Although Slovenia is a small country, the weather changes somewhat between its eastern and the western parts. The destinations by the coast have a typical Mediterranean climate, the Alpine regions in the north have a mountain climate, and the climate around Ljubljana somewhere in between.
The best time for a visit is between spring and autumn. Mid-summers have the highest precipitation, but it tends to rain hard and in the afternoons.
Yet, Slovenia is often referred to as the sunny side of the Alps, as any country with a mountain climate is sure to get its share of the rain. In Ljubljana, the annual precipitation is the highest in Europe.