Translation guide
The western coastal region of a country, most commonly the United States. In Japanese, it is usually expressed as a proper noun or descriptive phrase, depending on context.
Referring to the Pacific coastal region of the U.S., including California, Oregon, and Washington.
The standard term for the West Coast of the U.S. Used in news, travel, and general conversation.
彼はアメリカの西海岸に住んでいます。
He lives on the West Coast of the United States.
西海岸の気候は温暖です。
The climate on the West Coast is mild.
Explicitly adds 'America' for clarity when the country is not obvious from context.
アメリカ西海岸への旅行を計画しています。
I'm planning a trip to the West Coast of the United States.
Loanword from English, used in some brand names or music contexts, but not common in everyday speech.
ウェストコースト・ジャズが好きです。
I like West Coast jazz.
Referring to the western coastal region of a country other than the U.S., such as Canada, New Zealand, or Japan.
General pattern: attach the country name to 西海岸. For Japan, use 日本海側 (Sea of Japan side) or 西日本 (Western Japan) instead of 西海岸, as Japan's west coast is not typically called 西海岸.
カナダの西海岸は美しいです。
The West Coast of Canada is beautiful.
ニュージーランドの西海岸をドライブしました。
We drove along the West Coast of New Zealand.
For some countries, a specific regional name is more natural than 'West Coast'. For example, in Japan, the western coastal area is often called 日本海側 or 西日本.
日本海側は冬に雪が多いです。
The Sea of Japan coast gets a lot of snow in winter.
Referring to the laid-back, sunny, or tech-oriented culture associated with the U.S. West Coast.
Used to describe the West Coast lifestyle, often implying a relaxed, outdoor-oriented way of life.
彼は西海岸のライフスタイルに憧れている。
He admires the West Coast lifestyle.
Means 'West Coast style', used for fashion, interior design, or cuisine.
このカフェは西海岸風の内装です。
This café has a West Coast-style interior.
When referring to Japan's own western coastal region, avoid 西海岸. Instead, use 日本海側 (にほんかいがわ) for the Sea of Japan coast, or 西日本 (にしにほん) for the broader western region. 西海岸 is almost exclusively used for foreign countries, especially the U.S.
日本海側の冬は厳しいです。
Winters on the Sea of Japan coast are harsh.