Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

63.7°F

Measurement Time: Saturday, May 31, 2025, 1:30 AM PDT

Temperature Locations

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Local Points of Interest

Tom McCall Waterfront Park

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Willamette River

Station Name: WILLAMETTE RIVER AT PORTLAND, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 13 feet / 4 meters

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

64°F
Sunny
Conditions: Sunny
Humidity: 40%
Feels Like: 64°F
Wind: WNW 2.2 mph
Wind Gusts: 6.7 mph
Pressure: 30.12 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 2.7

Five Day Weather Forecast

Partly Cloudy
Sat
H: 70°F
L: 54°F
Sunny
Sun
H: 76°F
L: 50°F
Sunny
Mon
H: 76°F
L: 50°F
Overcast
Tue
H: 74°F
L: 51°F
Partly Cloudy
Wed
H: 74°F
L: 46°F

Air Quality

AQI: 1 - Good
PM2.5: 2.96 μg/m3
PM10: 3.7 μg/m3
Carbon Monoxide: 251.6 μg/m3
Nitrogen Dioxide: 2.78 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 1:08 PM
Sunset: 8:52 PM
Daylight: 15 hrs 27 mins
Moonrise: 10:04 AM
Moon Transit: 5:49 PM
Moonset: 12:52 AM
Moon Phase: Waxing Crescent
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

12:22 AM - 2:52 AM
5:19 PM - 7:49 PM

Minor Periods

9:34 AM - 11:04 AM
12:22 AM - 1:52 AM

Action Rating: 2 out of 5

Saturday, May 31, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.2°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 4.68 μg/m3
PM10: 5.62 μg/m3
Carbon Monoxide: 305.1 μg/m3
Nitrogen Dioxide: 11 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 65.68 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 1:08 PM
Sunset: 8:52 PM
Daylight: 15 hrs 27 mins
Moonrise: 10:04 AM
Moon Transit: 5:49 PM
Moonset: 12:52 AM
Moon Phase: Waxing Crescent
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

12:22 AM - 2:52 AM
5:19 PM - 7:49 PM

Minor Periods

9:34 AM - 11:04 AM
12:22 AM - 1:52 AM

Action Rating: 2 out of 5

Sunday, June 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 60.3°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 5.56 μg/m3
PM10: 7.39 μg/m3
Carbon Monoxide: 276.61 μg/m3
Nitrogen Dioxide: 6.02 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 71.36 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 1:08 PM
Sunset: 8:53 PM
Daylight: 15 hrs 28 mins
Moonrise: 11:18 AM
Moon Transit: 6:36 PM
Moonset: 1:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
6:06 PM - 8:36 PM

Minor Periods

10:48 AM - 12:18 AM
12:48 AM - 2:18 AM

Action Rating: 3 out of 5

Monday, June 2, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 62°F
Average Humidity: 58%
Chance of Rain: 0%
Wind: 11.4 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 5.93 μg/m3
PM10: 7.42 μg/m3
Carbon Monoxide: 271.58 μg/m3
Nitrogen Dioxide: 8.21 μg/m3
Sulphur Dioxide: 1.94 μg/m3
Ozone: 73.92 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:08 PM
Sunset: 8:54 PM
Daylight: 15 hrs 29 mins
Moonrise: 12:29 AM
Moon Transit: 7:19 PM
Moonset: 1:38 AM
Moon Phase: First Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

1:58 AM - 4:28 AM
6:49 PM - 9:19 PM

Minor Periods

11:59 AM - 1:29 PM
1:08 AM - 2:38 AM

Action Rating: 3 out of 5

Tuesday, June 3, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 59.3°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 9.09 μg/m3
PM10: 12.12 μg/m3
Carbon Monoxide: 271.8 μg/m3
Nitrogen Dioxide: 6.22 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 79.72 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:08 PM
Sunset: 8:54 PM
Daylight: 15 hrs 31 mins
Moonrise: 1:35 PM
Moon Transit: 8:00 PM
Moonset: 1:56 AM
Moon Phase: First Quarter
Moon Illumination: 48.5%

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
7:30 PM - 10:00 PM

Minor Periods

1:05 PM - 2:35 PM
1:26 AM - 2:56 AM

Action Rating: 3 out of 5

Wednesday, June 4, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 58.4°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.46 μg/m3
PM10: 9.41 μg/m3
Carbon Monoxide: 271.67 μg/m3
Nitrogen Dioxide: 11.27 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 63.92 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:09 PM
Sunset: 8:55 PM
Daylight: 15 hrs 32 mins
Moonrise: 2:40 PM
Moon Transit: 8:39 PM
Moonset: 2:11 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

3:20 AM - 5:50 AM
8:09 PM - 10:39 PM

Minor Periods

2:10 PM - 3:40 PM
1:41 AM - 3:11 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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