In high-heat environments, to preserve range it's best to import an EV that uses active liquid cooling for the battery. So no Leaf (no cooling at all), no Kia Soul EV (uses cabin air), and no VW eGolf, at least the North American-spec version (not sure if the EU-spec has liquid cooling).
I believe the Mitsubishi iMiEV, Chevy Spark EV, and Ford Focus Electric all have liquid cooling for their batteries. If you can swing the acquisition cost, so do the Tesla models, but the most affordable one (the Model 3) was just released to the public and there's a months-long if not years-long waiting list depending on the specification you want.
Blue Ocean 2012 Leaf SV, lost that 1st bar on 11/21/2015 at 26,435 miles.
Lease returned on 12/23/2015. Final LeafStat figures: 225 Gids, 17.44 kWH, SOC 91.89%, SOH 82.36%, 69.49% HX, 54.57 Ahr, battery temp 61.8 F
Now driving a 2015 VW eGolf SEL