Collocations for summer - noun

last, this past (esp. AmE)
the following, next, this, this coming
early, late
high
Seville is scorching in high summer.

good, hot, scorching
cool
dry, wet
humid
Indian
We had an Indian summer that year.
She seems to be enjoying an Indian summer of popularity. (figurative)

long

heat, temperature, weather
sun, sunlight, sunshine
rain, rains
breeze, wind
sky
solstice
camp (esp. AmE), course, school
term (esp. BrE)
There are two new courses being run in the summer term.

break, holiday (BrE), recess, vacation (AmE)
I went home for the summer holidays.
I returned home for summer vacation.

season (esp. AmE)
job
time (BrE)
the extra light brought by British Summer Time

home (esp. AmE), house
garden
flower
clothes, clothing, dress
collection, exhibition, festival, programme/program, stock (AmE), tour
He began his acting career in summer stock.

blockbuster, film (esp. BrE), movie (esp. AmE)
Olympics, sports