June might be one of the most pleasant months for running in Hokkaido Prefecture. The temperature usually ranges from about 12°C53°F to 22°C72°F, the wind averages 1.9m/s4.3mph and the daily precipitation is 3 mm0.1 inches.
More detailed information about the weather in Hokkaido Prefecture can be found on the page for each city.
Please post about running and in English. Other posts may be removed.