Some articles on kannamesai:

Ise Grand Shrine - Annual Festivals
... The Tsukinamisai, which was held in June and December, as well as the Kannamesai in September, were the only three offerings performed by the Saio, an imperial princess who served as ... Kannamesai, where prayers for fair weather and sufficient rains are made, is held twice a year in May and August at both Naikū and Gekū ... The most important annual festival held at Ise Shrine is the Kannamesai Festival 神嘗祭 ...