If you put in google Minorca weather may and look for website called accuweather - you can go back to 2017 weather and see what it was like when you are going. I know each year is different but I don’t think it’ll change much. It was 29 last year when I’m going in may! So fingers crossed!!
We went on 20th. I was worried about the weather and packed fleeces and waterproof jackets but it was lovely- sundresses all week. The main pool was too cold for me but the kids pirate ship pool was warm. We liked the hotel. We self catered, took cereal and had that and fruit for breakfast, bought rolls etc for lunch and ate out in the Marina in the evening, so can’t comment on the food but they did nice cocktails! DS who was nearly 5 when we went loved the kids club. It was 10-1 so we had a nice morning lying in the sun, lunch together and then afternoon at the pool with DS. We had the privilege apartment which had a little garden with a hammock and loungers and really liked this.