San Javier is a small town and municipality in the autonomous community and province of Murcia, southeastern Spain.

The municipality is situated at the northern end of Murcia"s Mediterranean coastline, the Costa Cálida.

The Costa Cálida (English: Warm Coast) is the approximately 250 km stretch of Mediterranean coastline of the Spanish province of Murcia.

This region has a micro-climate which features comparatively hot mean annual temperatures (and hence its name, "Warm Coast") and a relative degree of aridity (precipitation averaging less than 34 cm annually).