off season

US /ˈɔːfˌsiː.zən/
UK /ˈɔːfˌsiː.zən/
"off season" picture
1.

a period of the year when a particular sport or activity is not actively played or practiced

:
During the off-season, many athletes focus on strength training.
The resort is much quieter in the off-season.
1.

happening or available during the off-season

:
We got a great deal on an off-season cruise.
Off-season rates are usually lower.