While the default is lowercase, there are several exceptions where a season must have a capital letter: Do You Capitalize Seasons? - Grammarly
So unless you’re naming a specific thing or starting a sentence, keep seasons lowercase. do seasons have capital letters
In standard English, the names of the seasons——are considered common nouns and should not be capitalized. Unlike the days of the week (Monday) or months of the year (January), which are proper nouns, seasons typically use lowercase letters unless a specific grammar rule dictates otherwise. General Capitalization Rules for Seasons While the default is lowercase, there are several