Enjoy it. Bloem is about 5hours from where I live. Which airport are you flying in to?
Most places and private houses have WiFi, just chat to the owner. Not all places have large data bundles so just check before you stream anything.
In South Africa we have warm days and cool nights. Last July my wife was in the UK (Devon) for a wedding. It was 17'C over there and 31'C here in winter so maybe pack longs,boots, short and long sleeve shirts and a nice warm jacket for early mornings and sitting around the fire at night.
Bloem is a decent sized town so don't stress if you forgot anything.
Enjoy your Pound, it goes a long way against our rand.