Portland International Airport Climate and Average Weather
Climate of Portland International Airport: average temperatures, rainfall and seasons month by month.
Climate in Portland International Airport month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 45° | 34° | 8,0 in | ★☆☆☆☆ |
| February | 49° | 36° | 7,2 in | ★★☆☆☆ |
| March | 55° | 40° | 7,3 in | ★★☆☆☆ |
| April | 61° | 43° | 3,4 in | ★★★☆☆ |
| May | 67° | 48° | 2,5 in | ★★★★☆ |
| June | 74° | 54° | 2,0 in | ★★★★★ |
| July | 83° | 58° | 0,3 in | ★★★★★ |
| August | 84° | 60° | 0,8 in | ★★★★★ |
| September | 75° | 55° | 2,1 in | ★★★★☆ |
| October | 62° | 47° | 6,1 in | ★★★☆☆ |
| November | 52° | 42° | 8,8 in | ★★☆☆☆ |
| December | 49° | 40° | 12,2 in | ★☆☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Recent extremes in Portland International Airport
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Portland International Airport compares with nearby places
Annual averages, and the difference against Portland International Airport.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Columbia River | 5 mi | 54°F | about the same | 54 in |
| ZIP Code 97205 | 6 mi | 54°F | about the same | 56 in |
| Multnomah County | 7 mi | 54°F | about the same | 56 in |
| Mount Hood | 46 mi | 19°F | 67°F cooler | 72 in |
| Silver Falls State Park | 49 mi | 51°F | 35°F cooler | 79 in |
Best time to visit Portland International Airport
Go in June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, November and December - expect the least comfortable mix of heat, cold or rain.
What this means for Portland International Airport
Today is cooler than average for August. The forecast high of 75°F is 8.8°F below the 84°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 64°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, November and December - historically the least comfortable months here.
Summary
Portland International Airport is an airport in Portland. Portland International Airport (PDX) is a commercial airport.
Right now it is 74°F (24°C) in Portland International Airport with mainly clear. It feels like 75°F. Today runs from 60°F to 75°F. Chance of precipitation is 2%. Sightseeing conditions score 9.8/10 - excellent - go now.
The best time to visit Portland International Airport is June, July and August. The climate is temperate. January, November and December tend to be the least comfortable months. August is the warmest month with average highs near 84°F, while January is the coldest with lows near 34°F.
The closest major airport is Seattle-Tacoma International Airport (SEA), about 129 mi away. Nearby highlights include Columbia River, Mount Hood, Silver Falls State Park and Cannon Beach.
In plain terms. Today is cooler than average for August. The forecast high of 75°F is 8.8°F below the 84°F typical for this month. The best window to be outside is roughly 11 AM to 2 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Portland International Airport today at 9.8/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Portland International Airport
| Type | Airport |
|---|---|
| City | Portland |
| Country | United States |
| Continent | North America |
| Coordinates | 45°35′23.3″N 122°35′42.4″W (45.5898, -122.5951) |
| IATA code | PDX |
| Local time | 8:24 PM (UTC-07:00) |
| Best months | June, July and August |
| Climate | Temperate |
Weather map for Portland International Airport
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Portland International Airport
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Portland International Airport?
Portland International Airport is an airport in Portland. Its coordinates are 45.5898, -122.5951. It lies in North America.
What is the weather like in Portland International Airport right now?
It is currently 74°F (24°C) with mainly clear. Humidity is 52% and wind is 3 mph.
When is the best time to visit Portland International Airport?
June, July and August offer the most comfortable conditions in Portland International Airport, which has a temperate climate. January, November and December are usually the hardest months for outdoor plans.
What time zone is Portland International Airport in?
Portland International Airport observes America/Los_Angeles (UTC-07:00). The local time is 8:24 PM.
What is the nearest airport to Portland International Airport?
The closest airports are Seattle-Tacoma International Airport (SEA), 129 mi away and Vancouver International Airport (YVR), 251 mi away.
What are the top things to do in Portland International Airport?
Popular options include Columbia River, Mount Hood, Silver Falls State Park, Cannon Beach, Mount Rainier and Mount Rainier National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (airports) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 8:24 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
