summerlike

/ˈsʌmərˌlaɪk/
adjective
  1. Resembling or characteristic of summer; warm, sunny, or pleasant in a way typical of summer.
    • They enjoyed a summerlike afternoon at the beach in early June.
    • The weather today is summerlike, even though it's only April.
    • The garden had a summerlike feel with all the flowers in bloom.