This is the 11308th most frequent German word.
sommers
"Sommers" is an archaic German adverb meaning "in summer" or "during the summer."
Here, 'im Sommers' describes the time of the year, summer, indicating when the relaxation occurs.
Im Sommers entspanne ich mich am Strand.
In the summer, I relax on the beach.
'Sommers' is used here in an adverbial sense, denoting a general timeframe within summer.
Sommers scheint die Sonne besonders hell.
In summer, the sun shines particularly bright.
The word 'Sommers' is part of the genitive phrase 'während des Sommers', indicating an action occurring during this season.