I've flown with a few Captains (this is on a 320 without fans rather than a 330, but the idea is the same) who would leave the gear down for 15-20 additional seconds any time the temps were anywhere above 250. You'll be amazed how quickly those brakes cool down once airborne and in the slipstream.
I did have one episode coming out of DEN on a hot day where the temps were 280ish, we took off, sucked the gear up only to get the BRAKES HOT ECAM at around 11,000'. Had to slow back down, drop the gear, make a PA to the customers explaining what's up etc. Kinda embarrassing.