Event Dates:Mar. 4-6, 2016. Metro Gymnastics Center along with the Metro Boys and Girls Booster Clubs would like to welcome you to the 19th Annual Rose City Challenge, March 4 - 6, 2016.
Osaka: Annual Weather Averages. August is the hottest month in Osaka with an average temperature of 29Â°C (84Â°F) and the coldest is January at 6Â°C (43Â°F) with the most daily sunshine hours at 6.7 in August. The wettest month is June with an average of 230mm of rain.
What's the best time to go to Osaka in Japan? Here are some annual weather facts we collected from our historical weather data: The months May, June, July, September and October have nice weather with a good average temperature. On average, the warmest month(s) are July and August. A lot of rain (rainy season) falls in the months: March, April, May, June, July, August, September and October. On average, the warmest month is August.