The actor teamed up with Chris Klein to appear in the West End production THIS IS OUR YOUTH.
And while he enjoyed his time in the British capital, Freddie's decided he's better suited to warmth.
He says, "It's a good city, but it was a little too cold. I go to warm places like Puerto Rico or Hawaii.
"It actually snowed twice while I was there and they were like, 'Oh, it's great - it's the first time it snowed in like 60 years.' I'm like, 'Yeah, that's great - thanks a lot.'
"It was freezing man. I was wearing like eight layers every day. I'm not built for that kinda weather man - my skin's thin, so's my blood man. I can't handle that - it's too cold."