Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

60.1°F

Measurement Time: Friday, May 9, 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

53.1°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 61%
Feels Like: 53.8°F
Wind: NNW 2.2 mph
Wind Gusts: 2.6 mph
Pressure: 30.2 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 1.9

Five Day Weather Forecast

Sunny
Fri
H: 75°F
L: 48°F
Partly Cloudy
Sat
H: 67°F
L: 51°F
Patchy rain nearby
Sun
H: 57°F
L: 50°F
Patchy rain nearby
Mon
H: 58°F
L: 46°F
Patchy rain nearby
Tue
H: 59°F
L: 43°F

Air Quality

AQI: 1 - Good
PM2.5: 8.33 μg/m3
PM10: 11.1 μg/m3
Carbon Monoxide: 340.4 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 2.22 μg/m3
Ozone: 119 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:07 PM
Sunset: 8:28 PM
Daylight: 14 hrs 42 mins
Moonrise: 5:53 PM
Moon Transit: 11:20 PM
Moonset: 4:20 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
12:00 AM - 12:00 AM

Minor Periods

5:23 PM - 6:53 PM
3:50 AM - 5:20 AM

Action Rating: 4 out of 5

Friday, May 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.8°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 3.4 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 11.88 μg/m3
PM10: 14.19 μg/m3
Carbon Monoxide: 400.12 μg/m3
Nitrogen Dioxide: 21.36 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 73.32 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:07 PM
Sunset: 8:28 PM
Daylight: 14 hrs 42 mins
Moonrise: 5:53 PM
Moon Transit: 11:20 PM
Moonset: 4:20 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
12:00 AM - 12:00 AM

Minor Periods

5:23 PM - 6:53 PM
3:50 AM - 5:20 AM

Action Rating: 4 out of 5

Saturday, May 10, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 58.7°F
Average Humidity: 49%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 1.4

Air Quality

AQI: 1 - Good
PM2.5: 9.21 μg/m3
PM10: 12.26 μg/m3
Carbon Monoxide: 424.24 μg/m3
Nitrogen Dioxide: 14.12 μg/m3
Sulphur Dioxide: 2.06 μg/m3
Ozone: 66.32 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:07 PM
Sunset: 8:30 PM
Daylight: 14 hrs 44 mins
Moonrise: 6:59 PM
Moon Transit: 12:00 AM
Moonset: 4:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:41 AM - 9:11 AM

Minor Periods

6:29 PM - 7:59 PM
4:07 AM - 5:37 AM

Action Rating: 3 out of 5

Sunday, May 11, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 53.2°F
Average Humidity: 71%
Chance of Rain: 74%
Wind: 9.6 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 10.91 μg/m3
PM10: 15.24 μg/m3
Carbon Monoxide: 331.89 μg/m3
Nitrogen Dioxide: 18 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 62.76 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:07 PM
Sunset: 8:31 PM
Daylight: 14 hrs 47 mins
Moonrise: 8:05 PM
Moon Transit: 12:01 AM
Moonset: 4:55 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:23 AM - 9:53 AM

Minor Periods

7:35 PM - 9:05 PM
4:25 AM - 5:55 AM

Action Rating: 4 out of 5

Monday, May 12, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 51.2°F
Average Humidity: 84%
Chance of Rain: 86%
Wind: 5.1 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 5.75 μg/m3
PM10: 7.09 μg/m3
Carbon Monoxide: 367.41 μg/m3
Nitrogen Dioxide: 16.4 μg/m3
Sulphur Dioxide: 2.58 μg/m3
Ozone: 60.8 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:07 PM
Sunset: 8:32 PM
Daylight: 14 hrs 49 mins
Moonrise: 9:12 PM
Moon Transit: 12:45 AM
Moonset: 5:17 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:15 AM - 2:45 AM
8:08 AM - 10:38 AM

Minor Periods

8:42 PM - 10:12 PM
4:47 AM - 6:17 AM

Action Rating: 4 out of 5

Tuesday, May 13, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 49.4°F
Average Humidity: 84%
Chance of Rain: 76%
Wind: 3.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 8.65 μg/m3
PM10: 10.96 μg/m3
Carbon Monoxide: 357.05 μg/m3
Nitrogen Dioxide: 21.55 μg/m3
Sulphur Dioxide: 1.86 μg/m3
Ozone: 49.62 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:07 PM
Sunset: 8:33 PM
Daylight: 14 hrs 52 mins
Moonrise: 10:19 PM
Moon Transit: 1:32 AM
Moonset: 5:45 AM
Moon Phase: Full
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:02 AM - 3:32 AM
8:56 AM - 11:26 AM

Minor Periods

9:49 PM - 11:19 PM
5:15 AM - 6:45 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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