出典:Wiktionary
seasonality (countable かつ uncountable, 複数形 seasonalities)
the season
季節外れで
Depends on the season
the unchangeable seasons
the monsoon
the alternation of the seasons
the growing season
よい季節
a successful period of time, especially for crops or sales
the harvest season
a business handeling seasonal goods
the breeding season
the change of season
the change of season
the cold season