Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

40.1°F

Measurement Time: Monday, January 26, 2026, 5:30 AM PST

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

44.1°F
Partly cloudy
Partly cloudy
43.9°F
49.7°F
55%
SSW 2.2 mph
2.4 mph
50.1°F
42.7°F
0 in
50%
9 mi
1024 mbar
1.4

Five Day Weather Forecast

Sunny
Mon
H: 54°F
L: 32°F
Moderate rain
Tue
H: 51°F
L: 38°F
Patchy rain nearby
Wed
H: 54°F
L: 47°F
Heavy rain
Thu
H: 53°F
L: 46°F
Overcast
Fri
H: 54°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 27.95 μg/m3
PM10: 29.85 μg/m3
Carbon Monoxide: 1210.85 μg/m3
Nitrogen Dioxide: 58.85 μg/m3
Sulphur Dioxide: 7.55 μg/m3
Ozone: 17 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 12:23 AM
Sunset: 5:09 PM
Daylight: 9 hrs 31 mins
Moonrise: 10:59 AM
Moon Transit: 6:46 PM
Moonset: 1:28 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
6:16 PM - 8:46 PM

Minor Periods

10:29 AM - 11:59 AM
12:58 AM - 2:28 AM

Action Rating: 2 out of 5

Monday, January 26, 2026

Weather Forecast

Sunny
53.8°F
31.8°F
41°F
68%
0 in
0%
0%
2.7 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 17.13 μg/m3
PM10: 18.05 μg/m3
Carbon Monoxide: 445.17 μg/m3
Nitrogen Dioxide: 41.82 μg/m3
Sulphur Dioxide: 4 μg/m3
Ozone: 32.2 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 12:23 AM
Sunset: 5:09 PM
Daylight: 9 hrs 31 mins
Moonrise: 10:59 AM
Moon Transit: 6:46 PM
Moonset: 1:28 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
6:16 PM - 8:46 PM

Minor Periods

10:29 AM - 11:59 AM
12:58 AM - 2:28 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Moderate rain
51.3°F
37.8°F
42.5°F
63%
0.24 in
75%
0%
6.3 mph
0.2


Air Quality

AQI: 2 - Moderate
PM2.5: 20.76 μg/m3
PM10: 21.99 μg/m3
Carbon Monoxide: 617.25 μg/m3
Nitrogen Dioxide: 39.83 μg/m3
Sulphur Dioxide: 5.01 μg/m3
Ozone: 34.48 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 12:23 AM
Sunset: 5:10 PM
Daylight: 9 hrs 33 mins
Moonrise: 11:33 AM
Moon Transit: 7:45 PM
Moonset: 2:50 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
7:15 PM - 9:45 PM

Minor Periods

11:03 AM - 12:33 AM
2:20 AM - 3:50 AM

Action Rating: 2 out of 5

Wednesday, January 28, 2026

Weather Forecast

Patchy rain nearby
54°F
46.8°F
49.4°F
80%
0.18 in
87%
0%
6.9 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 12.15 μg/m3
PM10: 13.17 μg/m3
Carbon Monoxide: 309.01 μg/m3
Nitrogen Dioxide: 27.56 μg/m3
Sulphur Dioxide: 2.84 μg/m3
Ozone: 40.92 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 12:23 AM
Sunset: 5:12 PM
Daylight: 9 hrs 36 mins
Moonrise: 12:19 AM
Moon Transit: 8:47 PM
Moonset: 4:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
8:17 PM - 10:47 PM

Minor Periods

11:49 AM - 1:19 PM
3:40 AM - 5:10 AM

Action Rating: 2 out of 5

Thursday, January 29, 2026

Weather Forecast

Heavy rain
52.9°F
45.8°F
48.5°F
86%
0.8 in
87%
0%
6.3 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 8.56 μg/m3
PM10: 12.29 μg/m3
Carbon Monoxide: 292.8 μg/m3
Nitrogen Dioxide: 12.43 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 60.88 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:23 AM
Sunset: 5:13 PM
Daylight: 9 hrs 38 mins
Moonrise: 1:18 PM
Moon Transit: 9:52 PM
Moonset: 5:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
9:22 PM - 11:52 PM

Minor Periods

12:48 AM - 2:18 PM
4:52 AM - 6:22 AM

Action Rating: 2 out of 5

Friday, January 30, 2026

Weather Forecast

Overcast
54.2°F
44.5°F
48.5°F
90%
0 in
0%
0%
4.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 9.74 μg/m3
PM10: 11.9 μg/m3
Carbon Monoxide: 263.03 μg/m3
Nitrogen Dioxide: 28.57 μg/m3
Sulphur Dioxide: 2.82 μg/m3
Ozone: 37.85 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:24 AM
Sunset: 5:15 PM
Daylight: 9 hrs 41 mins
Moonrise: 2:32 PM
Moon Transit: 10:56 PM
Moonset: 6:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

5:21 AM - 7:51 AM
12:00 AM - 12:00 AM

Minor Periods

2:02 PM - 3:32 PM
5:52 AM - 7:22 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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