天気— Talking About the Weather

• 今日はいい天気ですね。

  Kyou wa ii tenki desu ne.

  It's nice weather today, isn't it?

  今日は (today) + いい天気 (good weather) + です + ね (seeking agreement — the classic small-talk opener)

• 午後から雨が降ります。

  Gogo kara ame ga furimasu.

  It will rain from the afternoon.

  午後から (from the afternoon) + 雨が (rain) + 降ります (falls — the verb used for rain/snow)

• 昨日は天気が悪かったです。

  Kinou wa tenki ga warukatta desu.

  The weather was bad yesterday.

  天気が悪い (the weather is bad) → past 悪かった + です

• ・Rain is an action: English says 'it is raining' (a state). Japanese treats rain/snow as things that perform the action of falling: 雨が降っている = rain is falling.
• ・Register: use です／ます for polite small talk about weather.

Commonly confused with

The JLPT rarely asks whether you recognise a pattern — it asks which of several similar patterns fits. These are the ones 天気 is tested against.

• たい (tai) — Expressing Desire
• てもいい — Giving/Asking Permission
• に行く (ni iku) — Go (in order) To Do
• 家族 — In-Group vs Out-Group Family Terms
• を + 食べる／飲む — Eating and Drinking
• 〜が痛い — Expressing Pain
• だろう／でしょう — Probability & Seeking Agreement
• Set Polite Phrases — Social Lubricants