Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Mixed for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 8h per day, so bright days are a strong part of the month. Rainfall averages 79mm, which is relatively low for holiday planning.
Monthly averages
Temp
22°C
Rain
79mm
Sun
8h
Weather score
53
Mixed
Mild
Average highs are around 22°C, so days are mild rather than hot.
Drier
Rainfall averages 79mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8h per day, so bright days are a strong part of the month.
Map
Compare Stevenson, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September22°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.
September79mm average rain
September sits on the drier side of Stevenson'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.
September8 hours average sun
September sits close to Stevenson'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.
September53 weather score
September scores above Stevenson'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.
TownePlace Suites by Marriott Portland VancouverVancouver, Washington, USA
SpringHill Suites by Marriott Portland VancouverVancouver, Washington, USA
Courtyard Portland EastPortland, Oregon, USA
Four Points by Sheraton Portland EastPortland, Oregon, USA
Residence Inn Portland VancouverVancouver, Washington, USA
Fairfield Inn & Suites Portland AirportPortland, Oregon, USA