The climate in Marbella is notably influenced by the presence of the Mediterranean sea, that controls both the temperature as well as the humidity of the atmosphere creating this way mild and pleasant temperatures during the winter.
The proximity to the Stretch of Gibraltar provides Marbella an exchange of Atlantic and Mediterranean water due to the two great currents that converge, influencing on the temperature of the water along the whole coast of the Costa del Sol, with water rather more cooler than for example along the oriental coast of Spain.
In Marbella, the temperature is ideal during most of the year, being around 18º the average temperature and rarely going below 5º even during the early morning of a winter month. The Sierra Blanca, which is situated behind the coast, protects the area from the external influences favouring a microclimate only present in Marbella and along the Costa del Sol.
During the summer, both in Marbella and in Puerto Banus, the temperature is higher, reaching up to 40º on certain days of July and August, so it's advisable not to forget your sun cream if you visit during those months of the year.
When we talk about Marbella and Puerto Banus, we can't forget to mention its climate as it's one of the reasons why this municipality on the Costa del Sol has become one of the main tourist destinations in the world.