Mild
Average highs are around 23°C, so days are mild rather than hot.
September verdict
Portland, Oregon, United States in September
Weather score59Good
Good for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 7.7h per day, enough for a balanced month. Rainfall averages 47mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
23°C
Rain
47mm
Sun
7.7h
Weather score
59
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 47mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.7h per day, enough for a balanced month.
Map
Weather map
Compare Portland, Oregon, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September23°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September47mm average rain
September sits on the drier side of Portland's year, which helps with sightseeing and transfers.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7.7 hours average sun
September sits close to Portland's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September59 weather score
September scores above Portland's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
Hotels in Portland, Oregon, United States
Marriott
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