Weather in Portland in august 2025

The weather in Portland in august comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.

Average weather throughout august

perfect weather UV index: 6

Weather at 6am
65°F

Partly Cloudy

24%

Cloudy

11%

Moderate rain at times

6%

Weather at 12pm
83°F

Partly Cloudy

18%

Moderate rain at times

7%

Cloudy

5%

Weather at 6pm
74°F

Partly Cloudy

17%

Moderate rain at times

6%

Cloudy

4%

Weather at 3am
59°F

Clear/Sunny

37%

Fog

37%

Partly Cloudy

15%

Cloudy

6%



Evolution of daily average temperature and precipitation in Portland in august

These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Portland in august.


The climate of Portland in august is perfect

The climate in august in Portland is dry ; it hardly ever rains (0.8in of rainfall over 1 days).

The climate nice there august. The high seasonal norm is 85°F. The seasonal minimum is 65°F. Thus, the mean temperature average in august in Portland is 74°F. Note that these seasonal averages are in contrast with those observed in Portland in august with a maximum record of 110°F in 2017 and a minimum record of 49°F in 2021. You can plan to have about 12 days with temperatures over 86°F, or 39 of the month.

Day length in Portland in august is 14:06. Sunrise is at 05:12 and sunset is at 19:18.

With a perfect weather, the month of august is advisable to go in this city.



Seasonal average climate and temperature of Portland in august

Check below seasonal norms These datas are generated from the weather statements earlier years of the month of august.

August
Outside temperature
Average temperature 74°F
Highest temperature 85°F
Lowest temperature 65°F
Highest record temperature 110°F
(2017)
Lowest record temperature 49°F
(2021)
Number of days at +86°F 12 day(s)
(39%)
Number of days at +65°F 31 day(s)
(100%)
Sea temperature
Average sea temperature 57°F
Lowest sea temperature 55°F
Highest sea temperature 60°F
Wind
Wind speed 10km/h
Wind temperature 65°F
Precipitation (rainfall)
Rainfall 0.8in
Number of days with rainfall 1 day(s)
(4%)
Record daily rainfall 1.1in
(2015)
Other climate data
Humidity 75%
Visibility 8.96km
Cloud cover 22%
UV index 6
Daily sunshine hours 14
Sunrise and sunset
Time of sunrise 05:12
Time of sunset 19:18
Length of day 14:06
Our opinion about the weather in august
Our opinion at whereandwhen.net perfect



How was the weather last august?

Here is the day by day recorded weather in Portland in august 2024:

01-08-2024
Clear/Sunny
63°F to 95°F
02-08-2024
Cloudy
70°F to 94°F
03-08-2024
Partly Cloudy
67°F to 85°F
04-08-2024
Clear/Sunny
65°F to 92°F
05-08-2024
Clear/Sunny
63°F to 90°F
06-08-2024
Clear/Sunny
59°F to 86°F
07-08-2024
Clear/Sunny
58°F to 88°F
08-08-2024
Overcast
65°F to 90°F
09-08-2024
Clear/Sunny
67°F to 88°F
10-08-2024
Clear/Sunny
63°F to 88°F
11-08-2024
Clear/Sunny
59°F to 85°F
12-08-2024
Clear/Sunny
58°F to 77°F
13-08-2024
Partly Cloudy
58°F to 79°F
14-08-2024
Clear/Sunny
58°F to 81°F
15-08-2024
Partly Cloudy
59°F to 79°F
16-08-2024
Clear/Sunny
58°F to 79°F
17-08-2024
Clear/Sunny
58°F to 86°F
18-08-2024
Patchy rain nearby
59°F to 77°F
19-08-2024
Clear/Sunny
58°F to 77°F
20-08-2024
Partly Cloudy
58°F to 76°F
21-08-2024
Partly Cloudy
58°F to 74°F
22-08-2024
Partly Cloudy
61°F to 72°F
23-08-2024
Patchy rain nearby
58°F to 63°F
24-08-2024
Patchy rain nearby
52°F to 58°F
25-08-2024
Clear/Sunny
54°F to 76°F
26-08-2024
Clear/Sunny
58°F to 81°F
27-08-2024
Partly Cloudy
63°F to 74°F
28-08-2024
Clear/Sunny
52°F to 74°F
29-08-2024
Clear/Sunny
54°F to 86°F
30-08-2024
Clear/Sunny
61°F to 90°F
31-08-2024
Clear/Sunny
63°F to 94°F

Map: other cities in the United States (USA) in august

Cities near Portland:

Salem (Oregon) in augustperfect weather
Lincoln City (Oregon) in augustperfect weather
Long Beach (Washington) in augustgood weather
Newport (Oregon) in augustperfect weather
Ocean Park (Washington) in augustgood weather
Mount Rainier National Park (Washington) in augustgood weather
Westport (Washington) in augustgood weather
Seattle in augustperfect weather
Coos Bay in augustgood weather
Crater Lake (Oregon) in augustgood weather
La Push (Washington) in augustgood weather
Boise (Idaho) in augustperfect weather
United States in august: See full list of cities

Click over cities on the map for information about the weather in august.

Legend: Portland perfect weather good tolerable bad very bad


Weather data for Portland in august:

Weather data for Portland for august are derived from an average of the weather forecast since 2009 in Portland. There is a margin of error and these forecasts are to be considered as general information only. The weather in Portland can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Portland.


Weather in july in Portland
Weather in september in Portland
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