Temperature in Oregon in May

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

Oregon, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in May ranging from 14°C (57°F) in Willamette National Forest to 24°C (75°F) in Boardman. Nighttime temperatures generally drop to 8°C (46°F) in Boardman and 3°C (37°F) in Willamette National Forest.

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

To get a sense of May's typical temperatures in the key spots of Oregon, explore the map below. Click on a point for an in-depth look.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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 May

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 May: blue is cold, red is hot.

See all May weather averages, cities and regions in Oregon

Oregon temperatures in May: frequently asked questions

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

Average daytime highs in Oregon, the United States of America during May reach about 20°C (68°F) in Portland.

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

After dark, Portland cools to about 9°C (48°F) on an average May night.

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

From a thorough analysis of our records, Boardman clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 24°C (75°F), and evenings that remain near 8°C (46°F).

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

For the month of May, Willamette National Forest is the most temperate city in Oregon, the United States of America based on our records. Highs average 14°C (57°F) and nighttime temperatures dip to around 3°C (37°F).

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

Portland enjoys approximately 276 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to 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.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Yosemite National Park is definitely worth a visit

Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States

Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes

A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States

Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.
Must visit in the United States of America →