Synonyms for summer

summery, summertime, in summer, vacation; see hot 1, warm 1.

summertime, summer season, full summer, dog days, sunny season, harvest, haying time, vacation, picnic days, fly time*; see also season.

Antonyms winter*, cold months, snowy season.

vacation, stay for the summer, spend the summer, take a holiday at, holiday; see also live 2, remain 1.