OCN is a three letter abbreviation that stands for: 1  OCLC Control Number, a bibliographic record identifier. 2  In Oncology nursing, an Oncology Certified Nurse. 3  Opaskwayak Cree Nation. 4  Open College Network.
Autumn is from September to November and is characterised by light breezes and cooler temperatures of around 46-50ÂºF. Itâs during autumn that many exhibitions, music concerts and sports tournaments are held in Japan.
Based on the beach/pool score, the best time of year to visit Tokyo for hot-weather activities is from late July to early September. Temperature The hot season lasts for 2.7 months, from June 27 to September 18, with an average daily high temperature above 79Â°F.