Newbie looking for wetsuit advice

Hi
I'm going to Famara Beach in Lanzarote to learn to surf at the beginnning of October and I'm looking to buy my own wetsuit. I am not sure whether to go for long or short fit and what thickness. I think Lanzarote will be between 20-25 degrees celsius at that time of year so i dont want anything I'm going to cook in, although I would like to get one that would also be suitable for use in the UK as well but I guess I am more likely to use it in the summer months. Some advice would be very welcome.
Thanks!
I'm going to Famara Beach in Lanzarote to learn to surf at the beginnning of October and I'm looking to buy my own wetsuit. I am not sure whether to go for long or short fit and what thickness. I think Lanzarote will be between 20-25 degrees celsius at that time of year so i dont want anything I'm going to cook in, although I would like to get one that would also be suitable for use in the UK as well but I guess I am more likely to use it in the summer months. Some advice would be very welcome.
Thanks!