noun
this season; the current season
Refers to the present season (spring, summer, autumn, winter) in a given context, often used in business or formal writing.
当季の新商品をご紹介します。
We introduce this season's new products.
noun
Obsolete usage; in modern Japanese, 当今 (とうきん) or 最近 (さいきん) are used instead.
古い文献では「当季」が「当今」と同じ意味で使われることがある。
In old texts, 当季 is sometimes used with the same meaning as 当今 (nowadays).