Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

68.0°F

Measurement Time: Sunday, September 6, 2026, 1:30 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
Slight Chance Rain Showers
Slight Chance Rain Showers
99%
0 mph
60°F

Weather Forecast

Slight Chance Rain Showers then Patchy Fog
Tonight
54°F - Slight Chance Rain Showers then Patchy Fog
Patchy Fog then Partly Sunny
Labor Day
71°F - Patchy Fog then Partly Sunny
Mostly Clear
Monday Night
54°F - Mostly Clear
Mostly Sunny
Tuesday
79°F - Mostly Sunny
Mostly Clear
Tuesday Night
57°F - Mostly Clear
Sunny
Wednesday
85°F - Sunny
Mostly Clear
Wednesday Night
59°F - Mostly Clear
Sunny
Thursday
79°F - Sunny
Partly Cloudy
Thursday Night
56°F - Partly Cloudy
Mostly Sunny then Slight Chance Light Rain
Friday
71°F - Mostly Sunny then Slight Chance Light Rain
Slight Chance Light Rain
Friday Night
55°F - Slight Chance Light Rain
Mostly Sunny
Saturday
72°F - Mostly Sunny
Partly Cloudy then Slight Chance Light Rain
Saturday Night
56°F - Partly Cloudy then Slight Chance Light Rain
Slight Chance Light Rain
Sunday
76°F - Slight Chance Light Rain

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:08 PM
Sunset: 7:38 PM
Daylight: 13 hrs mins
Moonrise: 12:51 AM
Moon Transit: 9:15 AM
Moonset: 5:30 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
4:43 PM - 7:13 PM

Minor Periods

5:00 PM - 6:30 PM
12:21 AM - 1:51 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: 6:39 AM
Sun Transit: 1:08 PM
Sunset: 7:38 PM
Daylight: 13 hrs mins
Moonrise: 12:51 AM
Moon Transit: 9:15 AM
Moonset: 5:30 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
4:43 PM - 7:13 PM

Minor Periods

5:00 PM - 6:30 PM
12:21 AM - 1:51 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: 6:40 AM
Sun Transit: 1:08 PM
Sunset: 7:37 PM
Daylight: 12 hrs 57 mins
Moonrise: 2:10 AM
Moon Transit: 10:15 AM
Moonset: 6:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:42 PM - 8:12 PM
9:45 AM - 12:15 AM

Minor Periods

5:36 PM - 7:06 PM
1:40 AM - 3:10 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: 6:40 AM
Sun Transit: 1:08 PM
Sunset: 7:37 PM
Daylight: 12 hrs 57 mins
Moonrise: 2:10 AM
Moon Transit: 10:15 AM
Moonset: 6:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:42 PM - 8:12 PM
9:45 AM - 12:15 AM

Minor Periods

5:36 PM - 7:06 PM
1:40 AM - 3:10 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: 6:41 AM
Sun Transit: 1:08 PM
Sunset: 7:35 PM
Daylight: 12 hrs 54 mins
Moonrise: 3:31 AM
Moon Transit: 11:10 AM
Moonset: 6:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

6:36 PM - 9:06 PM
10:40 AM - 1:10 PM

Minor Periods

6:04 PM - 7:34 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: 6:41 AM
Sun Transit: 1:08 PM
Sunset: 7:35 PM
Daylight: 12 hrs 54 mins
Moonrise: 3:31 AM
Moon Transit: 11:10 AM
Moonset: 6:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

6:36 PM - 9:06 PM
10:40 AM - 1:10 PM

Minor Periods

6:04 PM - 7:34 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: 6:42 AM
Sun Transit: 1:07 PM
Sunset: 7:33 PM
Daylight: 12 hrs 50 mins
Moonrise: 4:53 AM
Moon Transit: 12:02 AM
Moonset: 6:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

7:26 PM - 9:56 PM
11:32 AM - 2:02 PM

Minor Periods

6:26 PM - 7:56 PM
4:23 AM - 5:53 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: 6:42 AM
Sun Transit: 1:07 PM
Sunset: 7:33 PM
Daylight: 12 hrs 50 mins
Moonrise: 4:53 AM
Moon Transit: 12:02 AM
Moonset: 6:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

7:26 PM - 9:56 PM
11:32 AM - 2:02 PM

Minor Periods

6:26 PM - 7:56 PM
4:23 AM - 5:53 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: 6:44 AM
Sun Transit: 1:07 PM
Sunset: 7:31 PM
Daylight: 12 hrs 47 mins
Moonrise: 6:11 AM
Moon Transit: 12:50 AM
Moonset: 7:15 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

8:14 PM - 10:44 PM
12:20 AM - 2:50 PM

Minor Periods

6:45 PM - 8:15 PM
5:41 AM - 7:11 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: 6:44 AM
Sun Transit: 1:07 PM
Sunset: 7:31 PM
Daylight: 12 hrs 47 mins
Moonrise: 6:11 AM
Moon Transit: 12:50 AM
Moonset: 7:15 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

8:14 PM - 10:44 PM
12:20 AM - 2:50 PM

Minor Periods

6:45 PM - 8:15 PM
5:41 AM - 7:11 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: 6:45 AM
Sun Transit: 1:07 PM
Sunset: 7:29 PM
Daylight: 12 hrs 44 mins
Moonrise: 7:25 AM
Moon Transit: 1:36 PM
Moonset: 7:34 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

8:59 PM - 11:29 PM
1:06 PM - 3:36 PM

Minor Periods

7:04 PM - 8:34 PM
6:55 AM - 8:25 AM

Action Rating: 5 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: 6:45 AM
Sun Transit: 1:07 PM
Sunset: 7:29 PM
Daylight: 12 hrs 44 mins
Moonrise: 7:25 AM
Moon Transit: 1:36 PM
Moonset: 7:34 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

8:59 PM - 11:29 PM
1:06 PM - 3:36 PM

Minor Periods

7:04 PM - 8:34 PM
6:55 AM - 8:25 AM

Action Rating: 5 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: 6:46 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

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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