I'm in Spain at the moment as well, fly back tomorrow.
We are on the Costa Del Tropical and it rarely goes below 8 degrees at night and up to 20 in the day. It's 18 right now.
Tbh I'm not here on holiday, my misues is Spanish and her mum is very ill and has been in hospital for the past 4 months. I've been coming every month to help out and do some sea swimming.