dog days
US /dɔɡ deɪz/
UK /dɔɡ deɪz/

1.
Hundstage
the hottest period of the year, usually considered to be from early July to early September
:
•
We usually go on vacation during the dog days of summer.
Wir fahren normalerweise in den Urlaub während der Hundstage des Sommers.
•
It's too hot to do anything productive during these dog days.
Es ist zu heiß, um während dieser Hundstage etwas Produktives zu tun.