Temperature in Oregon in August

Daytime highs, nighttime lows and the warmest cities in Oregon, the United States of America this August.

Oregon, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in August ranging from 18°C (64°F) in Newport to 33°C (91°F) in Ontario. Nighttime temperatures generally drop to 14°C (57°F) in Ontario and 10°C (50°F) in Newport. The month of August is in the summer season. On average, August is the warmest month of the year in Oregon, the United States of America. So be prepared and pack summer clothes.

What is the temperature of the different cities in Oregon, the United States of America in August?

Find the average daytime temperatures in August for the most popular destinations in Oregon on the map below. Click on a destination dot for more detailed information.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Oregon, check out our Oregon's climate page.

See also: Oregon weather by month.

Best Places to Visit in Oregon in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Oregon.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

See all August weather averages, cities and regions in Oregon

Oregon temperatures in August: frequently asked questions

How hot does it get in Oregon, the United States of America in August?

Daytime temperatures in Portland typically peak at 28°C (82°F) in August, putting it in the high range.

How cold does it get at night in Oregon, the United States of America in August?

Portland sees nighttime lows close to 14°C (57°F) in August.

What is the warmest city in August in Oregon, the United States of America?

Ontario tops the warmest city list in our database with average maximum daytime temperatures around 33°C (91°F) and a minimum nighttime temperature of around 14°C (57°F).

What is the coldest city in August in Oregon, the United States of America?

When looking through our records, we find that Newport stands out as the coolest city in Oregon, the United States of America for the month of August. Daytime highs average 18°C (64°F) and it cools down to about 10°C (50°F) at night.

How much sun does Oregon, the United States of America get in August?

Portland enjoys close to 298 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

Interested in more climate information?

We have much more information about the climate in Oregon.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

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