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Germany
Most of Germany has a temperate seasonal climate, with warm summers and cold, damp winters -- neither extreme by continental standards, though conditions vary meaningfully between regions.
The north and west, closer to the North Sea and Atlantic weather systems, have milder winters and cooler summers with more year-round rainfall. The south and east, further from the coast, see hotter summers and colder winters with more reliable snowfall.
The Bavarian Alps and other higher-elevation areas like the Harz Mountains and Black Forest experience notably colder winters and heavier snow than the surrounding lowlands.
Rain is possible year-round across the whole country, and layered clothing is a more reliable strategy than planning around any single season's typical weather.