Average temperatures, rainfall and packing tips for Osaka, Japan in September
September in Osaka is typically hot, with average daytime highs around 32°C and nights near 24°C. It is one of the warmer months of Osaka's year.
September is one of the wetter months in Osaka, with around 91 mm of rain - plan around showers.
If your dates are flexible, the most comfortable months in Osaka are usually April, May, June, October and November.
← Osaka weather tomorrow (live)
In September, Osaka averages a daytime high of about 32°C and a night-time low of around 24°C, based on recent historical data.
September is one of the wetter months in Osaka, with around 91 mm of rain - plan around showers.
September is a workable time to visit Osaka, with hot days - just pack accordingly. If your dates are flexible, the most comfortable months in Osaka are usually April, May, June, October and November.