Try the Royal Commission. Probably indoor, but outdoor probably none.

The climate is moderate, Its less hotter when compared to the eastern regions and other parts of KSA in summer. In the winter its moderately cold not the bone chilling kind. It used to rain once/twice each year before but this year it rained on several occasions making it a good change

There is no special places like historical monuments or any touristy destinations. Its like any other cities in Saudi with parks. added advantage is it has sea. Its less crowded but there is one season starts in March where you have the flower festival which is indeed the largest of its kind. It has visitors from all over KSA for the particular month