Weather in Japan — Why It Matters More Than You Think

Japan has one of the most weather-varied climates in the world. Cherry blossom season, humid rainy season (梅雨, tsuyu), scorching summers, autumn foliage, heavy snowfall in the north, and typhoon season from August to October — the weather is a constant topic of conversation in Japan. Being able to discuss it naturally is not just small talk — it is a key part of everyday social life.

Japan also has a strong umbrella culture: nearly everyone carries a collapsible umbrella (折り畳み傘, ori tatami gasa) year-round. Knowing how to talk about rain and umbrellas will come up more often than you expect.

Core Weather Vocabulary

These seven words are the foundation — master them and you can describe almost any weather condition by combining them with adjectives and verbs.

Weather天気tenki

日本の天気はどうですか？ — What's the weather like in Japan?

Sunny晴れhare

今日は晴れていい天気ですね。 — It's sunny and perfect weather today.

Rain雨ame

朝から雨が続いています。 — It's been raining since this morning.

Cloudy曇りkumori

今日は曇りで、雨が降るかも。 — It's cloudy today, it might rain.

Snow雪yuki

今年初めて雪が降りました！ — It snowed for the first time this year!

Thunder雷kaminari

雷が怖いです。 — I'm scared of thunder.

Storm嵐arashi

今夜は嵐になりそうです。 — There's going to be a storm tonight.

Japan-Specific Weather Terms

These four terms come up constantly in Japan and are less familiar to learners — but essential once you are there. 台風 season especially generates a huge amount of weather conversation.

Heavy rain大雨ooame

大雨警報が出ています。 — There are heavy rain warnings out.

Light rain小雨kosame

小雨だから大丈夫ですよ。 — It's just a light rain, you'll be fine.

Typhoon台風taifuu

台風が近づいています。 — The typhoon is approaching.

Shower (sudden rain)通り雨toori ame

通り雨だからすぐ止むと思います。 — It's just a passing shower, it'll stop soon.

Talking About Rain

Rain generates the richest set of weather expressions in Japanese. The ～そうです (looks like it will…) and ～かもしれません (might…) patterns appear constantly in weather forecasts and casual conversation.

It will rain this afternoon午後から雨ですgogo kara ame desu

午後から雨です、傘を持ってきてください。 — It will rain this afternoon, so bring your umbrella.

It's going to rain雨が降りそうですame ga furisou desu

空を見ると雨が降りそうです。 — Looking at the sky, it seems like it's going to rain.

It might rain雨が降るかもしれませんame ga furu kamo shiremasen

今日は雨が降るかもしれません、気をつけて。 — It might rain today, so be careful.

It stopped raining雨がやみましたame ga yamimashita

雨がやみました、出かけましょう。 — The rain has stopped, let's go out.

It's getting cloudy曇ってきましたねkumotte kimashita ne

曇ってきましたね、雨になりそうです。 — It's getting cloudy — looks like rain.

The rain is getting stronger雨が強くなってきましたame ga tsuyoku natte kimashita

雨が強くなってきました、中で待ちましょう。 — The rain is getting stronger, let's wait inside.

Weather Conversation, Wishes & Umbrellas

These phrases round out your weather toolkit — from opening a conversation with いい天気ですね to the heartfelt ～ますように (I hope…) wishing expressions used before outdoor events and travel.

How's the weather?天気はどうですか？tenki wa dou desu ka

今日の東京の天気はどうですか？ — How's the weather in Tokyo today?

It's nice weatherいい天気ですねii tenki desu ne

いい天気ですね、散歩しましょう。 — It's such nice weather, let's go for a walk.

The weather is bad天気が悪いですねtenki ga warui desu ne

天気が悪いですね、今日は家にいましょう。 — The weather is bad today, let's stay inside.

Did you check the weather forecast?天気予報見ましたか？tenki yohou mimashita ka

天気予報見ましたか？今夜は雨かもしれません。 — Did you check the forecast? It might rain tonight.

I hope the weather gets better天気良くなりますようにtenki yoku narimasu you ni

週末までに天気良くなりますように。 — I hope the weather gets better by the weekend.

I hope it doesn't rain雨が降りませんようにame ga furimasen you ni

イベントの日に雨が降りませんように。 — I hope it doesn't rain on the day of the event.

Bring an umbrella傘を持って行ってくださいkasa wo motte itte kudasai

午後から雨なので、傘を持って行ってください。 — It's going to rain this afternoon, so bring an umbrella.

Do you have an umbrella?傘持ってますか？kasa motte masu ka

雨が降ってきましたね、傘持ってますか？ — It started raining — do you have an umbrella?

4 Tips for Talking About Weather in Japanese

1. いい天気ですね is your best conversation opener

Just like English-speaking cultures, commenting on good weather is the universal, zero-risk conversation starter in Japan. いい天気ですね works with neighbors, colleagues, shop staff — anyone. On a rainy day, 今日は雨ですね is equally natural. Weather small talk rarely fails.

2. ～てきました shows weather is changing

The ～てきました ending indicates something has begun or is progressing — 曇ってきました (it's getting cloudy), 雨が強くなってきました (the rain is getting stronger), 風が出てきました (the wind is picking up). This form is essential for describing weather changes in real time.

3. Know your umbrella situations

Japan has a strong umbrella culture. Convenience stores (コンビニ) sell cheap umbrellas for about ¥500 whenever it rains. Many buildings have umbrella stands and bags at the entrance. Asking 傘持ってますか？ to a friend when it suddenly rains is a natural, caring gesture — and offering to share one is genuinely kind.

4. Learn the rainy season — 梅雨

梅雨 (tsuyu) is Japan's rainy season — roughly June to mid-July, with near-daily rain across most of the country. If you are in Japan during this time, expect to use your weather vocabulary heavily. 梅雨入り (start of rainy season) and 梅雨明け (end of rainy season) are major news events in Japan.

Frequently Asked Questions

What is the best season to visit Japan weather-wise?

Spring (March–May) for cherry blossoms with mild temperatures, and autumn (September–November) for foliage and clear skies are the most popular and weather-friendly seasons. Summer is hot and humid, and rainy season (June–July) brings near-daily rain. Winter is cold but great for skiing in Hokkaido or experiencing illuminations.

How do I say the temperature in Japanese?

Temperature uses Celsius (摂氏, sesshi) in Japan. To express it: 今日は30度です (it's 30 degrees today). 気温 (kion) means air temperature. 最高気温 (saikou kion) is the high temperature and 最低気温 (saitei kion) is the low — the same terms used in forecasts.

What does 台風 season mean for travel?

Typhoon season runs roughly August to October. A strong 台風 can cancel trains, flights, and close attractions with little warning. Checking 天気予報 (weather forecast) apps — Yahoo!天気 is the most used in Japan — is essential during this period. The phrase 台風警報が出ています (a typhoon warning has been issued) is worth knowing.

What is 折り畳み傘 and why does everyone have one?

折り畳み傘 (oritami gasa) is a collapsible/folding umbrella. Japan's unpredictable rain — especially during 梅雨 and 台風 season — means most Japanese people carry one year-round. They are sold everywhere: 100-yen shops, convenience stores, and department stores. Buying one is often smarter than carrying one from abroad.

Never Get Caught in the Rain Without These Phrases

All 25 weather phrases above are available as a ready-made deck in Onigiri Anki. Study them with native Japanese audio — including the natural rising intonation of weather questions and the warmth of いい天気ですね said with genuine feeling.

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Japanese Weather Phrases: 25 Essential Expressions (2026)