Occurring in good time, in due season, or in proper time for the purpose; suitable to the season; opportune; timely; as, a seasonable supply of rain.

done or happening at the appropriate or proper time; "a timely warning"; "with timely treatment the patient has a good chance of recovery"; "a seasonable time for discussion"; "the book's publication was well timed"

in keeping with the season; "a hard but seasonable frost"; "seasonable clothes"