We conducted a survey of the park breeze in Daisen Park in Sakai City, Osaka, between August 21-24, 2007, and the most remarkable park breeze was observed on August 24. On this day, the park breeze phenomenon was greatest at the intersection of land and sea breezes, and a slow air current intersected perpendicularly with the outer edge of the park towards an urban area within the whole park area. Although the park breeze phenomenon was observed even for sea and land breezes of only 1.0 m/s, wind direction disorder of the park breeze might arise in response to the influence of wind, resulting in the lack of park breeze on the windward side.
