The correct answer is - Ireland.
The marine west coast climate, a climate type according to the Koppen classification, is characterized with mild temperatures, no or very rare cases of extremes in the temperature, more than average amount of precipitation, and located in the mid-latitudes on the western coast.
This type of climate, as described, is typical for Ireland. It is located in the mid-latitudes and on the western coast. The summers are fresh with mild temperatures, the winters snowy but without any extremely low temperatures. The precipitation is relatively high throughout the whole year, and the humidity is high too. The variation of the temperatures, both between the day and night, and between the seasons, are relatively small.