Characterized by frequent rain; used to describe regions or seasons that have a lot of rainfall.
この地方は雨の多い地域なので、傘を常に持ち歩く人が多い。
This area gets a lot of rain, so many people always carry an umbrella.
雨の多い季節は湿気対策が必要だ。
During the rainy season you need to take measures against humidity.
ここ数年で雨の多い年が増えてきたように感じる。
I feel like the number of very rainy years has increased in recent years.