Mild
Average highs are around 24°C, so days are mild rather than hot.
September verdict
Mixed for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 8.3h per day, so bright days are a strong part of the month. Rainfall averages 38mm, which is relatively low for holiday planning.
Monthly averages
Temp
24°C
Rain
38mm
Sun
8.3h
Sea
13°C
Weather score
53
Mixed
Mild
Average highs are around 24°C, so days are mild rather than hot.
Drier
Rainfall averages 38mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.3h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Compare Corvallis, Oregon, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September24°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.
September38mm average rain
September sits on the drier side of Corvallis' 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.
September8.3 hours average sun
September is brighter than Corvallis' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
September13°C average sea
September is one of Corvallis' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to October
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
September53 weather score
September scores above Corvallis' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.