periods

5:42 PM - 7:12 PM
4:12 AM - 5:42 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: 7:00 AM
Sun Transit: 1:02 PM
Sunset: 7:04 PM
Daylight: 12 hrs 3 mins
Moonrise: 6:12 PM
Moon Transit: 11:56 PM
Moonset: 4:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

6:34 AM - 9:04 AM
12:00 AM - 12:00 AM

Minor Periods

5:42 PM - 7:12 PM
4:12 AM - 5:42 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: 7:02 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

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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