Normal for team velocity to drop during holidays or nah?

[esquire_]

Noticed our sprint velocity has dipped about 20% over the last two weeks but I know part of it is obviously people taking time off for holidays, but could there be something else going on. Our team seems engaged, but the output just isn't matching our usual pace. Is this just normal seasonal slowdown or should I be concerned?

 

[Oli Brent]

Holiday time off absolutely makes velocity drop and I think 20% with people out is pretty normal, say you're not adjusting capacity in your planning