Portland Klimat and Average Väder
Klimat of Portland: average temperatures, rainfall and seasons month by month.
Klimat in Portland month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | 8° | 1° | 176 mm | ★★☆☆☆ |
| februari | 10° | 3° | 169 mm | ★★☆☆☆ |
| mars | 13° | 5° | 164 mm | ★★☆☆☆ |
| april | 16° | 6° | 77 mm | ★★★★☆ |
| maj | 20° | 9° | 64 mm | ★★★★☆ |
| juni | 24° | 12° | 52 mm | ★★★★☆ |
| juli | 29° | 15° | 7 mm | ★★★★★ |
| augusti | 28° | 15° | 13 mm | ★★★★★ |
| september | 23° | 13° | 51 mm | ★★★★☆ |
| oktober | 17° | 9° | 151 mm | ★★★☆☆ |
| november | 11° | 6° | 218 mm | ★★☆☆☆ |
| december | 10° | 5° | 274 mm | ★☆☆☆☆ |
Klimat type: Temperate. Källa: Open-Meteo archive (ERA5).
Recent extremes in Portland
Högest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Portland compares med nearby places
Annual averages, and the difference against Portland.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Multnomah County | 0 km | 12°C | about the same | 1416 mm |
| Columbia River | 13 km | 12°C | about the same | 1365 mm |
| Silver Falls State Park | 71 km | 10°C | 2°C cooler | 2007 mm |
| Mount Hood | 78 km | -7°C | 20°C cooler | 1831 mm |
| Cannon Beach | 108 km | 11°C | 1°C cooler | 2169 mm |
Klimat by airport in Portland
1 airports mapped in this atlas
Klimat by zip / postal code in Portland
1 zip and postal codes mapped in this atlas
Bästa tiden att besöka Portland
Go in juni, juli and augusti. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januari, november and december - expect the least comfortable mix of heat, cold or rain.
What this means for Portland
Today is slightly cooler than average for september. The forecast high of 20°C is 3.5°C below the 23°C typical for this month.
Regn 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 juni och augusti.
The gap between the warmest and coldest month averages 17°C.
What och pack, what och skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sönglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid januari, november and december - historically the least comfortable months here.
Sammanfattning
Portland is a city in Oregon. Portland is known for Food carts, bookstores and forests. Befolkningen är cirka 650.000.
Just nu är det 18°C (64°F) in Portland med klart. Det känns som 18°C. I dag varierar temperaturen mellan 13°C och 20°C. Risken för nederbörd är 5%. Sightseeing conditions score 9.7/10 - utmärkt — åk nu.
Bästa tiden att besöka Portland is juni, juli and augusti. Klimatet är temperate. januari, november and december tend och be the least comfortable months. juli is the warmest month med average highs near 29°C, while januari is the coldest med lows near 1°C.
The closest major airport is Portland International Airport (PDX), about 11 km away. Nearby highlights include Columbia River, Silver Falls State Park, Mount Hood and Cannon Beach.
Enkelt förklarat. Today is slightly cooler than average for september. The forecast high of 20°C is 3.5°C below the 23°C typical for this month. The best window och be outside is roughly 2 PM och 5 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Portland today at 9.7/10. 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
| Typ | City |
|---|---|
| State | Oregon |
| Land | USA |
| Kontinent | Nordamerika |
| Koordinater | 45°30′54.7″N 122°40′42.2″W (45.5152, -122.6784) |
| Befolkning | 650.000 |
| Known for | Food carts, bookstores and forests |
| Lokal tid | 6:55 PM (UTC-07:00) |
| Best months | juni, juli and augusti |
| Klimat | Temperate |
Väder map for Portland
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore Portland
Every topic we hold for this place, and the same topic for the places around it.
Klimat for related places
Frequently asked questions
Where is Portland?
Portland is a city in Oregon. Its coordinates are 45.5152, -122.6784. It lies in Nordamerika.
What is the weather like in Portland just nu?
It is currently 18°C (64°F) med klart. Luftfuktighet is 72% and wind is 6 km/h.
When is the best time och visit Portland?
juni, juli and augusti offer the most comfortable conditions in Portland, which has a temperate climate. januari, november and december are usually the hardest months for outdoor plans.
What time zone is Portland in?
Portland observes America/Los_Angeles (UTC-07:00). The local time is 6:55 PM.
How many people live in Portland?
Portland has a population of approximately 650.000.
What is the nearest airport och Portland?
The closest airports are Portland International Airport (PDX), 11 km away, Seattle-Tacoma International Airport (SEA), 217 km away and Vancouver International Airport (YVR), 411 km away.
What are the top things och do in Portland?
Popular options include Columbia River, Silver Falls State Park, Mount Hood, Cannon Beach, Mount Regnier and Mount Regnier National Park.
What places are in Portland?
Portland covers 2 places in this atlas, including Portland International Airport and ZIP Code 97205.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder 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 september 30, 2026 at 6:55 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
