Temperatures fall rapidly in autumn, and snow is common over much of the country in winter.
Many coastal resorts close completely, but ski resorts are in full swing between December and February.
(Apr, May, Sep & Oct)
Spring and autumn have warm weather and a calendar of cultural celebrations.
Spring melt can be hazardous; otherwise, weather is ideal for outdoor exploration.
Sights and attractions open again after winter, with fewer tourists than high summer.
High temperatures, sunny days and mild evenings throughout Bulgaria.
The Black Sea coast is at its liveliest and most expensive.
Inland cities can be stiflingly warm, though attractions remain busy.