Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

70.5°F

Measurement Time: Thursday, September 3, 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

58°F
Chance Rain Showers
Chance Rain Showers
96%
SSE 1 mph
57°F

Weather Forecast

Chance Rain Showers
Tonight
54°F - Chance Rain Showers
Slight Chance Showers And Thunderstorms
Friday
71°F - Slight Chance Showers And Thunderstorms
Chance Rain Showers
Friday Night
54°F - Chance Rain Showers
Chance Rain Showers
Saturday
73°F - Chance Rain Showers
Mostly Cloudy then Slight Chance Rain Showers
Saturday Night
55°F - Mostly Cloudy then Slight Chance Rain Showers
Slight Chance Rain Showers then Chance Light Rain
Sunday
75°F - Slight Chance Rain Showers then Chance Light Rain
Chance Light Rain
Sunday Night
56°F - Chance Light Rain
Slight Chance Light Rain
Labor Day
74°F - Slight Chance Light Rain
Slight Chance Light Rain
Monday Night
56°F - Slight Chance Light Rain
Partly Sunny
Tuesday
76°F - Partly Sunny
Partly Cloudy
Tuesday Night
57°F - Partly Cloudy
Mostly Sunny
Wednesday
82°F - Mostly Sunny
Partly Cloudy
Wednesday Night
58°F - Partly Cloudy
Mostly Sunny then Slight Chance Light Rain
Thursday
80°F - Mostly Sunny then Slight Chance Light Rain

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:09 PM
Sunset: 7:44 PM
Daylight: 13 hrs 9 mins
Moonrise: 10:45 PM
Moon Transit: 6:09 AM
Moonset: 2:30 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
1:37 PM - 4:07 PM

Minor Periods

10:15 PM - 11:45 PM
2:00 PM - 3:30 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: 6:35 AM
Sun Transit: 1:09 PM
Sunset: 7:44 PM
Daylight: 13 hrs 9 mins
Moonrise: 10:45 PM
Moon Transit: 6:09 AM
Moonset: 2:30 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
1:37 PM - 4:07 PM

Minor Periods

10:15 PM - 11:45 PM
2:00 PM - 3:30 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: 6:36 AM
Sun Transit: 1:09 PM
Sunset: 7:42 PM
Daylight: 13 hrs 6 mins
Moonrise: 11:41 PM
Moon Transit: 7:10 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
2:39 PM - 5:09 PM

Minor Periods

12:00 AM - 12:00 AM
3:12 PM - 4:42 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: 6:36 AM
Sun Transit: 1:09 PM
Sunset: 7:42 PM
Daylight: 13 hrs 6 mins
Moonrise: 11:41 PM
Moon Transit: 7:10 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
2:39 PM - 5:09 PM

Minor Periods

12:00 AM - 12:00 AM
3:12 PM - 4:42 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: 6:37 AM
Sun Transit: 1:09 PM
Sunset: 7:40 PM
Daylight: 13 hrs 3 mins
Moonrise: 12:41 AM
Moon Transit: 8:13 AM
Moonset: 4:43 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
3:42 PM - 6:12 PM

Minor Periods

4:13 PM - 5:43 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: 6:37 AM
Sun Transit: 1:09 PM
Sunset: 7:40 PM
Daylight: 13 hrs 3 mins
Moonrise: 12:41 AM
Moon Transit: 8:13 AM
Moonset: 4:43 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
3:42 PM - 6:12 PM

Minor Periods

4:13 PM - 5:43 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: 6:39 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

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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