Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

40.3°F

Measurement Time: Thursday, January 29, 2026, 4:30 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

50.5°F
Light rain
Light rain
50.3°F
54.7°F
89%
ESE 2.9 mph
5.7 mph
55.1°F
52°F
0 in
100%
4 mi
1026 mbar
0.2

Five Day Weather Forecast

Moderate rain
Thu
H: 58°F
L: 44°F
Moderate rain
Fri
H: 51°F
L: 45°F
Overcast
Sat
H: 57°F
L: 46°F
Heavy rain
Sun
H: 48°F
L: 43°F
Patchy rain nearby
Mon
H: 50°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 18.65 μg/m3
PM10: 24.55 μg/m3
Carbon Monoxide: 380.85 μg/m3
Nitrogen Dioxide: 43.35 μg/m3
Sulphur Dioxide: 3.75 μg/m3
Ozone: 26 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

Thursday, January 29, 2026

Weather Forecast

Moderate rain
57.9°F
43.7°F
49.1°F
85%
0.22 in
88%
0%
4.3 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 12.97 μg/m3
PM10: 17.52 μg/m3
Carbon Monoxide: 323.41 μg/m3
Nitrogen Dioxide: 25.96 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 42.32 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

Moderate rain
51.4°F
44.8°F
48.3°F
82%
0.2 in
76%
0%
5.1 mph
0.1


Air Quality

AQI: 2 - Moderate
PM2.5: 19.28 μg/m3
PM10: 24.41 μg/m3
Carbon Monoxide: 359.25 μg/m3
Nitrogen Dioxide: 38.89 μg/m3
Sulphur Dioxide: 3.72 μg/m3
Ozone: 21.4 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

Saturday, January 31, 2026

Weather Forecast

Overcast
56.7°F
45.9°F
50.7°F
82%
0 in
0%
0%
3.1 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 17.76 μg/m3
PM10: 20.3 μg/m3
Carbon Monoxide: 375.13 μg/m3
Nitrogen Dioxide: 34.07 μg/m3
Sulphur Dioxide: 4.21 μg/m3
Ozone: 31.56 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 12:24 AM
Sunset: 5:16 PM
Daylight: 9 hrs 44 mins
Moonrise: 3:53 PM
Moon Transit: 11:55 PM
Moonset: 7:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
12:00 AM - 12:00 AM

Minor Periods

3:23 PM - 4:53 PM
6:37 AM - 8:07 AM

Action Rating: 3 out of 5

Sunday, February 1, 2026

Weather Forecast

Heavy rain
47.8°F
43.1°F
45.4°F
89%
0.8 in
89%
0%
10.7 mph
0.1


Air Quality

AQI: 2 - Moderate
PM2.5: 18.2 μg/m3
PM10: 20.38 μg/m3
Carbon Monoxide: 258.58 μg/m3
Nitrogen Dioxide: 34.55 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 28.92 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:24 AM
Sunset: 5:17 PM
Daylight: 9 hrs 46 mins
Moonrise: 5:15 PM
Moon Transit: 12:00 AM
Moonset: 7:41 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:21 AM - 9:51 AM

Minor Periods

4:45 PM - 6:15 PM
7:11 AM - 8:41 AM

Action Rating: 5 out of 5

Monday, February 2, 2026

Weather Forecast

Patchy rain nearby
49.5°F
41°F
45°F
92%
0.01 in
87%
0%
3.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 8.26 μg/m3
PM10: 10.07 μg/m3
Carbon Monoxide: 212.13 μg/m3
Nitrogen Dioxide: 13.95 μg/m3
Sulphur Dioxide: 2.5 μg/m3
Ozone: 47.77 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:24 AM
Sunset: 5:19 PM
Daylight: 9 hrs 49 mins
Moonrise: 6:35 PM
Moon Transit: 12:49 AM
Moonset: 8:07 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
8:14 AM - 10:44 AM

Minor Periods

6:05 PM - 7:35 PM
7:37 AM - 9:07 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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